Delphinium flower from New Zealand. Caring for young seedlings

Delphinium is a flower that belongs to herbaceous plants. Family – Ranunculaceae. Another name for the flower is larkspur. In total, there are more than 450 species of annual and perennial delphiniums. Annual plants can be represented by 40 species. In China and Southeast Asia, delphinium is very common. Some gardeners say that the unopened flower resembles the head of a dolphin. This is where the name of the plant comes from. But there is another opinion, they say, the flower appeared in the city of Delphi, in Greece. In any case, all flower gardeners agree that the plant is popular and decorates any flower garden.

It’s worth noting right away that growing delphinium is a very difficult task. The place chosen for planting the plant should be well lit in the first half of the day. After lunch, it is advisable to have some shade. Water should not stagnate on the ground, otherwise the flower will begin to rot. After the plant is planted in. After five years, the plant must be transplanted to a new place, otherwise it disappears. Often the long and fragile stems of delphiniums break from the wind. This is why they need to be staked as soon as the stems grow high. If you are ready to follow all the rules for caring for this flower, then it will thank you lush flowering in September, or even in August.

As already mentioned, delphiniums come in two types:

• annuals,
• perennial.

Annuals:

The most common annual species is field delphinium varieties Alaska. This is a field plant that wildlife reaches two meters in height. The inflorescences are double or simple. How cultivated plant delphinium appeared in 1572. Delphinium blooms begin in mid-summer and end in late autumn.

It is noteworthy that the Alaska delphinium is a hybrid plant. This is a mixture of Doubtful and Oriental varieties. The stem can reach 100 centimeters in height. Flowers come in purple, red, blue, pink and even lilac. Among them there are also dwarf plants, which begin to bloom late and end flowering only with the onset of frost.

Perennials:

Already in the nineteenth century, perennial delphiniums began to be grown. These were Delphinium tall and Delphinium grandiflora. Then they started receiving hybrid plants. And the French florist Victor Lemoine developed plants with double red, blue and lavender flowers. Today there are more than eight hundred flowers of perennial delphiniums. At the same time, there are both tall and low-growing plants.

Perennial hybrid flowers are divided into groups depending on their place of origin.

• Scottish hybrids of the F1 group are considered the most popular.
• Marfin and New Zealand delphinium hybrids are also considered popular, but a little less.

For example, New Zealand delphiniums tolerate frost well and have unsurpassed decorative functions. As for the Marfinsky species, it is very difficult to find. The fact is that a flower grown from seeds loses its characteristics.

A group of New Zealand delphiniums was created not so long ago. The plants are distinguished by their tall growth and double flowers. The popularity of flowers of this group determined frost resistance, disease resistance, and durability. If you want to make money growing flowers, then New Zealand varieties are the best option.

Growing delphinium with seeds

It is considered an exciting activity when delphiniums are grown from seeds. Moreover, you can make good money from this. Today we will tell you how to grow delphiniums from seeds. Sow seeds at the end of winter. If the seeds were stored in a warm place, they will not germinate well.

Before seeds are planted in the soil, they need to be disinfected. To do this, the seeds are placed in a gauze bag and dipped in a solution of potassium permanganate for several hours. Then the seeds are washed cold water, are dried.

For seeds, soil is prepared from peat, humus and ordinary land from the garden. In order for the moisture resistance to be moderate, you need to add sand, perlite and a regular soil mixture, which is sold for flowers in the store, to the mixture. To destroy all pests, the soil must be heated in a water bath. Once the containers are filled with soil, you can plant the seeds.

When planting, be sure to write down where which variety is planted - and indicate the date of planting. The seeds are sprinkled with soil to a depth of three millimeters. The top layer is compacted. Then you need to cover the crops with black film and place them on the windowsill - closer to the warmth. The fact is that seeds germinate better in the dark. In order for the seeds to germinate quickly, you need to provide a temperature of 15 degrees maximum. To increase germination, containers with crops are placed in the refrigerator overnight after just three days. After two weeks, shoots appear. Then you immediately need to remove the film. From time to time, the ground needs to be watered or simply sprayed.

As soon as the plants have three leaves, they can be planted in separate pots. Germination is carried out at temperatures up to 20 degrees. The soil should be loose and allow moisture to pass through well. In May, you can accustom the plant to the air by placing it on the windowsill while ventilating the room. Before planting in the ground, you can feed the plant with minerals. As soon as the roots in the pot entwine the soil, you can plant the plant in the soil. It is very easy to remove seedlings from the flower bed without damaging the roots.

When you are confident that frost will not return, you can plant the delphinium in the ground. The holes are dug at a distance of 60 centimeters from each other. The diameter of the pit is 40 centimeters, the depth is up to 50 centimeters. We put half a bucket of humus in each hole. You can add ash and complex fertilizers. At the end, the resulting mixture must be mixed with soil so that fertilizers do not fall on the young roots of the flower. As soon as the planting is completed, the earth is trampled down and watered. At first, the seedlings need to be covered with a dome of plastic bottle. As soon as it starts active growth, the dome is removed.

So, shoots 15 centimeters high appear. The plant needs to be fed with cow dung at the rate of 1 bucket of dung per 10 buckets of water. The bed needs to be constantly loosened, watered and mulched, and the bushes need to be trimmed when the plant reaches a height of 25 centimeters. Leave up to three stems on the bush. Weak shoots are cut off. This way we will protect the plant from diseases. Cut shoots can be used for germination. So, we put them in sand and peat. After three weeks, roots may appear.

After the plant grown in the ground reaches half a meter in height, three supports up to two meters high must be dug around it. The work is carried out carefully so as not to damage the roots. Once the delphinium reaches a height of 120 centimeters, you can tie up its stem so that it does not break from the wind.

On growing season the plant must be provided with 60 liters of water. To prevent the plant from disappearing in the hot summer, up to three buckets of water are poured under it every day. After the soil dries out after watering, it is loosened to a depth of five centimeters. Watering is especially necessary when inflorescences form. If the plant appears powdery mildew, then you need to fight it. Disinfectants are used that can be bought at a flower shop.

As soon as flowering ends, the inflorescence must be removed. Then the seeds are picked for a new harvest, and at the place of the cut a shoot will appear, which will flower again. Even then you can divide the flower into several plants. Leaves also need to be cut from the plant after flowering to a height of 40 centimeters.

Delphinium Homeland: North hemisphere Plant type: herbaceous annual or perennial Family: Ranunculaceae Lighting: sunny place, partial shade

Soil: neutral, sandy loam, loamy Watering: regular Temperature: thermophilic Flowering: June-July Height: up to 2 m

Reproduction: seeds, division, cuttings

Hybrids of New Zealand delphiniums

In New Zealand, breeder Terry Dowdeswell has been working very fruitfully in recent decades. He created a luxurious series of delphinium hybrids, which he called New Millennium Highbrides. These flowers have the highest decorative qualities, are winter-hardy and durable.

Terry Dowdeswell's delphiniums have very large flowers, collected in dense brushes of pure and beautiful colors, semi-double or true double, with 4-6 rows of petals.

Seed storage secrets

The most important thing is that delphinium seeds are stored correctly. When stored in room conditions they lose their germination capacity by the end of the first year.

Seeds should be stored at low but positive temperatures. That's why the best place for this purpose - in the refrigerator.

Sowing seeds of New Zealand delphiniums

I choose a container for sowing seeds with a height of 8-10 cm (it is better to have the possibility of watering through a tray), fill it with soil mixture (leaf, turf, river sand-2:1:1), I water with the solution

By the way

Delphinium seeds with dark-colored flowers take longer to germinate than those with light-colored flowers.

Fitosporina-M, I let the soil air out a little and scatter the seeds on the surface. For 1 cm2 - approximately 3-4 seeds.

I sprinkle the seeds with sifted soil in a 3 mm layer, pat them down, gently moisten them and cover them with film.

Shoots

I put the crops in the refrigerator for stratification for 2 weeks. Seed germination different varieties is individual and ranges from 50% to 80%. After stratification, I place the crops on the windowsill (18~20°C) and ventilate them daily.

Shoots appear in about 2 weeks.

Seedling care

To prevent the seedlings from being affected by the black leg, I water through a tray.

After about six weeks I start picking, which I do in separate cups; I make sure that when planting I do not cover the growing point. For the first 5 days I place the plants away from the sun.

Disembarkation

At the end of May - beginning of June I plant my seedlings on permanent place(usually in groups of 3-5 pieces). A sunny place or ventilated partial shade, without stagnant water, is best suited for them.

Before planting, I dig up the soil well, add humus, sand, and leaf soil to it. In hot and dry weather, delphiniums require abundant watering.

Feeding delphinium

When the height of the shoots is 10-15 cm, I carry out the first fertilizing (organic or mineral fertilizers). During budding and at the beginning of flowering, I feed with phosphorus-potassium fertilizers.

When renewal buds are formed, it is advisable to feed them with nitrogen-free fertilizers.

New Zealand hybrids the plants are tall (up to 200 cm) and need to be tied to a support.

Protecting delphiniums from diseases

Delphiniums are highly susceptible to diseases, so they should be sprayed as a preventive measure with solutions of biological products in July - August, every 2-3 weeks. When diseases (powdery mildew) appear, plants should be treated chemicals protection.

When preparing delphiniums for winter, I always cut off the flower stalks, leaving about 25 cm from the ground. I collect the flower stalks in a bunch and tie them with twine or simply break them in half to the ground. This is done so that moisture from autumn rains does not get into the hollow stems and does not reach the root system - this way the roots are protected from rotting and damping off.

The most expensive varieties can be mulched with peat or humus with a layer of 3-4 cm.

Vegetative propagation

Important

When sowing seeds in the ground, the number of delphinium seedlings decreases sharply.

As a result natural selection More plants with natural colors (blue-violet) emerge and develop. To preserve varietal characteristics, delphiniums are best propagated vegetatively - by division or cuttings.

Large, dense delphinium bushes should be thinned out, leaving 2-3 of the strongest shoots. Removed shoots can be used for cuttings.

Preparing for winter

Faded delphinium stems must be cut back to the ground - in this case they will bloom again, although the flowering will not be as luxurious.

The division of bushes is carried out in early spring or at the end of August. When planting, the root collar is deepened by 2-3 cm, no more

Delphinium seeds can be sown at several times: in March - in the garden, in April and May - in the ground, before winter - on frozen ground.

Varieties of New Zealand delphiniums - description

• Innocent-pure white with a white eye.
• Double Innocent– white double and semi-double flowers.
• Pink Punch– double and semi-double dark pink flowers.
• Purple Passion– purple-violet with a white eye.
• Moonlight Blues– dense clusters of bright blue double flowers.
• Morning Light– dense clusters of two-color bluish-lilac semi-double flowers.
• R oyal Espiration– cornflower blue with a white eye.
• Dusky Maidens– pink with a brown eye.
• Blue Lace– light blue with pink tint, terry.
• Misty Mouwes– light and dark lilac with corrugated petals, terry.

New Zealand delphiniums - photos of varieties

New Zealand delphiniums: question and answer

I really like New Zealand delphiniums. But buying plants is expensive. Perhaps they are not very difficult to grow from seeds? What kind of care do they need? Will perennial delphiniums grow here?

Liliya Voskoboynikova, Kolomna

New Zealand hybrids are very decorative, winter-hardy and disease-resistant. Delphinium seeds quickly lose their viability; they can not be stored in the refrigerator (at low positive temperatures). more than a year. Best time for sowing - March. Before sowing, the seeds need to be soaked for 20 minutes. in a gauze bag in a bright pink solution of potassium permanganate.

Seedlings do not tolerate picking well, so it is advisable to sow the seeds in individual containers, and the layer of soil in them should be at least 10 cm. Use a mixture of sand, leaf or turf soil with the addition of a small amount of humus and peat. The cups with seeds are covered with a dark film, the temperature until germination is maintained at 10-15°C (with seedlings appearing after 9-10 days).

The seeds are covered with a thin layer of soil 2-4 mm. Soaking the seeds will help increase germination; for this, they are kept in a damp cloth in the refrigerator for 5-6 days before sowing. Another way is to place the container with the sown seeds in the refrigerator for 1-2 weeks.

Seedlings are grown at a temperature of 20-25°C; they should not be immediately exposed to the sun. In cloudy weather, it is advisable to carry out additional lighting.

Young plants should be watered moderately and regularly using a spray bottle.

Plant seedlings in open ground possible at the end of April. New Zealand hybrids are considered frost-resistant; in winters with little snow they are covered with spruce branches. You can sow seeds before winter, but in this case, due to the effects of frost, the color of the flowers is not guaranteed.

Probably many of you admired the flowering tall plants with beautiful name delphinium. But New Zealand delphiniums created a real sensation for gardening lovers. And how can one resist these double flowers on a tall stem of incredible colors? After all, the flower itself reaches a diameter of 3 to 4 cm in diameter. The height of a candle or flower spike can be from 60 cm and above, and this is not the limit. Of course, stunningly beautiful! So how is this New Zealand delphinium at home? Plants are grown by seeds and division of rhizomes.

It is best to store purchased seeds in the refrigerator until planting at a temperature of 5-7 degrees. seeds? To do this, take a sterile container with transparent lids. The soil for planting should be well steamed and pre-spilled with a solution of foundationazole, the “Maxim” preparation, or a pink solution of potassium permanganate. All this is done to prevent “black leg.” We level the soil, leaving approximately 1-1.5 cm from the side of the container. We place the seeds every 2 cm, slightly pressing them into the soil. Sprinkle about 1 cm of dry soil on top. Cover with a transparent lid and place the containers in the refrigerator on the bottom shelf, where the temperature is no higher than 6-7 degrees, for about two weeks. After this time, we remove the seedlings from the refrigerator. By this time, some seeds have already had time to germinate, so they urgently need to be placed on the window, or illuminated with a lamp. Unfortunately, not all seeds grow evenly, but here you have to make a choice in favor of the first ones.

Sowing seeds of New Zealand delphiniums (Galina and Kostya Silkin)

It has been noticed that white delphiniums are especially sensitive to bright light and additional illumination. Therefore, they must be placed in the brightest place at a temperature of 20 degrees. Don’t forget to lift the lid from time to time and water the seedlings. It is better to do this with a syringe. Avoid flooding and drying out the seedlings. While the seedlings are growing, and this happens rather slowly, they need to be watered once every two weeks with phosphorus-potassium fertilizer with the addition of Epin. Make the solution much weaker than recommended on the package. When the plants touch the tops of the lid, you need to pick them into separate pots. Each seedling should have 2-3 true leaves at this time. The soil for planting is similar, light and nutritious “Fart” or “Terra-Vita”. Taking the seedling by the tops of the cotyledon leaves, we prick each one to the depth of the point of the real leaf. Place again in a bright place at a temperature not lower than 20 degrees. The plants are gaining strength and as soon as the threat of repeated frosts has passed, we plant the seedlings in a place protected from the winds. It is important that the site is not in a lowland, not in a swampy place, but with fertile soil. For flower lovers, very useful information.

Shade your plants at first. Water and fertilize in a timely manner. At this time, your plants may be very popular with slugs. Therefore, to prevent and protect against them, sprinkle “metaldehyde” around the plants. As the plants grow, delphiniums should be tied up, preferably with special tapes and done with caution so as not to break off the tubular stem. We tie it at several points of the stem. At the end of June and beginning of July, delphiniums begin to bloom with their amazing flowers. If you want to achieve repeated flowering, then after the delphiniums have finished blooming, trim the stems. They will bloom again in the fall, just don’t forget to feed the plant. It has already been proven that plants grown by seeds repeat the shape and color of the mother bush, but unfortunately not always. To achieve an exact repetition of the color, color and shape of the delphinium flower, it is better to propagate them by dividing the bush. To do this, a bush is dug up and divided so that each division has renewal buds and roots. Sprinkle each bush with potassium permanganate, and powder the sections with charcoal powder. Carry out the entire procedure with gloves and then wash your hands thoroughly, as delphiniums are poisonous. The cuttings are planted in holes with fertile soil, without deepening the root collar. Rotted manure, compost, and Kemira fertilizer are first poured there. The distance between the bushes is 80-100 cm. After planting, the plants are well watered and shaded.

Dividing and planting delphiniums (Svetlana Eremenko)

We trim each plant, leaving a stem 20-30 cm high. It will be better if the stumps are covered with clay so that water does not get into the cavity. It must be remembered that the delphinium has a hollow stem and in this case the plant may rot. Cover the plants with dry needles and it is better to give them a dry winter. Valuable varieties are grown by diligent flower growers and gardeners in raised beds. Delphiniums are covered especially carefully in the first winters. In subsequent winters they will most likely adapt to our frosts. Delphiniums can grow in one place for up to ten years, but it is still better to replant and plant them in a new place every 4-5 years. And use fertile, loose soil for this. Now let’s just admire the flowering of New Zealand delphiniums. And you, too, can grow these at home! Good luck!

Amazing flowering plants can be an excellent decoration for any garden. But it often happens that the more luxurious the flowers, the more difficult it is to grow them. And many novice gardeners discard the idea of ​​getting a well-groomed and attractive personal plot, only after studying information about the cultures that interest them. But in fact, sticking to certain rules can be grown amazingly beautiful flowers. Today we will clarify information about such a plant as the New Zealand giant delphinium, and discuss its cultivation from seeds.

New Zealand delphiniums attract attention with their brightness and size. These wonderful flowers can reach two meters in height; they are covered with attractive double inflorescences of huge sizes, on which the petals are arranged in several rows. The colors of these flowers can be very different, and they can actually be grown in your garden from seeds.

How to grow New Zealand delphinium from seeds?

Sowing the seeds of such a plant should be done around early to mid-March. To do this, you need to stock up on planting boxes or wide containers. They need to be filled with a soil mixture made up of equal parts of humus, peat, and turf soil. It is advisable to first sift such a mixture through a sieve. It would be a good idea to add perlite or coarse sand to the soil; this will add moisture capacity and friability. For ten liters of soil mixture, you should use a glass of perlite. Also, many gardeners recommend heating the soil in a water bath - this allows you to disinfect it and destroy weed seeds, as well as fungal spores.

Planting material should also be thoroughly disinfected before planting. For this purpose, you need to wrap the seeds in gauze and dip them in a strong solution of ordinary potassium permanganate or a solution of a fungicidal preparation. Next, the New Zealand delphinium seeds must be washed under running water - without removing them from the gauze. To ensure full germination, soak planting material in a solution of a growth stimulator, for example, Epin. Use a couple of drops of this product per liter of water. Afterwards, the seeds should be dried so that they do not stick together.

Next, readers of “Popular about Health” should thoroughly water the prepared soil and carefully spread the seeds over it, slightly pressing them into the ground. Then the crops should be covered with soil, a layer of about three millimeters, no more. The soil needs to be sprayed with a spray bottle.

The box with crops must be covered with glass and black polyethylene, since in the dark their germination rate increases by an order of magnitude. It is best to place the container in a room with a stable temperature of ten to fifteen degrees. Many experienced flower growers It is advised to increase germination by placing the box with the crops in the refrigerator (in the vegetable section) for a couple of days. After a couple of days, the seeds begin to germinate, and at this time it is necessary to remove the dark film from the crops, and then all the cover.

IN further cultivation New Zealand delphinium involves systematic spraying and ventilation. After the seedlings have grown somewhat and become stronger, it is necessary to carry out a picking: plant the plants in separate pots, the volume of which is equal to three hundred milliliters.

Young plants should be kept in a fairly warm room. The best option for them the temperature will be about twenty degrees.

Watering seedlings should be moderate, but at the same time regular. It is worth noting that with excessive moisture, plants can suffer from fungal diseases and die.

Already in May, you need to gradually begin to adapt the growing seedlings to sunlight and fresh air. To do this, it should be taken out to Fresh air, at first literally for five to ten minutes, and then for longer.

New Zealand delphinium seedlings also need to be fed. Even before planting in open ground, such manipulation is carried out twice, with an interval of two weeks. The optimal fertilizer for small plants is Agricola or Mortar.

Planting in open ground

Gardeners need to closely monitor the growth of young plants. After root system The seedlings will develop so much that they will entwine an earthen ball; they can be easily removed for transplantation without injuring the roots. It is best to grow such delphiniums in places protected from the wind, which are illuminated by direct sun in the morning. But for the first time after planting, they need to be shaded.

Young plants need systematic watering. It is also worth feeding them - flowers that have grown to fifteen centimeters in height are fed with a solution of manure (one bucket of manure per ten liters of water), after flowering they use phosphorus fertilizers, and in early August - potash fertilizers. Delphiniums also need periodic loosening and weed removal. The soil around the plants can be mulched with peat.

After the size of the delphiniums reaches twenty-five to thirty centimeters, you need to thin them out, leaving no more than four to five shoots on each bush. You also need to provide growing plants with support.

Thus, growing a New Zealand delphinium flower from seeds is very exciting activity, which will be interesting even to not very experienced gardeners.

New Zealand giant delphiniums- this is a real miracle! Two meters high, with powerful stems, huge double inflorescences with several rows of petals of a wide variety of colors.

Their decorative qualities and durability far exceed those of their relatives.

Growing New Zealand delphiniums from seeds- a very exciting activity: it is impossible to predict which characteristics of the parent plant will be inherited, and which new and unexpected ones will appear.

Seed preparation

If you buy seeds in a store, choose proven ones with good recommendations companies. Need to know that real seeds of imported selection of this variety are very expensive - one seed costs up to 10-20 rubles.

If you are offered inexpensive giant, then most likely the package with a beautiful picture is not at all what is stated.

If you collect delphinium seeds yourself, do so only in dry weather, having previously waited when they are fully ripe.

Choice the right moment is very important, since overripe fruits crack and seeds spill out. Collect them a little earlier, but after the fruits have acquired a brown color.

If you have collected fruits that only started to turn brown, place them in a dry, well-ventilated place and let them ripen. Usually, after such treatment, the seeds are of high quality, with good germination.

Seed shelf life giants at low temperatures (in the refrigerator) - up to 1 year.

Processing of planting material

For successful germination New Zealand delphinium seeds require three conditions: watering, correct air humidity and temperature.

Average seed germination of this type of delphinium is approximately 67%, and by pre-soaking in water it can be increased to 80% or more.

To do this, wrap the collected planting material in clean white fabric and store in the refrigerator for 5-6 days, constantly moistening. You cannot keep the roll floating in water, because the seeds must breathe!

Ideal option Soaking seeds involves wrapping a fabric roll in sphagnum moss. By the end of the period, the seeds will swell and be ready for sowing.

Sowing

Best time to sow New Zealand delphinium - March.

Pour a soil mixture of turf, peat and humus into the containers in equal quantities, after sifting it through a sieve and leveling it along the edges.

Water well and sow. Then carefully Press the seed into the soil with a spatula, water it again and cover it with a layer of soil up to 3 mm. To prevent the surface from drying out, cover the boxes with burlap.

Watering can be done directly through the covering, sometimes removing it to check the moisture status. If the seeds are washed away, and they are on top, sprinkle again. At a temperature of 12-15 degrees, seedlings will appear in 9-10 days.

From this moment on, the burlap can be removed, but the seedlings should be exposed to the sun do not hurry Observe how they will first sprout a root and a subcotyledonous knee, which will move out of the ground in an arc and drag the cotyledons along with it.

And only after the cotyledons unfold from a point located between two petioles will appear real leaves.

About a month after sowing, the seedlings become crowded in a common box. The first leaves are formed, which means it's time to get started for a transplant. Plant young seedlings at a distance of 3-4 cm from each other and send them to a greenhouse under film, where they will be kept until sowing in open ground.

If you notice If the growth of the giants has stopped, feed them with mineral fertilizers at the rate of 1 g per 40 plants. Delphinium can be planted in a flower garden or beds already at the end of April, since it is not afraid of light spring frosts.

Considering frost resistance New Zealand giant, flower growers sometimes practice autumn sowing seeds directly into open ground.

In the beds, furrows are made up to half a centimeter deep at a distance of 4-5 cm from each other, seeds are poured into them and sprinkled with the same soil or peat in half with sand.

The beds are covered with pine or spruce branches and strengthened. As soon as the shoots appear, the shelter is opened and left in this form until spring.

There is a third way - winter sowing when seeds are sown during the onset of frost. They make furrows, sow seeds, and cover with dry soil. Such seedlings germinate in April, and in May they are transplanted to a new location.

Autumn and winter crops must be done carefully, only if necessary, since they do not always justify themselves, especially when breeding varietal delphiniums.

Secrets of success

Secrets to the success of growing delphinium:

• plant delphinium in masses near the walls of a house or fence - this will give them wind protection;
• choose a place where there is no sun before lunch and where water does not stagnate after the rains;
• three times per season feed the delphinium complex fertilizers: first nitrogen, then potassium.

Terry Dowdeswell, famous New Zealand breeder, father-creator of many giant varieties, recommends young plants are prevented from rot damage.

He's the same gives advice Russian gardeners: in our cold climate, do not propagate the New Zealand delphinium by cuttings, but practice dividing the rhizomes or growing from seeds.