How to grow Gerbera daisies best? Cultivation methods and seed planting tips

1. When caring for Gerbera daisies, special attention must be paid to the diseases that may affect them.

1. Phytophthora rot: The key to prevention and control is that continuous cropping soil must be disinfected with Vapam and formaldehyde, etc.; see the instructions for usage method and dosage; plant shallowly, with the root crown exposed about 1 cm above the surface; prevent the soil from being too wet. If soil below 10 cm of the surface soil does not form a ball after being placed in the palm and squeezed hard, then it can be watered; in the early stage of the disease, when part of the leaves turn red and begin to wilt, drench the roots with a 400-fold solution of 58% phosethyl-Al and mancozeb, then after 7 days drench the roots with a 500-fold solution of 64% Sandofan powder. Apply the pesticide in the early morning or evening when the temperature is low, stop applying when the temperature is above 28 degrees, apply once every 7 days, for 3 consecutive times.

2. Powdery mildew: The key to prevention and control is to keep the greenhouse ventilated and low in humidity; remove diseased leaves in time; when the disease occurs, spray a 1500-fold solution of 70% thiophanate-methyl, or use 20% Junke smoke for fumigation control, once every 7 days, for 2-3 consecutive treatments. In addition, use the sulfur fumigation method for control, placing 20-30 g of sulfur powder in each fumigator at a time, after lowering the curtain at 17:00 each day, keep the greenhouse sealed, heat with electricity for 2 hours, replace the sulfur powder once every 6 days, and continue fumigating for 15 days. During the outbreak period of powdery mildew, fumigate for 8-10 h every day, and about 10 days are enough to eliminate powdery mildew.

2. Temperature requirements. Use cultivation facilities to meet as much as possible the temperature requirements of Gerbera daisies during the seedling stage, growth stage and flowering stage, so as to facilitate normal growth and flowering. In southern China, they cannot overwinter outdoors and need greenhouse cultivation; outside the Yangtze River basin, they can be cultivated in unheated plastic tunnels. In summer, a shade net needs to be covered on top of the tunnel, and the plastic film on both sides of the tunnel should be opened to lower the temperature. In winter, when the outdoor night temperature approaches 0C, seal the plastic film tightly, and an additional layer of plastic film must be added inside the tunnel. On clear and warm days, open the film at the south end of the tunnel around noon for ventilation for about one hour.

3. Light requirements. Gerbera daisies are light-loving flowers and need full light in winter, but in summer attention should be paid to appropriate shading and enhanced ventilation to lower the temperature and prevent dormancy caused by high temperatures.

4. Watering requirements. After planting, during the seedling stage, keep the soil appropriately moist and practice seedling hardening to promote root development and rapid establishment. During vigorous growth, sufficient water should be maintained; water once every 3-4 days in summer and about once every half month in winter. When watering during the flowering stage, be careful not to let water touch the center of the leaf rosette, to prevent flower bud rot. For open-field cultivation, pay attention to preventing waterlogging. In addition, fertilization can be combined with watering.

5. Topdressing requirements. Gerbera daisies are fertilizer-loving perennial flowers and have a high demand for fertilizer. The ratio of nitrogen, phosphorus and potassium in the fertilizer is 15:18:25. When topdressing, special attention should be paid to supplementing potassium fertilizer. Generally, apply 2.5 kg of potassium nitrate per mu, and 1.2 kg of ammonium nitrate or ammonium phosphate, once every 5-6 days in spring and autumn, and once every 10 days in winter and summer. If high temperatures or relatively low temperatures cause the plants to enter a semi-dormant state, stop fertilizing.

Propagation methods of Gerbera daisies

Propagation methods of Gerbera daisies: sowing method

Usually each Gerbera daisy flower can produce twenty or thirty seeds, which can be sown in spring or autumn. Spring sowing is in March and May, and autumn sowing is in September and October.

After the seeds mature, sow them in pots immediately, because the seeds have a short lifespan and are not suitable for long storage. It is best to carry out artificial supplementary pollination during the flowering period. The seed germination rate is relatively low, only about 50%. After sowing, cover with paper to prevent direct sunlight, keep the temperature at 20-25°C, and they will germinate within about two weeks.

Sixty to seventy days after sowing, when the seedlings have three or four true leaves, transplant them into flower pots or plant them in the open field. With proper cultivation, flowering can be seen in two to three months.

Propagation methods of Gerbera daisies: division method

Division propagation is mostly carried out in March and April.

First dig out the mother plant and divide it into several daughter plants. The daughter plants must have buds and roots, and should not be divided too small. When potting, do not plant too deep. It is best to plant them in holes in groups of two, which helps increase the number of flowers.

If drought is encountered during the growth period, water thoroughly. When watering, the center of the leaf rosette must not get wet and should be kept dry, otherwise the flower buds are prone to rot.

The optimum temperature for growth is 20-25°C. In winter, keep it above 12°C. With careful care, it can bloom all year round.

Regularly remove the excessive old outer leaves of vigorous growth, which is beneficial to the emergence of new leaves and new flower buds, and also helps ventilation, enabling it to bloom continuously.

During the growth period, sufficient sunlight is needed, so that the flower stalks are upright and the flower colors are vivid; if there is insufficient sunlight, the leaves become weak and yellow, the flower stalks become soft, thin and drooping, and the flowers are small and pale.

Propagation methods of Gerbera daisies: test-tube seedling method

In places with the necessary conditions, if test-tube seedling cultivation can be carried out, it will be more beneficial for accelerating the propagation and promotion of fine varieties.

At present, the Netherlands, the United States, Japan, West Germany and other countries use isolated leaf culture and have successfully mass-produced test-tube seedlings, then use soilless cultivation and put them into enterprise production of fresh flowers. The Shanghai Institute of Landscape Architecture in China also uses tissue culture to propagate large numbers of Gerbera daisies.

How do Gerbera daisies propagate? Propagation methods of Gerbera daisies (division/cutting/sowing)

Everyone should have heard of the Gerbera daisy. It has large flowers and many colors, and is a flower deeply loved by flower enthusiasts. As more and more people grow Gerbera daisies, mass propagation is imperative. So how do Gerbera daisies propagate? In general, there are three propagation methods for Gerbera daisies: division, cutting and sowing. Next, follow the editor to learn the specific operations in detail.

1. How do Gerbera daisies propagate? Division/cutting/sowing

As a green plant that can be grown indoors, the propagation methods of Gerbera daisies are no different from those of other plants. They are mainly divided into sexual propagation and asexual propagation. Asexual propagation is further divided into cutting and division; sexual propagation is the sowing method. So how do Gerbera daisies propagate? The editor will explain in detail how to do it specifically.

2. Three propagation methods of Gerbera daisies

(1) Division propagation of Gerbera daisies

The most common propagation method of Gerbera daisies. Generally speaking, every three years, when the plant becomes crowded, we can divide it once. Use a knife to divide the plant into multiple plants. Each plant must have one to several terminal buds and enough roots. Disinfect the wounds and pot them. The specific operations are as follows:

1. Division time

The division propagation time of Gerbera daisies is mostly in March and April, once every three years.

2. Division method

Dig out a healthy Gerbera daisy that has grown for three years and divide it into several daughter plants. The daughter plants must have one to several terminal buds and enough roots, and should not be divided too small. Then pot them separately. Be careful not to pot them too deep. It is best to plant them in holes in groups of two, which helps increase the number of flowers. After that, just care for them according to the cultivation methods for Gerbera daisies.

(2) Cutting propagation of Gerbera daisies

Cutting is the most common propagation method for plants, but for propagating Gerbera daisies, cutting is not practical because the operation is very inconvenient, so it is not recommended. Simply put, cutting means beheading, then using the large number of side shoots produced for cuttings. The specific operations are as follows:

Choose a robust Gerbera daisy mother plant, dig it out and remove the soil, then cut off the thick and large part of the rhizome, remove the leaves, cut the growing point, retain the root crown, and finally plant it in a planting box filled with peat for cultivation. Keep the room temperature at 22-24°C and the humidity at 70%-80%. After about 2 weeks, leaf axillary buds and adventitious buds will successively grow from the root crown, forming shoot cuttings. Compared with cuttings of other plants, this is frighteningly troublesome!

After the shoots grow 4-5 leaves, cut them off as cuttings, then insert them into a sand bed. After cutting, control the temperature at 25°C and keep the humidity at 80%-90%. They will root in about one month. After rooting, transplant them into nutrient pots and cultivate for one month, and small Gerbera daisy seedlings will form. One mother plant can be repeatedly cut for cuttings 3-4 times, and 10-20 cuttings can be collected. It is worth mentioning that new plants from cuttings in the same year can bloom in the same year.

(3) Seed propagation of Gerbera daisies

After Gerbera daisies bloom, seeds remain, so sowing can be used for propagation. It is worth mentioning that Gerbera daisies are self-sterile and must have at least two different Gerbera daisy plants pollinate each other to set seed. Therefore, when we use sowing to propagate Gerbera daisies, we usually go to a flower shop to buy seeds, and of course imported ones are preferable. The specific operations are as follows:

1. Sowing time

For seed propagation of Gerbera daisies, the first thing is to choose the right time. You can sow in spring or autumn. Spring sowing is in March and May, and autumn sowing is in September and October.

2. Sowing method

After buying the seeds, scatter them into the prepared potting soil. However, the germination rate of Gerbera daisy seeds is relatively low, only about 50%, so care after sowing is very important. After sowing, cover with paper to prevent direct sunlight, keep the temperature at 20-25°C, and they will germinate within about two weeks. After about sixty to seventy days, when the seedlings have 3-4 true leaves, transplant them into flower pots or plant them in the open field. With proper cultivation, flowering can be seen in 2-3 months.

In general, Gerbera daisies can be propagated by cutting, division and sowing, but the ones most suitable for the majority of flower enthusiasts are division and sowing. So flower enthusiasts who want to turn one pot of Gerbera daisies at home into many pots should quickly try it themselves. Even beginners have a very high probability of success. That is all the editor has to introduce about the propagation methods of Gerbera daisies, and I hope it can help everyone.