Key Points of Cutting Propagation of Goldenbud Flower

Golden bract is native to tropical America. Because of its long flowering period, its ornamental value is relatively high. Since it was introduced into China in the 1980s, it has been loved by many flower friends. Nowadays, golden bracts are often used to decorate flower beds in the south and potted flowers in greenhouses in the north.

Golden bract flower

Golden bracts are mainly propagated by cuttings and can be carried out in the growing season. The best cutting time is in June, taking about 5 cm tender shoots from the old plant, cutting in sand or shackle stone, moisturizing, rooting in about half a month, and rooting in a week if cuttage in June, or water cutting. When cutting seedlings on the pot, you can use 2 parts of pond mud, 1 part of blue bran ash, and add bean cake powder or chicken manure as base fertilizer, the seedlings can gradually let it see the sun after a week. After the survival of the seedlings, to carry out heart-picking, for the first time to leave 1-Mel 2-section heart-picking, wait for the new shoot to grow 3 pairs of leaves, and then leave a pair of leaves heart-picking, after stopping heart-picking, 2-Mel can blossom in 3 months. In order to prevent the Internode from being too long and the plant too high after stopping coring, 2000ppm dwarf or 500ppm paclobutrazol can be irrigated by root.

Golden bracts are commonly propagated by cuttings. It can be carried out all year round, preferably from June to July. Cuttings should choose sturdy, short Internode branches, remove the lower leaves, leave the top leaves, 8mur10cm long, cut in plain sand, shade and maintain humidity, take root after 2 weeks, cut in the same year, and blossom in the same year.

Cultivation techniques of Golden Bract Flower

Golden bract flower (Pachystachyslutea) yellow shrimp flower, Scutellaria mandshurica of the family Acanthaceae.

I. Overview:

Neat clumps of plants, green leaves, continuous summer flowering, bright yellow bracts, white flowers, shaped like golden pagodas, very lovely. It is not only a world-famous flower bed and potted flowers, but also one of the most common and widely used flowers in the international flower show.

Second, ecological characteristics:

Originally from Peru and Mexico. Like a warm, humid and sunny environment. Not resistant to cold, afraid of strong light exposure and drought. The suitable temperature for growth is 20-28 ℃, and the winter temperature is not lower than 12 ℃. The soil should be rich, loose and well-drained sandy loam.

3. Reproductive skills:

Cuttage propagation is commonly used, and spring and summer are the most suitable. Cut the sturdy branches, 10 cm long and 12 cm long, with 2 leaves at the top, internodes at the base, inserted into the sand bed, kept at 20: 24 ℃ at room temperature, and rooting after 15: 20 days.

4. Main points of cultivation:

To use fertile garden or cultivated soil for potted soil. When the seedling is 20 cm high, the heart is removed once, which makes it more branched. During the growing period, the basin soil remained moist, fertilized once every semimonthly, and applied phosphate fertilizer 2 times or Huiyou 20-20-20 general fertilizer at flowering stage. Lack of light or hot sun exposure can affect growth and flowering. The plants were pruned and put indoors for maintenance in winter. When the summer weather is dry, more water should be sprayed to the leaves. Change the basin every spring.

5. Disease and pest control:

It is mainly harmful to leaf spot disease, and 1000 times of carbendazim wettable powder is sprayed at the initial stage of the disease. Insect pests are harmful to shell insects and whitefly, which can be sprayed with 1000 times of 25% buprofezin EC.

The technique of having flowers in the four seasons of Golden Bract is scientific reproduction. Its propagation mainly uses the cutting method, can cut off the middle part of the branch with a pair of axillary buds 5 cm long, insert into the vermiculite or plain sand matrix, keep the substrate moist, about 3 weeks can take root and sprout, a month later can be pots.

The second is to match the soil with potted plants. Potted plants should choose slightly acidic soil with loose and fertile soil and good drainage and ventilation. Generally, rotten leaf soil can be used to add 1 bank 3 river sand, plus a small amount of bone powder to mix the nutritional soil; clay and sandy soil are not suitable for co-growth and development. After the seedling grows to 8 cm high, the coring is carried out to promote its branching, and then the second coring is carried out when the branch grows to about 6 cm-8 cm, then the plant shape is uniform and blossoms neatly, thus improving the ornamental value.

The third is to adjust the temperature and light. The optimum temperature for its growth is about 18 ℃-25 ℃, which is disadvantageous to its growth when it is more than 30 ℃ or less than 10 ℃. Low temperature can easily cause leaf shedding, root rot will be caused for a long time, and in severe cases, the plant will wither and die. Therefore, in order to keep it blooming in winter, the northern family should keep it in the greenhouse, keep the room temperature above 18 ℃ during the day and more than 10 ℃ at night, and give it proper fertilizer and water at the same time. Jinbao prefers the sun and is cultivated in the north. It should be maintained outdoors in spring and autumn, generally without shading, but it needs to be shaded properly around noon in summer. If exposed to the hot sun, it is easy to lead to leaf withering, leaf edge scorching. Put in the greenhouse where there is enough light in winter, the leaves are bright green and full of luster, the plant type is compact, the inflorescence is large, and the color is bright.

Fourth, reasonable fat and water. Golden bracts like to be moist, summer and dry seasons should often pay attention to improve the air humidity around the flowerpot in order to make the plant thrive. Golden bracts prefer fertilizer, and generally apply all-element liquid fertilizer every 7-10 days in the growing season, such as humic acid liquid fertilizer such as "Chunquan 883" and Huimanfeng, or urea + potassium dihydrogen phosphate sprayed with water; 0.2% potassium dihydrogen phosphate solution should be sprayed on the leaf surface during the budding period, which is beneficial to the colorful flowers. If the nutrient is insufficient, the plant growth is weak, the inflorescence is small, and the flowering is few; if the nitrogen fertilizer is applied too much, the stem node is slender, the flower quantity is reduced, the branches and leaves of golden bracts are luxuriant, the inflorescence is large, there are many flowers, and more water is needed, so the basin soil should always be kept moist, but stagnant water in the basin should be avoided. During the period of flower bud differentiation, attention should be paid to properly controlling watering and weakening plant vegetative growth so as to facilitate nutrient accumulation and promote flower bud differentiation.

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