When does the autumn chrysanthemum open?
Autumn chrysanthemum, also known as Chrysanthemum, Jiuhua, Huanghua, Emperor Flower, has a wide range of styles, more than a thousand varieties, is one of the common ornamental flowers. When does it open? How do you plant it?
When does the autumn chrysanthemum open?
The florescence of autumn chrysanthemum is July, and most of the more famous varieties bloom around September of the lunar calendar (November of the solar calendar). However, due to the different cultivation methods, varieties and other factors, the opening time of autumn chrysanthemum is also different.
How to plant autumn chrysanthemum?
Autumn chrysanthemum can be planted by cutting, ramet, grafting, sowing and tissue culture.
1. Sowing seeds
Autumn chrysanthemum is suitable for sowing from February to April, and can blossom in the same year after sowing.
two。 Grafting
Autumn chrysanthemum can be grafted with Artemisia annua or Artemisia annua as rootstock. Artemisia seed in late autumn, sown in greenhouse in winter, or raised seedlings in hotbed in March, moved to pot or planted in field when seedling height was 3-4 cm in late April, and spliced in sunny day from May to June.
3. Ramet
The ramet is generally dug up before and after the Qingming Festival, separated according to the natural shape of the root, and planted in the basin.
4. Cuttage
Cutting can be divided into bud cutting, tender branch cutting and leaf bud cutting. Bud insertion is carried out in autumn and winter, shoot insertion is carried out more than April-May, leaf bud insertion is generally rarely used, and it is only used to breed rare varieties.
5. Tissue culture
Tissue culture should be carried out in the culture room with light intensity of 3000-4000 lux for 8 hours a day. After 1-2 months of culture, seedlings can be induced.
In the process of breeding autumn chrysanthemum, they are vulnerable to diseases such as brown spot, black spot, powdery mildew, brown rust, root rot, and insect pests such as aphids, red spiders, inchworms, chrysanthemum tigers and grubs.
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