News

Cosmos Seed

Cosmos

Morphological Characteristics

Cosmos is an annual or perennial herb that grows 1-2 meters tall. Roots fusiform, multifibrous, or adventitious near the base of the stem. Stem glabrous or slightly puberulent. Leaves are doubly pinnate, lobes linear or filamentous. Inflorescence solitary, 3-6 cm diameter; The peduncle is 6-18 cm long.

Tongue shaped flowers purplish red, pink or white; Tongue elliptically obovate, 2-3 cm long, 1.2-1.8 cm wide, with 3-5 obtuse teeth; Tubular flowers yellow, 6-8 mm long, short tube, upper cylindrical, with needle-like lobes; Style appendage with short apical.

Achenes dark purple, 8-12 mm long, glabrous, with a long upper beak and 2-3 spines. Flowering period from June to August, fruit period from September to October.

Growth Habit

Light-loving plants, resistant to poor soil, avoid excessive fertility of soil, avoid heat, avoid water, not adapted to high temperature in summer, not cold. Loose, fertile and well-drained loam is required.

Distribution Range

Originally from Mexico, it is widely cultivated in China and often grows by itself on roadsides, fields and banks. Yunnan and western Sichuan have a large area of naturalization, up to 2700 meters above sea level. Its scientific name is Cosmos, meaning universe, harmony, order, honor, good deeds and other positive meanings in Greek.

Planting Method

The cultivation of cosmos can be sown or propagated by cuttings.

Cosmos are propagated from seeds. Generally early spring sowing, May to June flowering, August to September climate is hot, more rainy, less flowering. After the fall, the flowers continue to bloom until the frost. If sown in July or August, flowers can be produced in October, and the plants are short and neat.

The seeds of cosmos have the ability of self-sowing, once planted, there will be a large number of self-sowing seedlings; With a little protection, it can bloom as usual.

During the growth period, it is feasible to propagate cuttings, cut 15cm of healthy branches at the bottom of the node, and insert them in sandy loam soil, under proper shade and maintain humidity, and roots can be taken in 5 to 6 days.

Cultivation Technique

1) Transplanting: Seedlings with 4 to 5 true leaves transplanting, and core removal. If the planting ground is applied with base fertilizer, there is no need to fertilize the growing period, if the soil is too fertilized, the branches and leaves are easy to grow, and the flowering is reduced.

 2) Light: Cosmos strong, sunshine, drought resistance, soil requirements are not strict, but can not water.\

 3) Fertilization: the seedling height of 5 cm is transplanted, and the leaves are 7-8. If the planting ground is applied with base fertilizer, there is no need to fertilize the growing period, if the soil is too fertilized, the branches and leaves are easy to grow, and the flowering is reduced.

 4) Abstract: Persian chrysanthemum is a short-day plant, spring seedlings often have fewer leaves and flowers, and summer seedlings are short, neat and flowering. It grows rapidly and can be cored several times to increase branching.

 5) Management: The requirements of fertilizer and water are not strict, and the decomposed urine is applied with 5 times the water every 10 days during the growth period. High and medium-sized varieties need to set pillars before flowers to prevent wind disasters; It grows rapidly and can be cored several times to increase branching. Red spider hazards are easy to occur in hot weather, and should be prevented as soon as possible.

 6) Prevent lodging: ① Sowing in July to August. The cosmos planted during this period will be able to flower in October, and the plants are short and neat.

② Remove the heart. In the growing period of the cosmos, it is necessary to carry out several heart-plucking, which on the one hand can dwarf the whole plant, and on the other hand can promote the germination of branches to increase the number of flowers.

③ Less fertilizer and watering. Too much fertilizer water is easy to cause the plant to grow and produce lodging, and flowering is rare.

 7)Disease and Insect Control

Its main pests and diseases often leaf spot, powdery mildew harm. Red spider hazards are easy to occur in hot weather, and should be prevented as soon as possible.

Control methods appropriately increase the application of phosphate and potassium fertilizer, pay attention to ventilation, light transmission; Cut off the serious strain or the serious part in time, bury or burn deeply to eliminate the source of bacteria; If necessary, at the beginning of the disease spray 15% powder rust rather wet powder 1500 times the liquid.

Primary value

1) Ornamental value: Persian chrysanthemum plant shape tall, elegant leaf shape, rich color, pink, white, crimson and other colors, suitable for arranging flower mirrors, in the edge of the grass, around the trees and roadside planting landscaping, quite wild interest. Double petal varieties can be used as cut flower materials. Suitable for flower background material, can also be planted on the edge of the hedge, rock, cliff slope, tree altar or house

2) Edible value: the effect and function of Qiu Ying clear heat detoxification, wet Qiu Ying main treatment of dysentery, eye red swelling pain.

3) Medicinal value: inflorescence, seed or whole grass has the effect of clearing heat and detoxifying, clearing eyes and dampness.

For more information, contact us directly :

admin@high-key.cn

86 18055849900