The sowing and propagation of Coreopsis are generally carried out in spring and autumn, in March of spring, in June and July, it can blossom, in September of autumn, in November, in May of next year.
Choose the right soil, carry on sowing, keep the temperature above 20 ℃, about half a month can germinate. Maintenance for a period of time, when the seedlings grow to 4 - 5 leaves, they can be transplanted, when the seedlings survive, normal maintenance can
In August to September of each year, the mature head inflorescences of Coreopsis are cut off, dried and placed in a dry and cool place, the sundries are removed, and the seeds are selected. The selected seeds can be placed in a dry, dark and well ventilated place for curing. The temperature can be kept at 5 ℃ - 10 ℃ for about a year.
Blackheart chrysanthemum can also be propagated in separate plants, which can be carried out in spring and autumn. Ramets are usually the old perennial plants for ramets.
Cuttage Propagation is the third way of propagation. Cuttage Propagation is carried out in spring or autumn. Generally, the new buds sprouted from the root of Coreopsis nigra are selected as the cutting Cymbidium.
The cuttage of Coreopsis in spring can be carried out when the bud of Coreopsis grows to about 15cm. Autumn cuttings of Coreopsis can be carried out after the flowering period of Coreopsis
The more commonly used method of propagation is sowing.
