Cultivation

Open Field — China Aster

Callistephus chinensis (L.) Nees

Growing China aster in open field conditions requires strict adherence to crop rotation for Fusarium wilt prevention and consideration of the plant's photoperiodic response for the development of marketable flower stems.

In the reference 15 varieties crop China aster, where this is mentioned in the description.

When cultivating China aster in the open field, spatial isolation and adherence to a 5–6 year crop rotation interval are critically important conditions. This is necessary due to the crop's high susceptibility to soil-borne pathogens, primarily Fusarium wilt.

The plant is sensitive to day length: exposure to over 13–14 hours of light at early development stages accelerates flowering and stem growth. To obtain high-quality cut flowers, planting density is regulated to 20–30 cm; protective netting is often used against wind, and mulching is applied to accelerate vegetative growth.

In the open field, the aster is prone to infestation by leafhoppers and thrips, which act as vectors for the aster yellows virus, requiring specific protective measures such as the use of protective nets. Seedlings are transplanted after the soil has warmed, as the crop is a cold-hardy annual.

General information about the subject — on the page Open field.

Sources8

Varieties of China aster mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.