Four - Nine Early Choi Sum
Description of the variety
It is a traditional Choi Sum variety with early maturity and high yield. Upright plant style. The leaves are oval and smooth. The stem and leaves are fresh green. It can be harvested 30 - 40 days after sowing. It has relatively good heat tolerance. Absolutely high eating quality.
Planting Guidelines
It loves the adequate soil fertility and water. Suitable for planting in late Spring and Summer. It can tolerate relatively high temperature and humidity.
Additional Remarks
Diseases Information
Careful control of aphids and Diamondback moth
Planting Timetable
| MONTH | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC |
| SOWING | ||||||||||||
| TRANSPLANTING | ||||||||||||
| HARVEST |
The above schedule is based on the Sydney lowland area

