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Four - Nine Choi Sum (4 - 9 菜心）
View Specification
Description of the variety
This Choi Sum has maturity of 30 - 40 days.
It has some heat tolerance with limited cold tolerance.
The stem and leaves are fresh green color. Good uniformity.
Consumption of leaves, stems and flowers recommended.
Planting Guidelines
It can be planted from May to Oct in the Southern China.
Additional Remarks
It is sensitive to cold temperature.
Below temp of 20 deg Celsius, it bolts earlier.
Diseases Information
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 Hong Kong area