Choy sum growing leaf plant of the species Brassica rapa the Chinensis group also known as Choi sum, Choy sum annual but can be perennial plant, grow in temperate, cold mediterranean or cold subtropical climate and growing in hardiness zone 2-10.
Leaves green ovate shape grow on 5-10 cm stem
Choy sum buds
Buds and flowers edible the color yellow, the flowers small grows on inflorescence
Choy sum for sale – Seeds or Plants to Buy
Requirements for Choy sum growing and care:
Cold weather or else become bitter, slightly acid, heavy soil
What is the best way to start growing?
Plant / Seedling / Seed
Is it necessary to use vegetative reproduction?
No
Difficulties or problems when growing:
In warm climate the leaves become bitter
Planting season:
Autumn – winter – frost free area / Autumn, winter, spring – temperate climate
Pests and diseases:
Pieris (butterfly), prodenia (Spodoptera), slugs, aphids
Pruning season:
All season
How to prune:
Dead or infected leaves
Size of the plant?
20-40 cm, 8-16 inches
Growth speed in optimal condition:
Fast growing
Water requirement:
Average amount of water / Big amount of water
Light conditions in optimal condition for growing:
Cold climate Full Sun /warmer climate Half Shade
Is it possible to grow as houseplant?
No
Growing is also possible in a planter /flowerpot / containers:
Yes
Blooming information
Bloom season:
Spring / Summer
General information about the flower
Yellow flowers the flowers small grow on inflorescence
Thinning the bloom:
Possible to thinning but the flower and the stem also edible
Pollination is done by:
Bees, self-pollination
Edible leaves
Leaves harvesting season
In cold area winter-spring-summer in frost free autumn-winter-spring
How to harvest the leaves?
Two possibilities to trim the leaf separate or trim all the leaves of the plant in the same time
Information about leaves:
Green leaves ovate shape grow on 5-10 cm stem
Uses of Choy sum leaves:
Salad, eat raw, cooked, stir fry, staffed
Scientific name:
Brassica rapa var. parachinensis