Choy sum grow and care – 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

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How to grow 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?

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 indoor as houseplant?

Growing is also possible in a planter /flowerpot / containers:

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


Blooming Seasons
  • Spring flowers
  • Summer flowers
Edible Parts
  • Edible Bud
  • Edible flowers
  • Edible leaves
Culinary uses
  • Cooked
  • Eaten raw
  • Leafy vegetables
  • Salad
  • Stuffed or Wrapped
Flower colors
  • Yellow flower
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
Harvest Season
  • Autumn Harvest
  • Spring Harvest
  • Summer Harvest
  • Winter harvest
Plant growing speed
  • Fast growing plants
Plant life-form
  • Annual plant
  • Leaf plant
Plant Uses
  • Colored leaves
  • Edible plants
Planting Season
  • Autumn Planting
  • Spring Planting
  • Winter planting
Plants sun exposure
  • Full sun Plants
  • Part shade Plants
Watering plants
  • Big amount of water
  • Regularly water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 2
  • Hardiness zone 3
  • Hardiness zone 4
  • Hardiness zone 6
  • Hardiness zone 7
  • Hardiness zone 8
  • Hardiness zone 9