Tatsoi Growing Guide
Tatsoi At a Glance
Difficulty
Easy
Category
Vegetable
Sun Exposure
Full Sun
Frost Tolerance
Frost Hardy
Cold Hardiness
Survives to -12°C
Plant Family
Brassicaceae
Growing Season
Cool Season
Plant Lifecycle
Annual
How to Start It
★ Recommended for beginners
Sow direct about 0.5 cm deep, thinning to 15 cm (or sow thickly for baby leaf). Best in spring and especially autumn — it's happiest as the weather cools.
A spoon-leaved Asian green that forms a flat rosette and is one of the most cold-tolerant of all. It'll keep going under snow. Mild and tender raw or lightly cooked. Loves cool weather; bolts in heat.
When To Start
Tatsoi likes cool weather. Sow it in early spring, as soon as the ground can be worked.
We do not have exact sowing dates for this one yet.
When should you plant Tatsoi?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Tatsoi Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
Your Tatsoi Calendar
Set your location to turn these into exact dates and reminders.
Sow tatsoi (late summer/autumn is best)
60 days before your first frost
Start picking tatsoi
About 30 days after you plant it
The Journey Ahead
Tatsoi's Lifecycle
Seedling
Mature Plant
Seed Production
Step 2
Planting & Sprouting
Expect sprouts in 4–8 days
Growing Tips
- 1Tatsoi is a star of the cool season: sow it for autumn and winter pickings, keep it watered, and net against flea beetles.
- 2It's about as hardy as leafy greens get.
Seedling Phase
Step 3
Growth & Maturity
~45
Days to Maturity
20 cm
Mature Height
25 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
Harvest Window
45 days
When to Pick
Pick outer leaves or cut whole rosettes; very frost-tolerant
How to Harvest
- 1Pick outer leaves as you need them, or cut the whole rosette and let it regrow.
- 2It sweetens after frost and stays harvestable far into the cold.
Step 5
Saving Seeds
How to Save Seeds
Allow plants to bolt and form pods; collect dry seed. Crosses with other brassicas.
Seed Production
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This page is free and stays free. An account adds the one thing a guide cannot do on its own: your own frost dates, so it tells you the weeks to sow tatsoi where you live.
