Mustard Greens Growing Guide
Growing Mustard Greens is easier than you think. This guide walks you through everything you need — from planting your first seed to harvesting.
At a Glance
Difficulty
Easy
Category
Vegetable
Sun Exposure
Full Sun
Frost Tolerance
Frost Hardy
Cold Hardiness
Survives to -9°C
Plant Family
Brassicaceae
Growing Season
Cool Season
Plant Lifecycle
Annual
Also grows well as
How to Start It
★ Recommended for beginners
Sow direct about 0.5 cm deep, thin to 20 cm (or sow thick for baby leaf). Spring and late-summer sowings both work; succession-sow for a steady supply.
Peppery leafy greens (the leaf form of mustard) eaten young in salads or cooked when older. Best in cool weather — heat makes them bolt and turn fiery. Note: this is distinct from the herb 'Mustard' grown mainly for seed.
When To Start
First Chance to Plant
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Last Chance to Plant
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When should you plant Mustard Greens?
Your planting dates depend on your local climate. Sign up and add your location to unlock personalized dates.
Your Mustard Greens Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
The Journey Ahead
Mustard Greens's Lifecycle
Seedling
Mature Plant
Seed Production
Step 1
Prepare Your Space
0.5 cm
Seeding Depth
20 cm
Plant Spacing
30 cm
Row Spacing
4
Plants / Sq Ft
Vertical Growing
No.
Succession Planting
Yes.
Good Companions
Bad Companions
Step 2
Planting & Sprouting
Expect sprouts in 5–10 days
Growing Tips
- 1Mustard greens are fast and forgiving in cool weather.
- 2Keep them watered for mild, tender leaves, harvest young, and sow again in autumn.
- 3A light frost actually sweetens them.
Seedling Phase
Step 3
Growth & Maturity
~45
Days to Maturity
40 cm
Mature Height
30 cm
Mature Width
Pests to Watch For
Diseases to Watch For
Mature Plant
Step 4
Harvesting
Harvest Window
45 days
When to Pick
Pick young leaves from ~3 weeks; milder when small and cool-grown
How to Harvest
- 1Pick outer leaves young for mild salad greens, or cut the whole plant for cooking greens.
- 2The bigger and warmer-grown they are, the hotter they get.
Step 5
Saving Seeds
How to Save Seeds
Let plants bolt and form pods, then collect the seed when dry — this is the mustard seed of the spice rack.
Seed Production
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