How to Grow Mustard Greens
On this page
Mustard greens are ready to harvest 25–50 days after planting.
Mustard greens (Brassica juncea) — annual.
3 diseases and 5 pests are documented for this crop, so a fair share of growing it well is prevention.
The short answer
- Ready in
- 25–50 days
- Site
- 6+ hours of sun, soil pH 6–6.5
- Biggest risk
- Brassica downy mildew
Core growing advice on this page is checked against named horticultural sources — see References.
Mustard Greens (Brassica juncea)
Also known as: brown mustard, Chinese mustard · 11 sources cited · Verified
Quick Facts
At a Glance
Diseases
Pests
Soil & Growing Conditions
Growth Stages
Harvest & Storage
Plan your Mustard Greens planting
Timing for Mustard Greens follows soil temperature and frost, not the calendar date. The Global vegetable planting calendar explains the method. To work out where it fits in your beds, sketch your plot in the free Garden Layout Planner.
Growing Mustard Greens in another region
Sowing dates, frost timing and local advice differ by country. Use the guide for where you garden.
Sources
-
Sow 1/4-1/2in deep, in rows 18-24in apart, at 15 seeds per foot for bunching varieties. Sow from early spring to late summer for a continuous supply. Cut when greens reach full size (12-18in). Control flea beetles with floating row covers applied at sowing.
These 2 sources are specific to this region. The full list of 11 sources behind this guide (Clemson Cooperative Extension, FAO EcoCrop, Johnny's Selected Seeds and others) is in the references of our UK guide to mustard greens; they describe the plant itself, which is the same wherever it grows.
Frequently Asked Questions
How long do mustard greens take to grow?
Typically 25–50 days, depending on cultivar and growing conditions.
What soil pH do mustard greens need?
A pH of about 6–6.5. That span reflects genuine variation between the authorities we cite rather than a single agreed figure — the References section lists each source's exact range.
What problems affect mustard greens?
Our data links 3 diseases and 5 pests to this crop. See the sections above for each one and how to manage it.
Plan next season before the problems start
This page gives you the thresholds; the planner turns them into your own calendar. It works from what you can observe and measure in your garden rather than from dates written for somebody else’s latitude.
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How this guide is put together
The growing data on this page — sowing windows, pests, diseases, soil and site requirements — comes from named horticultural sources, listed in References below, checked against international horticultural research and extension sources. An automated pipeline assembles that verified data into the page you're reading: it selects which facts to lead with and builds the surrounding prose and layout. It does not invent a date, a source or a number — where a verified value for a field isn't available, the page leaves it out rather than guessing. A person reviews and publishes each page; nothing goes live unverified.
Related Problem Guides
Last verified 2026-09-02
Related guides
More from the same group (brassicas & mustards):
Where To Go From Here
Take this crop from reading into a written plan for your own beds.
Keep going
Plan the next step
Use the printable SoilCommander planner for your region to turn this guide into sowing dates, bed layouts and weekly garden tasks.