Moisture range
35–55%
Days to maturity
25–40
Light
Part sun
Growing Degree Units
400 · base 40°F
When to plant mustard greens in your zone
Indoor-start, transplant and harvest dates calibrated to your climate.
Growing notes
Mustard greens are semi-hardy (can withstand light frosts, but not heavy frosts or freezing) and are the least heat or cold-tolerant of the leafy greens.
Harvest signs
Leaf yellowing and browning is a sign they are over-mature and should be composted
▶Planting reference— spacing, light
Companions & antagonists
Plant near:LettuceRadish
Keep apart from:Beets
Tip: Fast and spicy — excellent fall crop.
Common questions
How much water does mustard greens need?
Mustard Greens is water-sensitive — shallow roots and a steady thirst. Keep soil moisture in roughly the 35–55% range and don't let it dry out fully, or growth stalls and leafy crops turn bitter.
Can I grow mustard greens in a raised bed or container?
Yes — mustard greens does well in raised beds and is happy in a decent-sized container too, as long as drainage is good.
Does mustard greens come back every year?
No — mustard greens is an annual. It completes its life in one season, so you replant it each year.