How to Grow Mizuna: Planting, Spacing, Care & Harvest

Quick answer

Early spring or fall sowing (PSU/UC/Clemson). Handles light frost. — seasonal wording only.

Mizuna at a glance

PlantPenn State Extension: “Mizuna is both tolerant of light frosts and very slow to bolt. This makes mizuna an ideal vegetable for early spring or fall planting.”
SunCool moist brassica culture; full sun in cool weather, light shade as days warm.
SpacingSow shallow; thin for cut-and-come-again leaves.
Days to harvestFast leafy harvest; slow to bolt (PSU)
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Planting dates for your ZIP: the ZIP planting planner counts each window from your local frost dates.

Organic pests and diseases: see also organic pest control. Use any product as the label directs.

Mizuna greens
Mizuna (Brassica rapa). Photo: Masahiko Satoh, Wikimedia Commons, CC BY 2.0 (resized).

Planting timing

Penn State Extension: “Mizuna is both tolerant of light frosts and very slow to bolt. This makes mizuna an ideal vegetable for early spring or fall planting.” Ideal germination 55° to 75°F (as low as about 40°F). (PSU mizuna) UC Sonoma Master Gardeners Asian greens: heat and cold tolerant (to 40°F); sow ¼–½ in deep. (UC Sonoma Asian greens) Clemson Chinese vegetables culture: cool-season Asian greens in early spring or fall. (Clemson HGIC Chinese vegetables) Prefer fall crops where spring heat causes bolting. — seasonal wording only.

Depth and spacing

Sow shallow; thin for cut-and-come-again leaves. Treat like other mild mustard greens for spacing.

Sun, soil and water

Cool moist brassica culture; full sun in cool weather, light shade as days warm.

Care

Succession sow for continuous greens. Row covers help flea beetles.

Harvest

Cut outer leaves or harvest whole young plants; regrows for multiple cuttings.

Pests and diseases

Flea beetles and other brassica pests — row cover cultural control.

Related: tatsoi · bok choy · ZIP planner

Frequently asked questions

When do I sow?

Early spring or fall (PSU/UC/Clemson).

Will frost kill it?

Handles light frost; prefer cool weather.

More grow guides: All grow guides

Sources