Start indoors or direct sow?

Direct sow turnips where they will grow because their roots can become misshapen after transplanting. They germinate quickly and do not need an indoor head start.

When to start Turnips seeds

Direct sow 2 to 4 weeks before the last expected spring frost for a spring crop. Sow again in late summer, often 6 to 10 weeks before the first fall frost, for a sweeter fall crop.

How to sow the seeds

Sow seeds 1/4 to 1/2 inch deep in loose, stone-free garden soil amended with compost if needed. Plant in rows or bands, then gently firm the soil and water with a fine spray.

Germination

Seeds commonly germinate in 3 to 10 days. Soil temperatures around 50 to 75 F and even moisture encourage prompt emergence.

Seedling care

Keep the seedbed consistently moist until seedlings emerge, then water deeply when the upper soil begins to dry. Thin seedlings early to the spacing listed for the variety, keep weeds down, and avoid constantly saturated soil that can encourage disease.

Transplanting & hardening off

Direct sown, so no transplanting is needed. Avoid moving seedlings, since disturbing the young taproot can reduce root quality.

Tips

Sow small batches every 1 to 2 weeks in spring for a longer harvest. Thin on time, because crowded plants produce small roots.

General seed-starting guidance for US home gardens; timing depends on your local frost dates and variety. Page updated Aug 4, 2026.