Planting guide

When to plant or sow Spinach?

Best month and methodSpinacia oleracea

Plant or sow your spinach in March, April, August and September — the optimal month is usually August.

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The next planting window is August.

Spinach (Spinacia oleracea)
Foto: Rasbak / Wikimedia Commons / CC BY-SA 3.0

Spacing

Distance between plants

15 cm

For 1 m²

44 plants

For an X m² border, calculate: X × 44 plants.

Step by step: plant or sow spinach

Spinach thrives in a position with full sun or partial shade, though in warmer months light shade can help prevent premature bolting. It tolerates a range of soils but performs best in moisture-retentive loam or clay soil enriched with organic matter. Before sowing, dig in well-rotted compost or manure to improve structure and fertility, and ensure the soil drains reasonably well to avoid waterlogging. Sow spinach directly outdoors from March to April for a spring and early summer harvest, or from August to September for an autumn and winter crop. Spinach does not transplant well, so avoid starting it in pots unless absolutely necessary. Sow seeds thinly in drills about 2 cm deep, spacing rows roughly 30 cm apart. Once seedlings emerge and develop their first true leaves, thin them to a final spacing of about 15 cm between plants. You can use the thinnings in salads. Water the drills gently after sowing to settle the soil around the seeds, and keep the surface moist until germination, which typically takes seven to fourteen days depending on temperature. Spring sowings germinate faster in warming soil, while late-summer sowings benefit from cooler, damper conditions. After thinning, water again to help the remaining plants establish. Apply a light mulch of compost around young plants to retain moisture and suppress weeds, but keep it clear of the stems to reduce the risk of rot. Spinach grows quickly and will be ready to harvest within six to eight weeks of sowing.

More about spinach

Also plant in March, April, August and September