Harvesting Spinach
When and how — Spinacia oleracea
Harvest spinach in April, May, June, September, October and November — the main harvest usually falls in September.
You're in the harvest season right now — check weekly for ripeness.

How to harvest spinach
Spinach has a moderate water need and performs best with consistent moisture, especially during dry spells. Water regularly to keep the soil evenly moist but not waterlogged, as drought stress triggers premature bolting. In spring and early summer, water two to three times per week if rainfall is scarce; autumn and winter crops generally need less frequent watering as temperatures drop and rainfall increases. Water at the base of plants in the morning to reduce the risk of fungal diseases. Feed spinach lightly in April, particularly for spring-sown crops. Apply a balanced general-purpose fertiliser or a nitrogen-rich feed to encourage lush leaf growth, but avoid overfeeding, which can lead to excessive soft growth prone to pests and disease. Autumn-sown spinach usually requires no additional feeding if the soil was well prepared at planting. A top-dressing of compost in early spring can support overwintered plants as growth resumes. Spinach is hardy to zone 3a and will tolerate frost, making it ideal for autumn and winter cropping in temperate Europe. Protect late sowings with cloches or fleece during severe cold to extend the harvest and improve leaf quality. Mulch around plants with a thin layer of compost or straw to conserve moisture and suppress weeds, but keep mulch away from the leaf rosettes. Common pests include aphids, which cluster on young leaves, and slugs, which can devastate seedlings. Check plants regularly and remove pests by hand or use organic controls. Downy mildew, appearing as yellow patches on leaves with grey mould beneath, is the most frequent disease, especially in damp conditions. Ensure good spacing for airflow, avoid overhead watering, and remove affected leaves promptly.