Spinazie

Spinacia oleracea

Engels: Spinach

vegetableAmaranthaceaeEetbaar

Spinazie (Spinacia oleracea) is a edible vegetable from the Amaranthaceae family that grows up to 30cm tall. This plant thrives in partial shade to full sun and requires low maintenance.

Hoogte

15–30 cm

Breedte

10–20 cm

Zonligging

partial shade, full sun

Waterbehoefte

moderate

Grondsoort

loam, clay soil

Onderhoud

low maintenance

Verzorgingskalender

Taak	Jan	Feb	Mrt	Apr	Mei	Jun	Jul	Aug	Sep	Okt	Nov	Dec
🌱Planten
💧Bemesten
🍎Oogsten

Care tips

Planting

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.

Pruning

Spinach does not require pruning in the traditional sense, as it is a leafy vegetable grown for harvest rather than ornamental shape or flowering. The plant produces a rosette of leaves from a central growing point, and your main task is managing the harvest rather than cutting back woody growth. Begin harvesting as soon as the leaves are large enough to use, typically when they reach 5–8 cm in length. You can either pick individual outer leaves, working around the plant and leaving the central growing point intact, or cut the entire rosette about 2–3 cm above soil level. The pick-and-come-again method—taking a few outer leaves at a time—encourages the plant to produce new growth and extends your harvest over several weeks. Use a sharp knife or scissors to make clean cuts and avoid tearing, which can introduce disease. Harvest regularly throughout the cropping period: April to June for spring sowings, and September to November for autumn sowings. In mild winters, late-sown spinach may continue producing into December or even January. Remove any leaves that begin to yellow or show signs of disease promptly to keep plants healthy and productive. If flower stalks (bolting) appear, especially during warm weather or long days, remove the entire plant, as the leaves become bitter once bolting starts and the plant will not recover for further cropping. Bolting is more common in spring-sown crops during hot spells, so timely harvesting and adequate watering help delay it.

Maintenance

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.