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Vegetable

Sweet pepper

Capsicum annuum

Botanical family: Solanaceae

A sweet, mild nightshade at maturity. Sow in the warmth (February-March), plant out after the Ice Saints, full sun. Fruits harvested green or coloured (red, yellow, orange), sweeter at full ripeness. Thick, crunchy flesh.

Plate: Elizabeth Blackwell, A Curious Herbal (1737) · Public domain · source
Exposure

Full sun

Soil

Rich, well-drained

Watering

Regular without waterlogging

Hardiness

Frost-tender: a perennial in warm climates, grown as an annual in ours; it needs nights above 12 °C

Frost-tender in your zone

Pollination

Mostly self-pollinating; insects sometimes cross the flowers

One plant is enough for a crop

Role in permaculture

A fruiting nightshade, hungry for both warmth and fertility: it calls for rich soil and a well-exposed bed among the summer crops. Basil, a classic companion to both tomato and pepper, is reputed to keep certain pests away through its aromatic compounds, while the French marigold, in a dedicated, dense planting, reduces soil nematodes (see its own entry) and draws in beneficial insects. Its flowers are visited by bees and by hoverflies, whose larvae devour aphids. Like any nightshade, it belongs in a rotation that avoids following tomato or potato, so as not to concentrate the family's shared soil diseases (verticillium wilt, for instance). Finally, it is kept away from fennel, reputed to hinder its neighbours.

Good companions

Fix nitrogen from the air (legumes)

Suppress some soil nematodes (dense planting, before the crop)

Aromatic: scent said to confuse pests

Traditional companion planting (benefit not demonstrated)

Poor companions

Allelopathy, reputed or observed: may slow some neighbours

Insects attracted or useful

Known pests & diseases

Pests and diseases that commonly affect this plant, tap to learn how to recognise and manage them.

Seasons & availability

Sweet peppers and chillies: July to October.

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In seasonStored harvestAll year

Available: July, August, September, October.

Guidance for the oceanic / temperate climate; it may vary with your region, altitude, exposure and growing method.

Sources

  • RHS, « How to Grow Sweet peppers » (rhs.org.uk/vegetables/peppers/grow-your-own)
  • Le Biau Germe, « Poivrons - Piments » (biaugerme.com/semences/potageres/legumes-fruit/poivrons-piments)

Nutritional & medicinal properties

For educational purposes. Not a substitute for medical advice. Effects depend on the form, the dose and personal context.

Precautions & contraindications

Hot chillies can irritate mucous membranes and digestion.

Family behaviour: Solanaceae

In general, Solanaceae are very hungry for nitrogen and prone to blight (Phytophthora infestans). They like heat, sun and a rich soil.

Understanding families means learning one rule per family rather than every pairing one by one. Learn more →

Species & varieties

The best-known species and varieties in France.

Common varieties

Key takeaways

  • • Prefers full sun exposure.
  • • Ideal soil: rich, well-drained.
  • • Classic companion: Basil.
  • • Keep away from: Fennel.

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