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Sweetpeas

Lathyrus odoratus

vegetable

Sweetpeas are climbing or bushy annuals prized for their fragrant, colorful flowers and edible young pods. They are cool-season crops that bloom prolifically when temperatures remain moderate and are excellent for cutting, borders, and vertical structures. The dried seeds are toxic but young pods are edible.

Sweetpeas

Common Problems

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Care Guide

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Light
Full sun (6–8 hours daily) essential for flowering and pod production. Some afternoon shade tolerated in hot climates.
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Water
Water regularly and deeply; 1–1.5 inches per week. Keep soil consistently moist but not waterlogged. Mulch to retain moisture and keep roots cool.
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Soil
Well-draining, fertile loam with pH 6.0–7.0. Enrich with compost or aged manure before planting. Good structure supports vigorous growth and deep root development.
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Fertiliser
Apply balanced fertilizer (5–10–10) at planting and every 2–3 weeks during growing season. Avoid excess nitrogen which promotes foliage over flowers.
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Temperature
Cool-season crop; thrives in temperatures 55–70°F. Plant in fall in warm regions or early spring in cool zones. Heat causes reduced flowering and early maturity.
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Humidity
Moderate humidity preferred. Good air circulation essential to prevent fungal diseases; space plants adequately.

Toxicity

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Seeds and mature pods contain lathyrogens (toxic alkaloids). Young pods are edible but mature seeds are poisonous if ingested. Keep away from children and pets.

Common Diseases

Common Pests

Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Sweetpeas Care Guide — Lathyrus odoratus | GreenScout