Botanical family
Amaryllidaceae
8 plants
The onion family. Garlic, onion, leek, chives, shallot — all belong here. Their sulphur compounds repel many pests (carrot fly, aphids), which is why they're top companion-planting partners for carrots and rose plantings.
Crop rotation
Allium (garlic, onion, leek) pull little nitrogen but leave sulphur compounds that protect many follow-ups. Classic: carrots or lettuce after onions. Allium-family break: 3 years.
Nutrient distribution
How many plants in this family are how hungry for nutrients. Raised-bed soil exhausts quickly after heavy feeders — follow with nitrogen-fixers.
- Medium feeders8
