Amaranthaceae — Beet family

Shared risks

• leaf miner (Pegomya)
• Cercospora leaf spot
• downy mildew

Named risks, not an arbitrary score: these are the organisms that carry over in soil, debris or volunteers.

Rotation guidance

Leave 2 years before returning any beet family member to the same bed. Rotation concerns previous seasons in a bed; it is separate from which plants grow together now.

• Beet and chard are the same species (Beta vulgaris) and share every pest; spinach shares leaf miners.

Sources

• Vegetable Growing Guides (2024)

Exceptions and small-garden notes

Short crops (radish, arugula, baby leaves) still count as occupancy for the family. In a garden with one or two beds, strict rotation is impossible; instead, alternate families within a bed by half, remove crop debris, choose resistant cultivars and keep a bed history so the planner can warn you.

Other families: Solanaceae · Brassicaceae · Fabaceae · Cucurbitaceae · Apiaceae · Asteraceae · Amaryllidaceae · Lamiaceae · Poaceae · Rosaceae · Other families