Pigeon pea nurse guild

Central species

• Pigeon pea

  Temporary nitrogen, biomass and light nurse shade

Supporting species

• Avocado

  Optional canopy being nursed (warm sites)

• Lemon

  Optional citrus being nursed

• Comfrey

  Lower mulch layer

• Nasturtium

  Groundcover between chops

Suggested layout

Fruit tree on the best-drained mound or bed; pigeon pea on the sunny windward or open flank; comfrey and nasturtium at ground level toward the drip line.

Why it works

• Fills the hungry establishment window for warm-climate trees
• Chop-and-drop returns nitrogen-rich mulch on site
• Naturally temporary in cooler snaps — less forever-weed risk than some nurses
• Slots into avocado, citrus and banana guilds without new species

Establishment sequence

1. Plant fruit trees first with correct drainage and mulch.
2. Sow or plant pigeon pea on the sunny flank — not against trunks.
3. Add comfrey at drip lines and nasturtium for cover.
4. Begin chopping when shrubs are leafy; drop mulch under trees off the collar.
5. Thin or remove as canopy shade increases.

Ongoing management

1. Chop before plants get woody and competitive.
2. Resow if winter kills stands and you still need nitrogen.
3. Stop replanting once fruit trees no longer need the nurse.

Common mistakes

• Planting pigeon pea in frost hollows and expecting a hedge
• Letting it shade fruiting wood for years
• Planting against trunks
• Skipping chops until stems are woody poles

Limitations and risks

• Winter kill outside warm pockets.
• Competition if left unmanaged beside young trees.