Role in the design
What this layer contributes
Rhizosphere plants can produce underground crops, store energy, occupy soil niches, and influence soil structure. Harvest method and root competition matter as much as visible spacing.
Loading
Loading
The below-ground layer
The rhizosphere layer focuses on useful roots, tubers, bulbs, and other below-ground plant structures. Its working space overlaps physically with every layer above it.
Role in the design
Rhizosphere plants can produce underground crops, store energy, occupy soil niches, and influence soil structure. Harvest method and root competition matter as much as visible spacing.
Living library
24 records in this layer
Biennial
Beta vulgaris
USDA zones 2–11
Perennial
Pseudopodospermum hispanicum
USDA zones 5–9
Biennial
Arctium minus
USDA zones 3–10
Biennial
Apium graveolens var rapaceum
USDA zones 3–9
Perennial
Stachys affinis
USDA zones 4–8
Annual
Raphanus sativus var longipinnatus
USDA zones 2–11