plant

Tuberous pea

Lathyrus tuberosus

Updated 8 Jul 2026 · AI-parsed entry

Tuberous pea (Lathyrus tuberosus) — a plant, for Full sun, Medium water.

What it needs & gives back

↓ Needs

Sunlightfull sun to partial shade
Watermedium

↑ Gives back

Biomassmedium

Through the year

Emergence

Emergence of shoots in spring after the last frost and soil temperatures rise above 50C.

Flowering

Flowering typically occurs about 60 days after emergence.

Fruiting

Fruiting follows flowering, with tubers developing underground.

Senescence

Foliage dies back with the first autumn frosts.

Dormancy

Enters dormancy after senescence, overwintering as tubers.

Timing is relative to your local season (temperate Northern Hemisphere).

Soil interactions

Drainagewell-drained
Nitrogen fixingYes
MycorrhizalYes
Accumulatesnitrogen
Soil textureloam, sandy_loam, clay_loam
Organic matterMedium
Compaction toleranceMedium

Propagation

Methodsseed, tuber_division
Difficulty2 / 5
Establishes in~2 yr
Self-seedingModerate
Divisionspring

Wildlife & pests

Attractsbees, pollinators