General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 9b
Plant Height: 2 to 4 feet
Fruit: Other: Up to 1.5 inch long flat pod, green maturing to brown. Each pod contains up to 6 seeds
Fruiting Time: Summer
Late summer or early fall
Flowers: Showy
Flower Color: Other: Deep pink to purplish-red
Bloom Size: Under 1"
Flower Time: Summer
Underground structures: Tuber
Dynamic Accumulator: Nitrogen fixer
Wildlife Attractant: Bees
Pollinators: Bees

Image
Common names
  • Earthnut Pea
  • Tuberous Sweetpea

Photo Gallery
Location: indoors Toronto, Ontario
Date: 2020-12-02
Tuberous sweetpea (Lathyrus tuberosus) seeds germination.
Location: Toronto, Ontario
Date: 2021-07-09
Earthnut Pea (Lathyrus tuberosus).

Date: 2020-06-20

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