Delta tule pea
Lathyrus jepsonii
Last reviewed: September 2026
Delta tule pea (Lathyrus jepsonii) is a perennial vine native to CA. It blooms in May, June, and July. The flowers draw bees.
Toxicity unknown
Delta tule pea (Lathyrus jepsonii) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
high
Size
36"–96" H × 24"–48" W
Bloom
May, Jun, Jul
Native to
CA
Pollinators
bees
Before you buy
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A sprawling perennial vine that climbs by tendrils over surrounding marsh vegetation. Clusters of purple-pink pea-shaped flowers appear in late spring and summer, found in brackish and freshwater marshes.
Growing Delta tule pea
Grow Delta tule pea in full sun and high water. Mature plants reach 36 to 96 inches tall and spread 24 to 48 inches wide.
Wildlife value
Pea-shaped flowers are pollinated by bumble bees and other native bees along marsh edges.
Common questions
- How much sun does Delta tule pea need?
- Delta tule pea grows best in full sun conditions.
- When does Delta tule pea bloom?
- Delta tule pea blooms in May, June, and July.
- Where is Delta tule pea native?
- Delta tule pea (Lathyrus jepsonii) is native to CA, per vouchered herbarium specimen records and regional native plant society lists.
- What pollinators does Delta tule pea attract?
- Delta tule pea draws bees.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Delta tule pea? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.