Photo by Melody

PlantFiles: Indian Pea, Blue Sweetpea, Chickling Pea, Grass Pea
Lathyrus sativus 'Azureus'

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Lathyrus (LAY-thy-russ) (Info)
Species: sativus (sa-TEE-vus) (Info)
Cultivar: Azureus

Synonym:Lathyrus sativus var. azureus

One vendor has this plant for sale.

4 members have or want this plant for trade.

Vines and Climbers

24-36 in. (60-90 cm)

15-18 in. (38-45 cm)

Not Applicable

Sun Exposure:
Full Sun
Sun to Partial Shade

Seed is poisonous if ingested

Bloom Color:
Medium Blue

Bloom Time:
Late Spring/Early Summer
Mid Summer


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
From seed; sow indoors before last frost
From seed; direct sow after last frost
From seed; germinate in a damp paper towel
Scarify seed before sowing

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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Thumbnail #1 of Lathyrus sativus by evr

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1 positive
2 neutrals
No negatives

Gardeners' Notes:

Positive sladeofsky On Jan 19, 2015, sladeofsky from Louisville, KY (Zone 6b) wrote:

Pretty, but not showy. Better as a filler in the flower garden, or leaning against a Clematis or Rose. It can also be used to spill out of large containers and window boxes. Also, I think this plant needs to be grown near the path or patio as you really need to get close to fully appreciate it. It is among the bluest of flowers. Unlike Sweet Peas (odorata) it takes heat well. A small clarification,: "Azureus" is not a cultivar; rather, it is a natural variation of bloom color.

Neutral berrygirl On Mar 5, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

Commonly grown in China and India as a grazing crop for animals, where over 4 million acres are in cultivation. Toxic, like all other sweet peas, but researchers are working to develop strains that will be edible for humans in drought-striken countries. This one is rarely offered. Does well even in the heat of summer. Annual, low-growing 1-2' plants.

Neutral blackbunny On Jun 6, 2006, blackbunny from Provincetown, MA wrote:

The expensive seed packet declared "a profusion blue blossoms" on this sweet pea relative. In my Cape Cod garden I have been able to grow this pleasant legume with enough blooms to entertain me, but I think "Profuse" is overstating its virtues. It has left me with enough seed pods to replant, which I have done, as it's pretty enough and harmless. I've decided that it's worth sticking seeds in my herb patch here and there to meander and blossom, and possibly improve the soil, but I'm not terribly impressed with it otherwise.


This plant has been said to grow in the following regions:

Los Angeles, California
Richmond, California
Provincetown, Massachusetts
Raleigh, North Carolina

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