Photo by Melody

PlantFiles: Everlasting Sweet Pea, Perennial Sweet Pea, Spring Pea, Spring Vetchling, Spring Vetch, Spring Bitte
Lathyrus vernus 'Albo-roseus'

Family: Papilionaceae (pa-pil-ee-uh-NAY-see-ee) (Info)
Genus: Lathyrus (LAY-thy-russ) (Info)
Species: vernus (VER-nus) (Info)
Cultivar: Albo-roseus

Synonym:Orobus vernus

2 members have or want this plant for trade.

Alpines and Rock Gardens

12-18 in. (30-45 cm)

15-18 in. (38-45 cm)

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Seed is poisonous if ingested
All parts of plant are poisonous if ingested

Bloom Color:
Pale Pink
White/Near White

Bloom Time:
Late Winter/Early Spring
Mid Spring
Late Spring/Early Summer


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

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

Patent Information:

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Scarify seed before sowing

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By saya
Thumbnail #1 of Lathyrus vernus by saya

By plantaholic186
Thumbnail #2 of Lathyrus vernus by plantaholic186

By DorPartsch
Thumbnail #3 of Lathyrus vernus by DorPartsch

By Morganics
Thumbnail #4 of Lathyrus vernus by Morganics


3 positives
1 neutral
No negatives

Gardeners' Notes:

Positive Morganics On Jun 6, 2014, Morganics from Tullahoma, TN wrote:

I purchased this plant from the late, great Seneca Hill Perennials in 2006. Since then it has thrived in dry shade under a Japanese maple, which is under a massive white oak on the eastern side of my house. It's right next to my front walk, and is one of my favorites. The spring show is very eye-catching and the glossy, dark green foliage persists throughout the summer here, in Zone 7a. I've just collected some seed and hope to grow more. This tough customer would be a unique and welcome addition to any dry, wooded landscape.

Positive coriaceous On May 31, 2014, coriaceous from ROSLINDALE, MA wrote:

This is an easy, tough, long-lived, shade-tolerant perennial that puts on a good show of flowers in early spring. It blooms for about a month, beginning with the early daffodils. This "cultivar" (actually a seed strain) flowers soft pink and white, without the blue tones of the species.

In the south, it goes dormant when the hot summer weather arrives. Here, it usually holds its foliage in good shape through the summer.

This is a plant of deciduous woodlands that will tolerate full sun here (Boston Z6a). It is deep-rooted and is one of the better plants for dry shade. I like to plant it where it will disappear under the emerging foliage of large hostas or ferns after it flowers.

It grows only about a foot tall. It has no tendrils and does not cling or climb. The perennial/everlasting sweet pea is a different species, Lathyrus latifolius.

L. vernus and the cultivar 'Albo-roseus' have received the Royal Horticultural Society's coveted Award of Garden Merit.

Positive DorPartsch On Aug 13, 2009, DorPartsch from Chesterton, IN wrote:

This plant is hardy, and in this region, growing in partial shade, requires no watering other than the rain. It needs a support -- in my yard a weathered split-rail fence with stick pins stuck in places where the sweet pea's tendrils could curl around them. Other shoots of the plant can be attached to the tendrils of the first shoots after the first are firmly gripping the support. The prettiest display of blossoms was in early summer, but with deadheading, it continues to bloom nicely this August. This plant was eaten off to ground level (by rabbits?) the first year or two; now I have a low barrier to protect the shoots as they come out of the ground. Perennial sweet peas have no scent, but the flowers are lovely, and the shoots and leaves are attractive.

Neutral saya On Apr 30, 2008, saya from Heerlen
Netherlands (Zone 8b) wrote:

L. vernus Alboroseus has pink and white flowers and grows to 35cm in height. It is a clump-forming, herbaceous perennial that loves to grow in fertile, humus-rich, well-drained soil in full sun or partial shade.
Deadhead regularly then cut stems down to the ground in autumn. If you like to propagate it by dividing in early spring mind that they sometimes resent disturbance.

The plant may cause mild stomach upset if ingested.


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

Winnetka, Illinois
Chesterton, Indiana
Roslindale, Massachusetts
Buffalo, New York
Tullahoma, Tennessee
Bainbridge Island, Washington

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