Lathyrus Species, Everlasting Sweet Pea, Spring Pea, Spring Vetchling, Spring Vetch

Lathyrusvernus

Family
Fabaceae (fab-AY-see-ee)
Genus
Lathyrus (LAY-thy-russ)
Species
vernus (VER-nus)
Synonym
Orobus vernus
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
12-18 in. (30-45 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
USDA Zone 9a: to -6.6 °C (20 °F)
Danger
Seed is poisonous if ingested
All parts of plant are poisonous if ingested
Bloom Color
Lavender
Bloom Time
Late Spring/Early Summer
Mid Summer
Other Details
Category
Alpines and Rock Gardens
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
Scarify seed before sowing
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
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
Regional

This plant is said to grow outdoors in the following regions:

Baywood-Los Osos, California

Waukegan, Illinois

Winnetka, Illinois

Davenport, Iowa

Lakeville, Massachusetts

Cedarville, Michigan

Eveleth, Minnesota

Saint Paul, Minnesota

Sparks, Nevada

Suffern, New York

Wilkes Barre, Pennsylvania

Georgetown, Texas

Fishersville, Virginia

Bellevue, Washington

Olympia, Washington

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Gardener's Notes:

8
positives
3
neutrals
0
negative
Sort By:
Sort By:
S
Denver, CO | January 2018 | neutral

I noticed this plant growing in an old, neglected container in my neighborhood. Even in Denver, with less than 20" of rain a year (and mu...Read More

C
ROSLINDALE, MA | May 2015 | positive

A beautiful, tough, easy, adaptable plant with showy spring flowers. This should be far more often grown than it is.

Bloom...Read More

W
Eveleth, MN (Zone 3a) | May 2015 | positive

I acquired a plant of L.v. alboroseus from Arrowhead Alpines. It has survived two winters here, I am zone 3b. One winter was deep snow, t...Read More

S
Sharon, CT | March 2011 | positive

I am growing the spring vetchling from seed - I only have 5 and I'm trying to figure out if I should sow outdoors now April 1, in my NW C...Read More

P
Winnetka, IL | August 2008 | positive

I must say, I must have the best L. vernus plants on the earth. They self seed and bloom in the second year. I have divided and transpl...Read More

E
Los Osos, CA | July 2008 | neutral

A couple years back I planted what I thought were annual sweet peas but they have never died so I assume they're perennial. They have al...Read More

A
Calgary, AB (Zone 3b) | May 2008 | positive

Lovely early spring bloomer, and hardy here in zone 3 (Calgary, Alberta, Canada).

N
N
Lakeville, MN (Zone 4a) | April 2008 | neutral

Have attempted to grow twice - unsuccessfully. Didn't make it though the winters both times. Although it is frequently sold in this zon...Read More

S
(Zone 6a) | March 2006 | positive

I bought this last summer and it was only a few leaves. A few of the leaves dired up due to dry soil, but it's sprouting up now and from ...Read More

N
Sparks, NV (Zone 7a) | March 2005 | positive

This little plant is a charmer.

T
St. John's, NL (Zone 5b) | December 2004 | positive

What a great plant in mid-late spring. This little pea forms a bush to about 12-15" and is smothered in pink flowers. It does have a te...Read More

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