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) Not Applicable
Sun Exposure: Full Sun Sun to Partial Shade
Danger: Seed is poisonous if ingested All parts of plant are poisonous if ingested
Bloom Color: Violet/Lavender
Bloom Time: Late Spring/Early Summer Mid Summer
Other details: This plant is attractive to bees, butterflies and/or birds Flowers are fragrant Average Water Needs; Water regularly; do not overwater Requires consistently moist soil; do not let dry out between waterings
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
On Aug 9, 2008, plantaholic186 from Winnetka, IL wrote:
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 transplanted them in the heat of August, and they don't even flag or drop leaves. My soil is predominantly clay, which means the top 5" or so dries up quickly, while below that the water might not drain for several days, and still the Lathyrus thrives! Next year I'll collect seeds and offer them here, since these plants are difficult to find in these parts.
Even though it blooms for only a couple of weeks, and is otherwise not spectacular, it is well worth trying.
Further comments: my Lathyrus is thriving in dry shade, wet shade, and full sun in wet and dry.
Warnings: It is a very prolific self-seeder, and the seedlings are deep rooted and require a trowel to remove. Also, the rabbit that got stuck in my garden seemed to prefer them to other plants.
On Jul 29, 2008, emilybee from Los Osos, CA wrote:
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 also never bloomed. Do perennial sweet peas take some time to get established before blooming or should they bloom the first year? I have them in containers which hasn't hindered their growth but could that be why they haven't bloomed?
On Mar 25, 2006, SW_gardener from (Zone 6a) wrote:
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 what I can tell from the tiny shoots.....it's coming back well. I look forward to seeing it bloom!
On Dec 9, 2004, Todd_Boland from St. John's, NL (Zone 5b) wrote:
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 tendency to self-seed, so I promtly dead-head after the blooms have faded. It sprouts as soon as the snow melts but seems to be able to cope with spring frosts. I grow it in the rock garden, but in the wild, it often grows in lightly shaded woodlands, so could be used in such a location. Easy from seed but resents transplanting once established.
This plant has been said to grow in the following regions:
Baywood-los Osos, California Pike Creek, Delaware Northfield, Illinois Park City, Illinois Davenport, Iowa North Lakeville, Massachusetts Gem Lake, Minnesota Sparks, Nevada Airmont, New York Laflin, Pennsylvania Georgetown, Texas Fishersville, Virginia Bellevue, Washington Olympia, Washington