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Perennial Sweet Pea

Sweet Pea-perennial. This aggressive climbing plant is very long-lived. Grows 5-6' and spreads considerably. A mix of pink, lavender, and white sweet pea blooms appear in summer and keep blooming past frost.

20 seeds



Lathyrus odoratus


Germination: 7-14 days

Germination Temperature: Optimum soil temperatures 55-65ºF, soaking seeds overnight aid the germination

Seed Planting Depth: Sow ½” deep

Starting Indoors: Start indoors 6-8 weeks before transplanting outdoors in early to mid-spring. Provide 65-75ºF soil temperatures until germination. Transplant 4-6” apart. 

Sowing Outdoors: Direct sow outdoors in early spring 

Growth Habit: Vining, climbing

Height and Width: 24-30"

Spacing: 4-6” apart

Light Needs: Full sun

Soil Needs: Fertile, moist but well-drained

Approximate days to flower from seed: Blooms in 75-85 days

Uses: Cut flowers, containers, grow on fences, walls, trellises, and arbors, attracts bees, butterflies, and  hummingbirds

Care:  Grows best in cool mild climates, mulching helps keep roots cool and moist. Pinch to encourage branching, harvest often to encourage more flowers. Amend the soil with compost before transplanting. Apply a liquid fertilizer every 3-4 weeks 

Customer Reviews

Based on 8 reviews Write a review
Customer Reviews
4.7 Based on 6 Reviews
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Filter Reviews:
    Loretta C.
    United States
    I recommend this product
    Prompt, honest service

    I was very satisfied with service. Original seeds did not germinate so they sent me new seeds. They did germinate. Very satisfied with Pinetree Garden seeds.

    laura t.
    United States United States
    I recommend this product
    Fabulous Vines

    I don't have any flowers yet, but the vines are growing beautifully and are pretty by themselves. I hope I get flowers soon, but I think I planted them too late.

    Richard T.
    United States United States
    I recommend this product
    Perennial sweet pea

    As always service and shipping times were great. I've been growing perennial sweet peas for years and thought it was time to expand on the two vines I've had over 6 years.

    Mary M.
    United States United States
    No luck with these--

    I just can't grow these--maybe it's me, but all I get is spindly vines and they don't come back.

    Linda V.
    United States
    Sweet Pea perennial seeds

    I'll need to wait until next year to start the seeds...they should be a decent height before putting in the ground, but I look forward to their beauty! Good service..thanks and blessings, Linda