Discover the full story behind Most people wait until spring to start their Sweet Peas … but.... This guide explores its crucial role in most.
Most people wait until spring to start their Sweet Peas… but that might be too late
If you want tall, strong stems and early blooms, timing is everything.
Sweet Peas are cool-season plants — they grow their roots during the cold months and bloom once the days get longer.
Here’s how to time your planting
Zones 8–10
Start seeds in trays in fall (Oct–Dec) and grow them in an unheated greenhouse, cold frame, or protected spot until they’re about 3–4” tall.
You can transplant in late fall or winter if your soil drains well and frost is light. Otherwise, hold them until late winter or early spring.
Zone 7
Start seeds in trays in fall or early winter in an unheated, protected space.
Transplant in late winter or early spring once the soil is workable.
Zones 3–6
Start in late winter, about 8–10 weeks before your last frost.
Keep seedlings cool (around 40–55F) in an unheated greenhouse, cold frame, or bright cool indoor spot.
Transplant outdoors once the soil can be worked in early spring.
Tips for success:
• Pre-sprout seeds by soaking for 24 hours before planting.
• Use deep trays or pots — Sweet Peas have long roots that need space.
• Feed the soil with compost before transplanting.
• Keep them cool, not warm — that’s the secret to strong, tall stems.
• For warmer climates, look for early-blooming series like Spring Sunshine, Winter Sunshine, or Early Multiflora types — they bloom faster and can finish before the heat sets in.
• You can direct sow in spring, but warmer soil means faster blooming and shorter plants — they won’t be as tall or strong as fall- or winter-started plants.
It might feel early, but this is the season when next spring’s flowers truly begin
We encourage you to explore most further and apply the knowledge you gained from Most people wait until spring to start their Sweet Peas … but.... What are your thoughts?
We've fetched this topic's video from Facebook for your viewing. If you need to download facebook video Most people wait until spring to start their Sweet Peas … but... in mp4 video, simply ask us in the comments section and we’ll make it available.
