The Q&A Archives: Starting Sweet Peas From Seed

Question: I have perennial sweet peas. They have many seed pods. I want to plant more. When do I pick the pods? What if anything must I do to the seeds before planting? When and how should they be planted? It is now July 23rd.

Answer: In my experience these plants will self sow in the general area where they are growing now and small seedlings (about eight inches or less) can be transplanted in early spring. If you want to start them yourself however, you can harvest the seeds when the pods are dry and popping open on their own. Store in a cool dry place until ready to plant (inside a closed jar in the fridge works well. Soak the seeds overnight in water to soften them and then plant the seed in very early spring in cool soil, just as you would for annual sweet peas or garden peas. You may also wish to use an inoculant to help increase germination. You might experiment and try planting some of them now and into early fall, although they may not germinate in warm soil.

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