How to Plant, Grow, and Care for Sweet Pea Flowers
No, all parts of the sweet pea plant are poisonous. If too much of the plant is consumed, it can cause a condition called lathyrism, which is exhibited by paralysis, shallow breathing, and convulsions.
Is it okay if I planted the sweet peas in the same seed starter tray as my herbs? I didn't know they were poisonous until I read this article. They were planted in different pods than the other seeds and will be transplanted to different containers.
looking forward to trying different Sweet Pea varieties this year; Home Depot usually has nice Sweet Pea seeds; lovely garden plant~
Yes, you should be able to. They like the sun but try to keep them from the hottest sun of mid-day, give them something to climb on and don't let them dry out. Plant some low annuals like Alyssum at the bottom to keep their roots cool. I have had lots of success growing them in south-central Ontario. They are easy to grow and are beautiful! Good luck 🙂
Hi Christine, Thanks for your question.
With perennial sweet peas, you will want to cut your plant back to the ground in winter. If you are in a location with frost, it is best to cut it back anytime after the first frost. If not, you can leave it to provide some winter shelter and then cut it back before new growth appears in the spring. Hope this helps!
I’m a novice gardener. We live in middle Tennesse. Can Sweet Peas be grown in containers? Thank you for any advice!
Hi Kathy! Thanks for your question. You most certainly can grow sweet peas in a container at your home in Tennessee. You’ll want to start thinking about getting your seeds in the dirt soon because it is best to plant sweet peas in very late winter or early spring. Choose a bigger container because sweet peas have large root systems.
One thing to remember is that sweet peas are climbers, some growing up to 10 feet tall. Except for the bush varieties, you will want to provide support for your plant to thrive. Sweet peas also like lots of sun, but cool, moist soil.