The sweet pea is a flowering plant that’s native to parts of the Mediterranean, but people grow it all over the world for the sweet-smelling and beautiful flowers. Sweet pea pods and seeds are not edible, but you can harvest them from the plant to propagate more flowers. Sweet pea flowers come in many colors, making them a popular choice for gardens and floral arrangements. To plant more sweet peas, you can harvest and dry the pods and collect the seeds for planting the following year.
Steps
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Stop picking the flowers to encourage seed production. Picking flowers from a plant encourages more flower production. But to harvest seeds, you need the sweet pea to stop producing flowers and focus its energy on producing pods instead. When the weather becomes hotter and drier later in the summer, stop picking the sweet pea flowers. [1] X Research source
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Let the plant go to seed. When you stop harvesting flowers and pruning the sweet peas, they will go to seed. When this happens, the flowers will die off and the sweet peas will start to form pods that are full of seeds. Then, you'll have to wait for the pods to develop and brown before you can pick them. [2] X Trustworthy Source Science Direct Online archive of peer-reviewed research on scientific, technical and medical topics Go to sourceAdvertisement
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Watch for the pods to go brown. As the pods develop, they will swell as the seeds form inside of them. Leave the pods and the plants alone, and over the course of a couple of weeks, the pods will turn from a light green to a yellowish green to a paper-bag brown. [3] X Research source
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Pick the pods when they're paper bag brown. When the pods change from yellowish green to brown, trim the pods from the flowers using gardening sheers. Trim the pods so there some stem left on them, as this will make them easier to dry. [4] X Research source
- Harvest the pods before the weather turns wet and rainy, because the water can cause the seeds to germinate. You don’t want that if you're looking to save the seeds to plant next year. [5] X Research source
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Hang the pods to dry. When you’ve collected the pods, group them into bunches of five to 10. Tie the bunches together by wrapping string or elastic around the stems. Hang the bunches from a clothesline or door handle in a cool, dry place. Use hooks, string, or clothespins to fasten the bunches to the clothesline or handle.
- Leave the pods to dry for several days to a week, until the pods start splitting open. [6] X Research source
- A good place to dry the pods is a garage or dry basement.
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Break open the splitting pods. When the pods have had a few days to dry and are starting to split open, remove them from where they're hanging. Unwrap the elastics holding the bunches together, and lay the pods on a clean cloth. Use your nail or a knife to pry the pods open at the seams.
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Remove the seeds from the pods. Once the pods have been broken open, pick out the seeds with your fingers or a spoon. Transfer the seeds to another clean towel. [7] X Research source Once all the seeds have been harvested, discard the pods or add them to your compost pile.
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Dry the seeds for another day or two if necessary. Leave the seeds on the towel to dry for another few days in the same cool, dry place where you dried the pods. [8] X Research source You want to make sure that all the moisture has evaporated, otherwise the seeds will spoil during storage.
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Store the seeds in a cool, dry place. When the seeds are fully dry and are no longer plump or contain moisture, transfer them to an envelope or paper bag for storage. Close the flap and label the envelope with the type of seeds and the date. Store the seeds somewhere cool and dark until you're ready to plant them in the spring. [9] X Research source
- When dried and stored properly, sweet pea seeds will last between one and three years.
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Plant the seeds in late winter or early spring. Sweet peas will do best if they get an early start. As soon as the soil can be worked in the late winter or early spring, get ready to plant the seeds. In climates with mild winters where the ground doesn’t freeze, you can actually plant the seeds in October or November to have early spring flowers. [10] X Trustworthy Source Science Direct Online archive of peer-reviewed research on scientific, technical and medical topics Go to source
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Select a sunny site with cool soil. Sweet peas like full sun, but they also need to have their roots kept cool. An ideal place for sweet peas is an area that gets full sun, but that has low-growing plants nearby to keep the roots shaded. [11] X Research source
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Amend the soil. The best type of soil for sweet peas is a well-draining soil that’s slightly alkaline. Till the garden bed with aged manure or compost before planting. Till the soil to a depth of 2 feet (61 cm). To make the soil more alkaline, sprinkle lime powder over the tilled garden bed. [12] X Research source
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Soak and nick the seeds. The day before you want to plant, soak the seeds in a cup of warm water for 24 hours. Before planting, drain the water and collect the seeds. Use a pair of nail clippers to make a small nick in each seed right before planting. This will speed up the germination process and increase the chances of success when you plant. [13] X Research source
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Plant the seeds. Dig a long row in the garden where you want to plant the sweet peas. The trench should be about 4 inches (10 cm) deep. Use the sharpened end of a pencil to poke holes in the soil inside the trench, and then drop a single seed into each hole. Cover the holes with a bit of soil and press down to encase the seeds with soil. [14] X Research source
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Water the plants regularly as they grow. Sweet peas need moist soil, so be sure to give them plenty of water if you aren't getting much rain. As soon as the soil starts to dry out, water the plants to keep the soil moist, but not soaking wet. [15] X Research source
Community Q&A
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QuestionWill my green pods dry off the plant?Community AnswerNo. They will turn brown and should then be picked. The drying out won't occur until after the pods have been picked.
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QuestionOnce I have picked the seeds to dry, do I pull the sweet pea plant out of the ground so as to start fresh next year?Community AnswerNo! Sweet peas are perennial and will come up year after year. Our entire bank, by the road, is now a cascade of sweet peas every year. Leave them where they are.
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QuestionWhat is meant by letting the plants pod?Community AnswerIt means don't pick the flowers. They will die off and pods will appear where the flower was.
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References
- ↑ https://piedmontmastergardeners.org/article/guidelines-for-harvesting-vegetables/
- ↑ https://www.sciencedirect.com/science/article/pii/S1319562X11000878
- ↑ https://www.youtube.com/watch?v=WFpPFXxpbqI
- ↑ https://piedmontmastergardeners.org/article/guidelines-for-harvesting-vegetables/
- ↑ https://www.youtube.com/watch?v=WFpPFXxpbqI
- ↑ https://www.youtube.com/watch?v=kms8h8XeKfM
- ↑ https://www.youtube.com/watch?v=hmf-LBSVoDE
- ↑ https://www.youtube.com/watch?v=kms8h8XeKfM
- ↑ https://www.youtube.com/watch?v=SxNMCEVPuQY
About This Article
To harvest sweet pea seed pods, wait until the seed pods turn light brown in color. Then, use gardening shears to cut the seed pods off the flowers, leaving the stems on the pods. Next, hang the pods up to dry by tying string or elastic to the stems, and leave them for several days. Finally, once the pods are starting to split open, pull them apart and scoop out the seeds inside. To learn how to store your harvested sweet pea seeds, scroll down!
Reader Success Stories
- "This article had the best detailed information on how to harvest the sweet pea pods, how to store them, how to remove the seeds from the pods when the harvest was finished, then how to make sure the seeds were dry and how to store them until ready to plant. I am at the point of planting the seeds now, and will read more as time goes by about how to soak and nick the seeds. This is my first year to grow sweet peas, and I want to share the seeds with some friends. Thank you. " ..." more