Does sweet pea come back every year?
Sweet peas (Lathyrus odoratus) only live for a year, dying after setting seed. Perennial species such as Lathyrus latifolius come back year after year, but mostly lack fragrance and there are fewer to choose from.
How long do sweet pea vines last?
How Long Will Sweet Pea Seeds Last? Sweet pea seeds should remain viable for two to three years if properly stored. Harvesting sweet pea seeds is as simple as letting the pods mature on the vine until they’re ready to pick, letting them dry out, and storing.
Should you cut back sweet peas?
Prune the plants back to the ground in late winter or early spring before growth begins. Prune sweet pea plants with diseased foliage back to the ground in fall. Discard, don’t compost, the leaves and stems of diseased plants to reduce the risk of future disease problems.
Do sweet pea vines need full sun?
Sweet Peas enjoy full sun in the northern half of the US. In the South, they can benefit from afternoon shade. They like cool roots and cool temperatures so they are planted as early as possible in the spring. A light frost will not harm newly planted seedlings.
How to take care of a sweet pea plant?
Care of Sweet Peas. Pinch out the growing tips of the plants when they are about 6 inches tall to stimulate lateral growth and bushiness. This is a good time to mulch the plants as well. Water the soil around the plants often enough to keep it moist, applying the water slowly and deeply.
Are there sweet pea vines in the wild?
The two most likely to be growing wild are annual sweet pea (Lathyrus odoratus) and perennial sweet pea (Lathyrus latifolius). The perennial vine is also called everlasting pea, and it grows in U.S. Department of Agriculture plant hardiness zones 4 through 7. They grow best in full to partial sun with deep,…
Is the sweet pea plant poisonous to humans?
Perennial sweet pea vine produces flowers in abundance throughout the summer and into the fall. To encourage more blooms, be sure to deadhead spent flowers. If you don’t deadhead, the plant will produce seedpods which resemble those of an edible pea plant. Take care not to eat these “peas,” though. They are quite poisonous.
When to prune sweet pea plants in the fall?
Prune the plants back to the ground in late winter or early spring before growth begins. Prune sweet pea plants with diseased foliage back to the ground in fall.
