When Sweet Peas Finished Flowering?

Select a few beautiful, robust plants and stop deadheading them. The seedpods don't begin to form until after the flower dies, so the flowers must remain on the plant until they are dead. Treat the rest of the plants in the garden as usual, deadheading to keep them blooming freely all spring.

What month do sweet peas stop flowering?

With regular dead heading, Sweet Peas can flower through to November. Plant Sweet Peas in a sunny spot bearing in mind Sweet Peas have a strong preference for moisture retentive soil, enriched with compost or other organic matter.

How long do sweet peas keep producing?

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.