Common foxglove blooms mainly in early summer. ... Pollinated flowers are followed by a rounded fruit capsule which splits open at maturity to release the numerous small brown, ridged seeds. Each plant can produce 1-2 million seeds which will readily self-seeding under favorable growing conditions.

Do foxgloves come back every year?

Foxgloves are either biennial, producing a rosette of foliage in the first year followed by flowers in the second, or perennial, flowering every year. For structure they're ideal.

How do you get foxgloves to self seed?

Foxgloves are self-seeding, meaning that with time you can have a continuous border of flowers every year for minimal effort. To achieve this, sow seeds in two consecutive years, so that you never have a gap in blooms.