Foxglove in Zone 7a & 7b
Digitalis purpurea
Yes, foxglove grows in zones 7a and 7b. Start seeds indoors Jan 23–Jan 30 and plant out Apr 17–Apr 24.
When to plant foxglove in zone 7b
Zones 7a and 7b share the same average frost dates, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. It needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Jan 23–Jan 30 |
|---|---|
| Direct sow / transplant outside | Apr 17–Apr 24 |
| Estimated bloom | About a year after planting |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 2-5 ft.
Plant alongside it in zone 7b
These go outside within two weeks of foxglove in zone 7b, so one planting day can cover them.
- NasturtiumApr 17–Apr 24
- MarigoldApr 17–Apr 24
- Ageratum (Flossflower)Apr 17–Apr 24
- AmaryllisApr 17–Apr 24
- Annual Geranium (Pelargonium)Apr 17–Apr 24
- Butterfly Weed (Asclepias)Apr 17–Apr 24
Foxglove produces some of the most dramatic flower spikes of any garden biennial, tall stalks lined with tubular, often speckled blooms. It's also the source of digoxin, a real heart medication, which is a way of saying every part of this plant is toxic if eaten, not just mildly irritating.
How foxglove fits zone 7's season
Zone 7b's frost-free window runs about 198 days, from April 10 to October 25. Foxglove takes about a year from planting to first bloom, so it spans more than one growing season.
Foxglove planting windows in every zone
Zone 7b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.
| Zone | Start indoors | Sow or plant out | Bloom |
|---|---|---|---|
| 4a & 4b | Feb 27–Mar 6 | May 22–May 29 | About a year after planting |
| 5a & 5b | Feb 22–Mar 1 | May 17–May 24 | About a year after planting |
| 6a & 6b | Feb 7–Feb 14 | May 2–May 9 | About a year after planting |
| 7a & 7b (your zone) | Jan 23–Jan 30 | Apr 17–Apr 24 | About a year after planting |
| 8a & 8b | Jan 7–Jan 14 | Apr 1–Apr 8 | About a year after planting |
Good companions
No well-established companions for foxglove.
Where to buy foxglove seeds
Burpee (each supplier's foxglove seeds)
See why we recommend these suppliers →
As an Amazon Associate we earn from qualifying purchases. Some links on this page also go to other retailers we may earn a commission from as an affiliate, at no extra cost to you. We only recommend products with a clear consensus of positive, independent reviews, or ones we bought and use ourselves. Each item on our gear page says which.
See it growing
Search YouTube for "growing foxglove" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 7b calendar · Plan your beds in the Garden Designer →
Pin this for later
Growing Foxglove in USDA zone 7b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
Save to Pinterest