LIFE CYCLE
Perennial
PLANT CHARACTERISTICS
Tall flowering
GROWTH HABIT
Upright, clump-forming
BLOOM SEASON
Late Spring to Summer
FLAVOUR PROFILE
Ornamental
SUITABLE FOR
Outdoor
SEED TYPE
Open-pollinated flower seeds
PLANT TYPE
Herbaceous flowering perennial
PLANTING SEASON
Spring
FRUIT SIZE
N/A
PLANT HEIGHT
60–90 cm
LIGHT REQUIREMENT
Partial Shade
WATER NEEDS
Moderate
HARDINESS ZONES
USDA Zones 4–9
CONTAINER GARDEN
Yes
PLANT SPACING
30–45 cm
PLANTING DEPTH
Surface sow
GROWING CONDITIONS
Well-drained soil
Frequently Asked Questions
How does Digitalis dubia differ from common foxglove?
How does Digitalis dubia differ from common foxglove?
Digitalis dubia is a distinct foxglove species, valued for its own growth form and flower-spike appearance rather than being a standard Digitalis purpurea variety.
Can Digitalis dubia work in a woodland-style border?
Can Digitalis dubia work in a woodland-style border?
Yes. Its upright form and flowering spikes can add vertical structure to woodland-inspired borders and naturalistic garden layouts.
What garden design pairs well with Digitalis dubia?
What garden design pairs well with Digitalis dubia?
Combine it with lower-growing perennials and foliage plants to create layers, with the foxglove providing a taller vertical element.
Does Digitalis dubia create a strong vertical accent?
Does Digitalis dubia create a strong vertical accent?
Yes. Its tall flowering habit makes it useful where a garden bed needs additional height and upright structure.
Can Digitalis dubia be allowed to naturalize?
Can Digitalis dubia be allowed to naturalize?
It can fit naturalized planting designs, particularly where a relaxed, informal garden appearance is desired.
Why are foxglove spikes useful in mixed perennial borders?
Why are foxglove spikes useful in mixed perennial borders?
Their vertical flower form contrasts with rounded or spreading plants, helping create visual variation and layered planting.