Digitalis Species, Foxglove, Rusty Foxglove

Digitalisferruginea

Genus
Digitalis (dig-ee-TAH-liss)
Species
ferruginea (fer-oo-GIN-ee-a)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
Smooth
Velvet/Fuzzy
Height
36-48 in. (90-120 cm)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Bright Yellow
Brown/Bronze
Bloom Time
Mid Summer
Other Details
Category
Biennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Dark/Black
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Santa Clara, California

Parker, Colorado

Roslindale, Massachusetts

Lake Orion, Michigan

Tionesta, Pennsylvania

Wilkes Barre, Pennsylvania

Austin, Texas

Leesburg, Virginia

Kalama, Washington

North Bend, Washington

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Gardener's Notes:

3
positives
1
neutral
0
negative
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C
ROSLINDALE, MA | February 2014 | positive

The soft flower color, a soft blend of apricot, burnt orange, and caramel, mixes tastefully with a wide range of other colors.
...Read More

G
(Zone 5a) | April 2006 | positive

Rusty Foxglove thrives in areas that other plants struggle. Mine is in the dry shade of a greedy Maple tree, and it is still full of blo...Read More

F
Lansing, NY | March 2006 | positive

This foxglove is lovely viewed up close -- a young friend gave it the nickname of "golden slippers." With regular deadheading side shoo...Read More

P
Westbrook, ME (Zone 5a) | August 2001 | neutral

The rusty foxglove may not be as showy as some of the digitalis species but it's still a worthy plant that deserves a spot in the garden....Read More

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