Digitalis ambigua
large yellow foxglove
A clump-forming perennial to 80cm in height, with dark, evergreen foliage and erect spires of tubular, creamy-yellow flowers 4-5cm in length
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | |||
| Winter | Green |
Position
- Full shade
- Full sun
- Partial shade
Aspect
South–facing or West–facing or East–facing or North–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical details
- Family
- Plantaginaceae
- Native to GB / Ireland
- No
- Foliage
- Evergreen
- Habit
- Clump forming
- Potentially harmful
- TOXIC if eaten. Wear gloves and other protective equipment when handling TOXIC to pets - see the HTA guide to potentially harmful plants for further information and useful contact numbers
- Genus
Digitalis can be biennials or usually short-lived perennials forming a rosette of simple leaves with bell-shaped flowers in slender, erect, usually one-sided racemes
- Name status
Correct
- Plant range
- Europe to W Siberia
How to grow
Cultivation
Will grow in almost any soil or situation except very wet or very dry; ideal site is a humus-rich soil in partial shade. See foxglove cultivation for further advice
Propagation
Propagate by seed sown in pots in a cold frame in late spring or propagate by division in early spring
Suggested planting locations and garden types
- Cottage and informal garden
- Flower borders and beds
Pruning
Cut back main flower spike as it fades to encourage the growth of flowering side shoots
Pests
May be susceptible to aphids and leaf and bud eelworm
Diseases
May be susceptible to powdery mildews, downy mildews and leaf spot
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.