Yellow Foxglove
Digitalis grandiflora (formerly Digitalis ambigua). SCROPHULARIACEAE.
Planting and Growing Yellow Foxglove
You’ll find everything you need to know to plant and grow yellow foxglove in the accompanying table’s tabs:
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- Flowers, foliage, and root structure of yellow foxglove
- Plant hardiness and growing conditions for yellow foxglove
- Season of bloom and planting time for yellow foxglove
- When, how deep, and where to plant yellow foxglove
- How to plant yellow foxglove
- Watering, fertilizing, care, and pests or diseases of yellow foxglove
- Landscape and container uses of yellow foxglove
- Comments about yellow foxglove and its features
Growing Yellow Foxglove
Several cultivars of erect, narrow, deciduous biennial or perennial herbs, 2–3 ft. (60–90 cm) tall. Opposite, hairy, deep green, oval to lance-shaped leaves, to 8 in. (20 cm) long, alternate upward in a conical or pyramidal spike.
Mixing yellow foxglove in plantings with other foxglove hybrids and species will hybridize, resulting in seed with different characteristics than its parent plant.
See also Foxglove, Digitalis species, about 19 species of closely related flowering plants with similar care needs.
Planting and Care Guide
Blooms
Tiers of creamy yellow, flutelike, nodding flowers, 1–2 in. (25–50 mm) long, speckled with brown spots, on tall spikes, in summer.
Best Climates
Hardy. Self-seeding. Zones 4–9.
Soil Type and Fertility
Moist, well-drained humus. Fertility: Rich. 6.5–7.0 pH.
Where and How to Plant
Autumn in partial shade, 15–18 in. (38–45 cm) apart.
Proper Care
Easy. Keep moist. Fertilize monthly. Propagate by seed.
About This Plant
Good choice for backgrounds, beds, borders in cottage, shade, woodland gardens. Good for cutting. Foliage yields digitalis, a medical extract. Pest resistant. Leaf spot susceptible.
Warning:
Foliage and seed of Digitalis grandiflora can be hazardous if eaten. Avoid planting in areas frequented by pets or children.