Incarvillea, also known as Hardy Gloxinia or Garden Gloxinia, is a beautiful flowering perennial with trumpet-shaped flowers in shades of pink, red, or white. It thrives in well-draining soil and full sun to partial shade.
Planting and Caring for Incarvillea (Hardy Gloxinia)
- Choosing the Right Location
Prefers full sun but can tolerate partial shade. Well-draining soil is essential to prevent rot. Ideal for rock gardens, borders, or containers. - Soil Preparation
Loosen the soil to at least 12 inches deep. Amend with compost or sand if drainage is poor. A slightly acidic to neutral soil pH (6.0-7.5) is best. - Planting the Tubers
Plant in early spring after the last frost. Place the tuber 2-4 inches deep, with the growing tip facing up. Space plants about 12 inches apart. - Watering
Keep the soil evenly moist but not soggy. Reduce watering once established, as it is somewhat drought-tolerant. - Fertilizing
Feed monthly with a balanced fertilizer during the growing season. Avoid high nitrogen fertilizers, which promote foliage over flowers. - Mulching
Apply a light mulch to retain moisture and suppress weeds. - Deadheading & Pruning
Remove spent flowers to encourage continuous blooming. Cut back foliage after it dies back in fall. - Winter Care
In colder zones (below Zone 6), apply a thick mulch for winter protection. In areas with severe winters, lift and store tubers like dahlias. - Pests & Problems
Slugs and Snails: Protect young plants with deterrents.
Root Rot: Avoid overwatering and ensure good drainage.
Aphids: Wash off with water or use insecticidal soap.
