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Hardy Gloxinia

Incarvillea delavayi

Trumpet shaped flowers bloom on taller flower stalks above graceful fern-like foliage.

This plant features large, bright-pink trumpet flowers, similar in effect to a Gloxinia. Deeply-cut green foliage appears at the base, with stems rising higher bearing clusters of blossoms. Not the easiest plant to succeed with, particularly in regions with hot, humid summers. The fleshy taproot must have excellent drainage, especially in regions with wet winters, so best success is usually had by growing in a rock garden or raised bed. A winter mulch is recommended in Zones 5 and 6. Worth growing even as an annual. Remove faded flowers to encourage more buds. Excellent for cutting.


Bloom Time:

Blooms late spring to mid summer

Mature Height:

18-24 In

Hardiness Zone:

5-9 Find your zone


Full Sun,Partial Shade

Features and Usage:

Greenhouse Growing Instructions:

Grow at 55-65° F keeping soil a little on the dry side until new sprouts appear. Once actively growing keep evenly moist and fertilizer can now be applied. Plants will generally finish in 6-10 weeks based on growing conditions.
Plants Per Gallon: 1
Storage Temperature Prior to Planting: 38
Cooler Humidity Prior to Planting: Low

Transplanting Instructions:

Use a well draining professional potting soil leaving crown of plant at or just above the soil surface. Water well and apply a broad spectrum fungicide according to directions to avoid crown and root rot.

Homeowner Planting and Maintenance Tips:

Hardy Gloxinia are easy to grow in moist soil in full sun to partial shade.

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We have done our best to describe this plant as accurately as possible, however, different climates
and growing conditions in different parts of the country will affect height, bloom time, and color.