Azalea 'Hilda Niblett'


Family: Ericaceae (er-ek-AY-see-ee) (Info)
Genus: Rhododendron (roh-do-DEN-dron) (Info)
Cultivar: Hilda Niblett
Additional cultivar information:(Robin Hill Series)
Hybridized by Gartrell
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6-12 in. (15-30 cm)


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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)

Sun Exposure:

Sun to Partial Shade


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Bloom Color:

Pale Pink


Bloom Time:

Late Spring/Early Summer


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Other details:

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Patent Information:

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Seed Collecting:

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Foliage Color:

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Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Simi Valley, California

Hamilton, Georgia

Marietta, Georgia

Milton, Massachusetts

Port Washington, New York

Simpsonville, South Carolina

Herndon, Virginia

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Gardeners' Notes:


On Oct 14, 2008, klstuart from Simpsonville, SC (Zone 7b) wrote:

I've had 3 of these for 2 years now. They've performed exceptionally well, loaded with blooms! At first I worried that they weren't going to bloom, but they just bloomed later than I expected. They are in part-shade on the north side of my house. After having so many shrubs that get out of control, the nice compact size of Hilda Niblett is a relief! The flowers are a gorgeous, varied coral.


On May 2, 2007, AndyGram from Herndon, VA wrote:

This azalea is not very floriferous. I have eight Azalea 'Hilda Niblett' shrubs in two locations; they've had three years (some have had four years) to settle in. They share their location with other azaleas (several types) all of which flower quite well. However, the Hilda Nibletts, at best, produce only a few blossoms per shrub and some don't flower at all.

On the plus side, the shrub is compact and has stayed small, the shape is very nice and the foliage is a pleasing dark green. It also seems quite hardy for an just doesn't flower.


On Mar 25, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

Hilda Niblett is a truly beautiful, one-of-a-kind plant. Its unique, low-maintenance turtle-shaped habit makes it one of the most exciting Robin Hill Azaleas. It bears soft pink, 4-inch flowers heavily marked with a deeper rose-pink. Small, bright green leaves give year-round appeal.

More than four decades in the making, Robert Gartrell's large-flowered, evergreen Azaleas extend the Azalea bloom season into late spring and early summer. Robin Hill Azaleas are easy to grow in light to medium shade, and are exceptionally cold-hardy and weather resistant.

Never more than 1 foot tall, its growth is vigorous but disciplined, requiring no pruning to maintain its symmetrical shape. With a 3- to 4-foot spread, Hilda Niblett is invaluable as a ground cover or for rest... read more