Bright white flowers on low mounded Bloom-A-Thon White reblooming azaleas Bloom-A-Thon White reblooming azalea in garden with mulch Close up of clear white Bloom-A-Thon White reblooming azalea flowers Bloom-A-Thon White reblooming azalea in decorative pot Close up of Bloom-A-Thon White reblooming azalea with yellow flowers in background YouTube video describing the plant shown on this page
photo of Bob Head

Meet the Breeder

Bob Head
Seneca, South Carolina, USA

BLOOM-A-THON® White

Azalea - Reblooming

Rhododendron

'RLH1-3P3'

USPP 21,512

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Bright white flowers on low mounded Bloom-A-Thon White reblooming azaleas Bloom-A-Thon White reblooming azalea in garden with mulch Close up of clear white Bloom-A-Thon White reblooming azalea flowers Bloom-A-Thon White reblooming azalea in decorative pot Close up of Bloom-A-Thon White reblooming azalea with yellow flowers in background YouTube video describing the plant shown on this page
  • Reblooming
  • Shade tolerant
  • Double blooms
Description

The Bloom-A-Thon® series is twice as nice as (and more shade tolerant than) other azaleas! Why settle for just a week or two of flowers when you can enjoy up to five months of blooms? Classic crisp white flowers cover this attractive, mounded plant in spring. After bloom, the plant takes a brief rest, then comes roaring back with more red flowers through frost. Even high summer temperatures don't stop this beauty from producing loads of late summer and fall flowers. The evergreen foliage is disease resistant, and maintains excellent color year-round.

USDA Zone 6b - 9 (-5°F/-20.6°C)

icon visually displaying the size and shape of this plant variety

Exposure Full sun, Part sun

Height 2.5 - 3'

Width 2.5 - 3'

Finish Time 1 season

Type Evergreen

Bloom Time Spring, Summer-fall

Flower Color White

Foliage Color Green

Liner Sizes 2 1/4", 4", Quick Turn

Soil Moist, acidic soils with high amounts of organic matter.

Pruning Prune or trim after spring bloom to encourage new growth and more abundant rebloom.

Uses Mass plantings; edging; low hedge; foundation planting; specimen.

Growing Tips At its best when sited in filtered sun all day. Hardy to USDA zone 6b with protection; has survived winters in zone 6a but with significant damage. Benefits from mulch.