Light Needs
Mature Height
Mature Spread
Growing Zones
The Bloom-A-Thon Red Azalea by Proven Winners ColorChoice has large red flowers for 5 months of the year! This shrub first blooms in early April, then blooms again in early July. The bush is also semi-evergreen, which means the leaves on the outer edge of the branches last all year, but the leaves in the inner part drop in the winter.
Bloom-A-Thon shrubs still perform in the hottest southern summer days, up to zone 9. The heat resistant shrubs can handle full sunlight and still produce large red flowers from spring until the first hard frost. The plants are also disease resistant and easy to care for.
Plant these in garden containers for 12 months of color. Or you can plant these in gardens or landscaping. We particularly like planting these as an flowering semi-evergreen hedge.
Bloom-A-Thon Red Azalea Care
These shrubs need at least 4 hours of sunlight a day, although the shrubs can handle full sunlight with no shade. Avoid planting these in late fall if you live in zone 7, because the plants need some time to prepare for winter.
All azalea and rhododendron benefit from a layer of mulch around the base of the plant. This helps retain moisture as well as protect the shallow roots from harsh weather conditions. We recommend a layer 2 to 3 inches thick. Do not fertilize after mid-July.
Pruning Bloom-A-Thon Red Azalea is necessary in order for the shrub to re-bloom again in early summer. After the initial flowers start to fade, a light all-over trim is all that is needed. This will encourage new growth and new blooms to form again.
Bloom-A-Thon Red Azalea Spacing
Plant these shrubs 3 - 4 feet apart, center on center. To create a low mounding flowering hedge, you can plant 30-36 inches apart.
Compare Bloom-A-Thon® Azaleas
Compare flower color, mature size, landscape role, and the features that set each Bloom-A-Thon® Azalea apart.
| Variety | Flowers | Mature Size | Best For | Why Choose It |
|---|---|---|---|---|
| Pure white | 2.5–3' H × 2.5–3' W | Small spaces / containers | Most compact selection with bright white flowers | |
| Clear red | 3–4' H × 3–4' W | Accent / low hedge | Strong warm color on a balanced mounded shrub | |
| Double pink | 3.5–4.5' H × 3–4' W | Foundation / mass planting | Layered double blooms create the fullest flower look | |
| Lavender-purple | 3.5–4.5' H × 3–4' W | Cool-toned specimen | Uncommon lavender color for a reblooming azalea | |
| Saturated hot pink | 3.5–4.5' H × 3.5–4.5' W | Mass planting / focal color | Strongest pink color with a broad, full mound |
Bloom-A-Thon® Red Azalea Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 7 to 9 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Part Sun to Full Sun (5+ Hours Direct Sun)
- Mature Height
- 3-4 Feet
- Mature Spread
- 3-4 Feet
- Growth Habit
- , Mounded
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Red
- Flower Description
- Red
- Bloom Time
- Spring to Fall
- Blooms On
-
Both New and Old Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Lightly, right after the first flush of flowers
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Semi-Evergreen
- Seasonal Interest
- , Spring Flowering, Summer Flowering, Fall Flowering, Fall Interest, Winter Interest, 3 Season Interest, 4 Season Interest
Garden Benefits
Plant Overview
- Common Name
- Bloom-A-Thon® Red Azalea
- Botanical Name
- Rhododendron x 'RLH1-1P2' USPP 21,562
- Brand
- Proven Winners
- Plant Type
- Evergreen
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
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Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!