Light Needs
Mature Height
Mature Spread
Growing Zones
The Bloom-A-Thon White Azalea from Proven Winners ColorChoice is a reblooming shrub that sets it apart from other typical azaleas. The plant blooms in the spring around April for 4 to 6 weeks. Then blooms again in the summer and fall for another 12 to 16 weeks until the first frost. The foliage is semi-evergreen, which means the leaves on the outer edge of the branches stay green year round, but the leaves located in the inner part of the shrub drop in the winter.
This shrub is not only beautiful for more of the year, it is also disease and heat resistant. Even the hottest summer days do not prevent this beautiful plant from producing large white flowers.
Use these small shrubs in mass plantings for a terrific show for over 20 weeks. We also like planting these bushes in garden planters due to their year-round color of green foliage and white flowers. We’ve also seen these planted as short border hedges, which are great around landscaping or garden paths.
Bloom-A-Thon White Azalea Care
Plant these shrubs in an area that receives at least 4-6 hours of sunlight a day. However, these plants can handle full sunlight even on the hottest southern summer days. If you live in zone 7, avoid late season plantings because the azaleas need time to prepare for winter.
Apply a layer of mulch 2-3 inches deep around the base of the plant to help retain moisture and protect the shallow roots from harsh weather conditions. Do not fertilize these plants after mid-July.
Pruning Bloom-A-Thon White Azaleas should be done each year after the spring bloom has started to fade. This will encourage the plant to produce new growth, which will include another round of blooms that will last late into fall.
Bloom-A-Thon White Azalea Spacing
Plant these shrubs at least 3 feet apart, center on center. If you are creating a short garden path border you can plant 30 inches apart, center on center, for a flowering evergreen hedge.
Bloom-A-Thon® White Rhododendron x 'RLH1-3P3' Plant Facts
| USDA Hardiness Zones: 7-9 |
| Flower Color(s): White |
| Bloom Period: Spring, Summer, Fall |
| Foliage Color(s): Green |
| Exposure: Partial Sun to Full Sun |
| Height: 3 Feet |
| Spread: 3 Feet |
| Spacing: 2.5-3.5 Feet |
| Habit: Mounded |
| Blooms On: Old Wood & New Wood |
| Watering: Average |
| Shrub Type: Semi Evergreen |
| Scientific Name: Rhododendron x USPP 11,311 |
| Common Name: Bloom-A-Thon® White Rhododendron x 'RLH1-3P3' |
| Brand: Proven Winners ColorChoice® |
- SKU:
- AZABW
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
We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2025 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
| Growing Zone | Estimated Ship Week |
|---|---|
| Zone 10 | March 31th |
| Zone 9 | March 31st |
| Zone 8 | April 7th |
| Zone 7 | April 14th |
| Zone 6b | April 21st |
| Zone 6a | April 28th |
| Zone 5b | May 5th |
| Zone 5a | May 12th |
| Zone 4 | May 19th |
| Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
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: Idaho, 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!