- USDA Hardiness Zones 7 - 9
- Height 3 Feet
- Spread 3 Feet
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
Container Sizes
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.
For more detailed information, please click here.
Plant Addict Guarantee (Included On All Plant Orders)
Plant Addicts Warranty - 1 Year (Extra Purchase Required)

Guide: How to Care for Your New Plant(s)

Planter Shipping
Standard Colors: 2-3 business days
Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice
Please Note: On special orders there can not be any cancellations
Plant Shipping
Time of Order:
Summer Shipping
- If there is extreme heat we’ll delay shipping.
- We’ll have to review what areas the plants are traveling through along with your location
Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.
It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.