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Bloom-A-Thon® Lavender Azalea

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Bloom-A-Thon Lavender Azalea Shrub Covered in Flowers
  • USDA Hardiness Zones 7 - 9
  • Height 42 - 54 Inches
  • Spread 36 - 48 Inches
  • Partial Sun to Full Sun

The Bloom-A-Thon Lavender Azalea by Proven Winners is a very rare purple flowering azalea. This shrub not only blooms in a color that is hard to find, but it also puts on a show by blooming for over 5 months throughout the spring, summer and fall! Plus the foliage is semi-evergreen. Meaning the outer leaves on the branches stay green year long, and the inner leaves fall during the winter.

The bushes are fantastic in mass plantings to have color all season and year long. We also enjoy these as flowering evergreen hedges and borders. These azaleas also make great plants for garden planters due to the fact of the long bloom time and year long foliage.

These shrubs are disease resistant and take minimal care in order to have beautiful shrubs. All Bloom-A-Thon azaleas also do great in hot conditions and are heat tolerant even during the hottest summer days in southern states.

Bloom-A-Thon Lavender Azalea Care

Plant these shrubs in well drained soil that is rich with nutrients. These do best with plenty of sun, but some afternoon shade in hot climates is a good idea. If you have a full sun location, these bushes will still perform very well. Watering is necessary weekly but sometimes these require more water than that during hot and dry summer conditions.

These azaleas do best with a 2 to 3 inch layer of mulch around the base of the plant. This helps retain moisture and protect the shallow roots. You may fertilize once a year using common azalea & rhododendron fertilizer, but do not do so after mid-July.

Pruning Bloom-A-Thon Lavender Azaleas is best done once a year. This promotes new growth and flower buds. It is best to trim in early summer as the first round of blooms start to fade. Do a conservative light cutting around the entire plant.

Bloom-A-Thon Lavender Azalea Spacing

Plant these shrubs 3 to 4 feet apart, center on center. If you would like to grow a flowering evergreen hedge, you can plant these 30 inches apart, center on center.

Rhododendron x 'RLH1-4P19' Plant Facts

USDA Hardiness Zones: 7-9
Flower Color(s): Purple
Bloom Period: Spring through Fall
Foliage Color(s): Green
Exposure: Part Sun to Sun
Height: 3.5-4.5 Feet
Spread: 3-4 Feet
Spacing: 3-4 Feet
Habit: Mounded
Blooms On: New & Old Wood
Watering: Average
Shrub Type: Deciduous
Scientific Name: Rhododendron x 'RLH1-4P19' USPP 21,476
Common Name: Bloom-A-Thon® Lavender Azalea
Brand: Proven Winners®


Click here for more information and pictures of containers.

Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

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

Planter Shipping

Standard Colors: 7-10 business days

Speical Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On speical orders there can not be any cancellations

Plant Shipping

Time of Order:

Winter to Early Spring

  • Is it warm enough to plant in the customer’s growing zone?
  • What areas does the plant has to travel through from our nursery to your home?
  • Is the plant at the nursery ready to ship.
    • The plants from the South will naturally be ready sooner than the plants from the North (If you have questions or concerns about when a plant will ship please email us at info@plantaddicts.com)


  • 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

Fall into Winter

  • We’ll ship all the way up to the end of the fall planting season!


  • Get your order in now to reserve you plants for Spring planting!

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 the beginning of the following week from your order date. We put together this helpful guide for 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.

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1 Review - Bloom-A-Thon® Lavender Azalea Hide Reviews Show Reviews

  • 5
    purple heaven

    Posted by Mia Hatch on Mar 27th 2019

    these are so beautiful. I planted 11 of these on the border of my acreage to provide a natural line between properties. my neighbor split the cost with me. it turned out just fantastic. I'll send pictures this spring once it starts blooming again this year. This year I may try and plan something similar with my other neighbor. So much better looking than an ugly fence. plus you get flowers too which is nice.