Light Needs
Mature Height
Mature Spread
Growing Zones
Calling all purple lovers: have we got a shrub for you! This little gem explodes into a cloud of 2-inch single lavender blooms in spring that any purple fanatic craves in their garden. Then, after a short rest, it continues blooming off and on throughout summer and fall. But that’s not the end of its purple wonderfulness; throughout winter it remains robed in evergreen foliage that turns a rich bronzy-purple color as temperatures plunge. Place it alone or in a cluster where you can take advantage of its all-season interest, either near a window or along a walkway. Its dwarf size and cold hardiness also make it one of the best in the Encore® Azalea line for using in containers. It looks especially fantastic in black, white or gray containers flanking an entryway.
You can plant Autumn Amethyst in sun or shade and its soft color makes it well suited to mixing with other plants in part sun or dappled shade. Play up the purple color with hostas that bloom in white and purple, and hydrangeas and ferns also make great companions. For sunnier locations, pair it with spring-blooming peonies, iris and daffodils. Later in the season, its lavender flowers complement coneflowers, daisies, daylilies and phlox.
Autumn Amethyst Encore Azalea Care
Site azaleas in a garden area that is part shade to full sun. They dislike waterlogged soil, so make sure the soil drains well. The planting hole should be dug so that it is twice as wide and no deeper than the root ball. If you have average garden soil, there is no need to amend the soil you use as backfill. Water well after planting, and continue to do so while the plant is getting established. Keep an eye on it during dry spells the first year and water if rainfall does not provide one inch per week. A light mulch applied at the base of the plant helps retain moisture and suppress weeds. Any trimming can be done after spring blooming is finished. Apply a granular fertilizer for acid-loving plants in early spring to enhance blooming.
Autumn Amethyst Encore Azalea Spacing
The stature and habit of this 4x4-foot upright mounding shrub fits in just about anywhere. If planting it alone, give it 2.5 feet on all sides so it has room to fill in. If you are planting a swath of these shrubs (which is effective as a foundation planting under windows or mature trees), you can space a little tighter, about 2 feet center-on-center. For container plantings, be sure the pot has a minimum opening of 16 inches and holds several gallons of potting soil. If the container is light, anchor it with bricks or stones in the bottom so it won’t tip over.
Autumn Amethyst Encore Azalea Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 6 to 10 (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 Shade to Full Sun (4+ Hours Direct Sun)
- Mature Height
- 4 Feet
- Mature Spread
- 4 Feet
- Growth Rate
- Moderate
- Growth Habit
- , Mounded
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Purple
- Flower Description
- Purple
- Bloom Time
- Spring
- 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 to Purple
- Foliage Type
- , 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
- Autumn Amethyst Encore Azalea
- Botanical Name
- Rhododendron Conlee
- Brand
- Encore Azalea
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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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.
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