Light Needs
Mature Height
Mature Spread
Growing Zones
Amy Cotta Rhododendron, Rhododendron x USPP 11,311, is an early season flowering evergreen shrub. The dark foliage looks great all year long, and the plant is covered in ruffled lavender pink flowers in the spring.
Plant these as a landscape border for a beautiful edge year long. These are slow-growing and compact, and perfect for people with limited space. These plants also do great in garden planters.
These bushes are great for pollinators, including hummingbirds, butterflies, and bees.
Amy Cotta Rhododendron Care
These shrubs prefer moist but well drained soil, that is slightly acidic. Plant in an area that receives morning sunlight, but gets some afternoon shade if possible. Although, these plants can tolerate full sun (over 8 hours of sun per day). The rhododendron also does best in areas that are somewhat protected from the wind.
Pruning Amy Cotta Rhododendron is not necessary. Do trim dead or sick branches throughout the year. If you do wish to prune, it should be done immediately after flowering. This plant blooms on old wood, so if you prune too late in the year, you risk cutting off the following year’s flower buds.
Amy Cotta Rhododendron Spacing
These shrubs should be planted at least 5 feet apart, center on center. If you choose to plant in a garden container, be sure that the soil is well drained.
If you would like to plant these into a low mounding hedge, spacing should be closer to 36 inches apart, center on center. It makes for a beautiful evergreen hedge, that goes great along garden paths.
Amy Cotta Rhododendron Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 4 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
- 2-3 Feet
- Mature Spread
- 3.5-4.5 Feet
- Growth Habit
- , Mounded
- Water Needs
- Average
Flowers & Foliage
- Flower Colors
- , Purple
- Flower Description
- Purple
- Bloom Time
- Mid-Spring
- Blooms On
-
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
- Right after flowering
- Foliage Color
- , Blue, Green
- Foliage Description
- Green
- Foliage Type
- , Evergreen
- Seasonal Interest
- , Spring Flowering, Fall Interest, Winter Interest, 3 Season Interest, 4 Season Interest
Garden Benefits
Plant Overview
- Common Name
- Amy Cotta Rhododendron
- Botanical Name
- Rhododendron x USPP 11,311
- 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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We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 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.
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!