Shrubs
Rhododendron 'Karen'
Karen azalea
Lavender-purple spring flowers cover a broad evergreen mound, followed by green leaves that take on burgundy tones in fall. This Gable hybrid offers cold hardiness and bright spring color. Plant it in a sheltered, acidic bed with other woodland shrubs.
At a glance
- Sun
- Filtered sun to part shade
- Mature size
- 2–4 ft. tall × 3–5 ft. wide
- Water
- Moist, acidic, well-drained soil
- Hardiness
- USDA zones 4–9
- Bloom
- Lavender-purple; spring
Sizes & prices
- #3Reliable Purple azalea$40.99
Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.
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Keep in mind: Azaleas and rhododendrons are toxic to dogs, cats and horses if eaten. Keep browsing pets away.
Seasonal interest
- Foliage
- Evergreen.
Growing & care
- Pruning
- Usually little needed. Remove dead wood; lightly shape just after flowering if necessary.
Sources & photo credits
University of Maryland Extension
Photo: bobosh_t / Flickr, CC BY-SA 2.0; resized for web. · CC BY-SA 2.0
Image notes: Karen azalea. Photo: bobosh_t / Flickr, CC BY-SA 2.0; resized for web.
Reviewed September 21, 2026. Growing conditions vary by location.