PJM Rhododendron
Rhododendron ‘P.J.M.’ · a cold-hardy lavender-pink rhododendron
One of the hardiest rhododendrons, a compact, rounded evergreen with bright lavender-pink flowers in early spring and leaves that turn purple-burgundy for fall and winter, good massed or as a hedge. It copes with near-neutral soil better than most. Give it part shade and soil that drains; full sun scorches it.

- Mature size
- 4.5 × 4.5 ft
- 1.4 × 1.4 m, tall × wide
- Hardiness
- Zones 4a–8b
- USDA
- Sun
- Part sun to full shade
- Water
- Medium to moist
- Blooms
- Apr
PJM Rhododendron at its mature size
A mature PJM Rhododendron grows 3 to 6 feet tall and 3 to 7 feet wide.
Drawn to scale beside a 5 ft 9 in person. With VeraScape, you see it at this size in your own yard.
Typical mature size, unpruned. Sources: NC State Extension, The Morton Arboretum, Cornell Woody Plants.
Through the year
What PJM Rhododendron looks like month by month in a typical zone 6–7 garden.
Winter · Nov–Mar
Leaves turned mahogany-purple.
In flower · Apr
Covered in bright lavender-pink flower clusters.
In leaf · May–Oct
Small dark green leathery leaves, no flowers.
Growing PJM Rhododendron
- Grows well in
- The Northeast, the Midwest, and the Pacific Northwest.
- Growth rate
- Medium
- Good for
- Hedge, small space, foundation planting, specimen, shade garden, and winter interest
- Leaves
- Evergreen
- Native to
- Garden hybrid
Spacing for a hedge
VeraScape spaces plants so their grown canopies just touch. For PJM Rhododendron, that’s about 4.5 ft apart, center to center.
Place a row in your own yard and VeraScape spaces them at their mature width, so you can see whether they’ll crowd the walk.
See PJM Rhododendron in your yard before you dig
Visualize it at its true size, alongside the rest of your design.
Other azaleas and rhododendrons
All drawn to the same scale.