Growing Information

Growing zone guide
Growing Zone Zone 5, Zone 6, Zone 7, Zone 8
Sunlight Partial shade
Type of Soil Acidic
Mature Height 4 to 6 ft.
Maintenance Level Moderate maintenance
Water Requirement Moderate watering (once a week)

Learn more about this plant

Additional Information
Growth Rate

Moderate; develops into a dense, rounded shrub.


Mature size: about 4–6 feet tall and 5–7 feet wide, depending on site conditions.

Colorful Leaves Yes
Flowering Yes
Bloom Color Red
Ornamental Berries N/A
Disease resistant Yes
Cold Tolerant Yes
Heat Tolerant No
Drought Tolerant No
Deer Resistant No
Edible No
Wildlife Attraction

Flowers attract bees, butterflies, and hummingbirds.


Deer resistant foliage, though young plants may need protection.


Provides cover for small birds due to its dense branching habit.

Self-pollinating Self-pollinating
Seasonality

Spring: Spectacular red blooms and fresh green growth.


Summer: Deep evergreen foliage remains full and healthy.


Fall: Retains green leaves, minimal color change.


Winter: Evergreen foliage provides structure; buds for next season are visible.


Ideal For

– Woodland gardens, shaded borders, foundation plantings, and as a showy spring specimen shrub

Leaf Description

Evergreen, leathery, elliptic leaves about 4–6 inches long.


Deep green above with a slightly paler underside.


Maintains a lush, glossy canopy year-round, contributing to garden structure even in winter.

Flower Description

Produces large, rounded trusses of 10–15 trumpet-shaped flowers in vivid crimson-red with darker throats and slight glossiness.


Each bloom measures about 3 inches across and appears in mid to late spring.


Blooms are slightly ruffled and highly showy, standing out dramatically against dark green foliage.

Pruning & Maintenance

Prune immediately after flowering to preserve next season’s buds.


Deadhead spent flowers to encourage strong vegetative growth.


Remove any dead, damaged, or crossing branches as needed.


Avoid cutting into old wood—Rhododendrons do not regenerate well from hard pruning.

Water Needs

Requires consistent, deep watering, especially during dry periods.


Keep soil evenly moist but not soggy—Rhododendrons are shallow-rooted and sensitive to water stress.


Use mulch to retain soil moisture and reduce temperature fluctuations.

Light Needs

Prefers partial shade with morning sun and afternoon shade.


In cooler northern climates, can tolerate more sun if kept well-watered.


Avoid harsh western exposure or deep shade, which may reduce flowering.


Harvesting

Produces small, brown seed capsules in late summer after flowering.


Fruits are non-edible and ornamental only.


Deadheading before seeds form helps the plant conserve energy for next year’s blooms.


Propagation is best achieved through semi-hardwood cuttings or air layering.


Fertilizing

Fertilize once yearly in early spring after blooming, using an acidic, slow-release fertilizer (formulated for Rhododendrons or Azaleas).


Avoid excessive nitrogen—it promotes foliage growth at the expense of flowers.


Maintain a 2–3 inch organic mulch layer to improve soil acidity naturally.

Additional Care Tips N/A
Pollination

Insect-pollinated; attracts bees, butterflies, and hummingbirds.


Flowers are self-fertile but may also cross-pollinate with other rhododendrons.


Produces small seed capsules after flowering, though propagation is typically done via cuttings.

Companion Plants

Shrubs: Pieris japonica, Azalea varieties, Kalmia latifolia, and Hydrangea quercifolia for complementary blooms.


Perennials: Ferns, Heuchera, Hosta, and Astilbe to provide texture contrast.


Evergreens: Ilex crenata or dwarf conifers for year-round structure.


Works beautifully in woodland gardens, shaded borders, and foundation plantings with other acid-loving plants.

Flowering and Seasonality

Spring: Spectacular red blooms and fresh green growth.


Summer: Deep evergreen foliage remains full and healthy.


Fall: Retains green leaves, minimal color change.


Winter: Evergreen foliage provides structure; buds for next season are visible.


Produces large, rounded trusses of 10–15 trumpet-shaped flowers in vivid crimson-red with darker throats and slight glossiness.


Each bloom measures about 3 inches across and appears in mid to late spring.


Blooms are slightly ruffled and highly showy, standing out dramatically against dark green foliage.

Pet Friendly

No

Growing Zone
  • Zone 5
  • Zone 6
  • Zone 7
  • Zone 8

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