Wildflower Archive

wetland shrub

Pinxter Flower

Rhododendron periclymenoides

Pinxter Flower (Rhododendron periclymenoides)
According to season

Native to the Northeast and the Southeast

New Hampshire to Ohio and Kentucky, south to Georgia and Tennessee

  • Light Partial shade Sun tolerance
  • Moisture Wet Moisture preference
  • Zones 5–8 Cold to heat range
  • Bloom Apr–May Flowering time
  • Height up to 15 ft to 4.6 m
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A wetland shrub for partial shade and wet soil. Its white and pink flowers peak in April. At up to 15 ft, it needs room in rain gardens, pond edges, and damp low spots. Hardy in USDA zones 5–8.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Hardiness zones

Find your zone:

When it blooms

The Pinxter Flower's white and pink flowers bloom April to May, peaking in April. This spring display draws bees and butterflies.

Apr–MayJanFebMarAprMayJunJulAugSepOctNovDec

Pinxter Flower blooms white & pinkFoliage

Pollinators & wildlife

  • Bees Common Eastern Bumble Bee
    also Eastern Carpenter Bee, Two-spotted Bumble Bee, American Bumble Bee +5 more Asian Shaggy Digger Bee, Tridentate Miner, Azalea Mining Bee, Protuberance Miner Bee, Xylocopa virginica virginica
  • Butterflies Eastern Tiger Swallowtail

Butterflies that use this plant

Documented host and nectar records. Each links to a planting guide for that butterfly.

Full plant details

Where it grows

Habitat
WetlandThe wild plant community it grows in.
Native range
The Northeast and the SoutheastUnited States (18): CT, DC, DE, GA, KY, MA, MD, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, WV. Where it grows wild on its own, by state and province.
Native distribution
New Hampshire to Ohio and Kentucky, south to Georgia and TennesseeThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Partial shadeHow much sun it takes, from full sun to full shade.
Moisture
WetThe soil dampness it prefers, from dry to wet.
Hardiness zones
USDA 5–8 · Canadian 6–7The cold-to-heat climate range it survives.
Soil
Various well-drained soilsThe soils it grows in naturally.
Soil texture
Light to heavy (sandy to clay)The soil grade it prefers, from sand to clay.
Soil pH
4.3–5.5The acidity to alkalinity it tolerates (7 is neutral).
Soil quality
MediumHow rich a soil it needs. Many natives prefer lean soil and flop in rich beds.
Water use
LowHow thirsty it is, a rough guide to how often to water.
Salinity tolerance
NoneHow well it copes with salty soil, near roads or the coast.
Lime (CaCO₃) tolerance
NoneHow well it copes with chalky, lime-rich soil.

Growth & form

Height
up to 15 ft (to 4.6 m)Typical mature height.
Spread
~7 ft (2 m)How wide one plant gets, a guide to spacing.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).
Growth rate
ModerateA relative ranking versus other plants of the same type (USDA), not an absolute rate.
Shape
ErectIts overall silhouette.
Root depth
8+ in (20+ cm)How far the roots reach, a guide to drought resilience and transplanting.

Flowers, foliage & fruit

Type
ShrubWhat kind of plant it is.
Bloom
Apr–MayWhen it flowers.
Flower color
White, PinkThe bloom color, or colors.
Toxicity
Poisonous if eatenWhether any part is poisonous to people or pets.

Propagation & seed

Cold stratification
Required (cold, moist)Whether seed needs a cold, moist spell before it will germinate.
Propagation
Bare root, container, cuttings, seedHow to start new plants.
Seed spread rate
SlowHow readily it self-sows. Slow or none means well-behaved, not a spreader.
Seedling vigor
LowHow strongly young seedlings establish.
Vegetative spread
NoneWhether it creeps outward or stays put in a clump.