General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Wet
Soil pH Preferences: Very strongly acid (4.5 – 5.0)
Strongly acid (5.1 – 5.5)
Moderately acid (5.6 – 6.0)
Minimum cold hardiness: Zone 2 -45.6 °C (-50 °F) to -42.8 °C (-45°F)
Maximum recommended zone: Zone 6a
Plant Height: 1-4 feet
Plant Spread: 3 to 5 feet
Leaves: Deciduous
Flowers: Showy
Flower Color: Lavender
Bloom Size: Under 1"
Flower Time: Spring
Late spring or early summer
Suitable Locations: Bog gardening
Uses: Cut Flower
Wildlife Attractant: Bees
Propagation: Other methods: Cuttings: Tip
Layering
Other: Tissue Culture
Miscellaneous: Monoecious

Image
Common names
  • Rhododendron
  • Rhodora

Photo Gallery
Location: Botanical Garden Münster (Germany)
Date: 2016-05-12

Date: May
credit: John Cameron
Location: Thomas Darling Preserve near Blakeslee, PA
Date: 2016-09-13
a lone bush in late summer
Location: Thomas Darling Preserve near Blakeslee, PA
Date: 2016-09-13
the summer foliage
Location: Thomas Darling Preserve near Blakeslee, PA
Date: 2016-09-13
a full-grown shrub in a bog
Location: Thomas Darling Preserve near Blakeslee, PA
Date: 2016-05-20
some bushes in bloom in the bog
Location: Thomas Darling Preserve near Blakeslee, PA
Date: 2016-05-20
close-up of the flowers
Location: Thomas Darling Preserve near Blakeslee, PA
Date: 2016-05-20
shrub in bloom in bog

Photo by Radomił Binek, Wikipedia
Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Dec 16, 2017 3:19 PM concerning plant:
    This species is seldom seen in gardens or landscapes because it is not easy to cultivate. It grows in bogs and swamps in wet, very acid soil from Newfoundland to Labrador to central New York and northern Pennsylvania. I've only seen it in the bog area of the Thomas Darling Land Preserve in Blakeslee, Pennsylvania in the southern Poconos. There is a natural variety with white flowers being: Rhododendron canadense albiflorum. It would be a good candidate for a bog garden.

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