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Rhodora

Rhododendron canadense

Also called Canada Rhododendron, Canadian Rhododendron

Rhodora
Photo: Unknown author, CC BY-SA 3.0

Rhodora is a small, deciduous, native shrub of northeastern North America, valued for its early spring purple flowers that appear before the leaves. It needs moist, acidic soil, much like a bog plant, to do well.

Family
Ericaceae (Heather family)
Grows as
Shrub
Light
Full sun, Part shade
Water
Keep the soil consistently moist, especially in summer, but avoid waterlogging.
Soil
Moist, acidic, humus-rich soil such as peat-based mix or woodland soil with a pH of about 4.5 to 5.5.
Temperature
Hardy to around -35 °C; best kept cool with protection from hot, dry summer conditions.
How easy
Moderate
Safety
Toxic: All parts of rhododendrons contain grayanotoxins, which can cause nausea, vomiting, and heart rhythm problems if eaten.. Toxic to cats and dogs (ASPCA).
Native range
E. Canada to NE. U.S.A.
Climate
temperate

About

Rhododendron canadense, the rhodora or Canada rosebay, is a deciduous flowering shrub that is native to northeastern North America.

Where it grows

The wild distribution of the rhodora begins at its easternmost extreme in Canada in Newfoundland and extends into eastern Ontario and the United States, where it has its most famous home in New England and also occurs naturally in New York, New Jersey, and at high altitudes in the Appalachian Mountains further south to Pennsylvania. It thrives in the moist, acidic soils of bogs, swamps, and clearings in woodlands.

Other Rhododendron plants

Rhododendron album · Rhododendron anthopogon · Rhododendron argyrophyllum · Rhododendron augustinii · Rhododendron bureavii · Rhododendron calophytum · Rhododendron calostrotum · Bell Flowered Rhododendron · Bent-style rhododendron · Catawba rosebay · Georgian Snow Rose · Dahurian Rhododendron

Text excerpted from the Wikipedia article Rhododendron canadense by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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