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Carolina Native’s Evergreen Rhododendron Cheat Sheet





Size

Bloom Time

Bloom Description

Characteristics, etc

Best Link with Photos

R. arborescens

Sweet

Up to 15’

May to August

White with red pistils, sometimes yellow or yellow splotches, very fragrant

Shiny, dark green leaves, very hardy

Mt. Cuba

R. alabamense

Alabama

5-6’

April, May

White to White with yellow blotches, fragrant

Stoloniferous, Southern, Zones 6-8

Auburn University

R. atlanticum

Coastal, Dwarf

4-8’

April-May

White, sometimes flushed with pink

Leaves have a distinctive blue tint, Zones 5-8

N.C. State University

R. austrinum

Florida Flame

8-10’

April-May

Yellow, gold, light orange, not fragrant

Large leaves, hardy, zones 6-9

Floridata

R. calendulaceum

Flame, Honeysuckle

Up to 12’

Mid-summer

Varies from Yellow to bright orange, can hold blooms for weeks

Zones 5-7, can’t handle heat

Lady Bird Johnson Wildflower Center

R. canadense

Rhodora

3-4’

April to May

Pink to purple, not fragrant

Stoloniferous, moist sites, Zones 3-6

Go Botany

R. canescens

Piedmont, Hoary

10-15’

Early Spring

Pink to rose, fragrant sweet to musky

Stoloniferous and big

Zones 5-9



Lady Bird Johnson Wildflower Center

R. cumberlandense

Cumberland

Up to 10’

May

Orange to Red

Leaves out later than Flames, Zones 4-8

American Rhododendron Society Mass. Chapter

R. flammenum

Oconee

6-8’

April-May

Yellow to orange to red, non-fragrant

Zones 6-7

Missouri Botanical Gardens

R. periclymeniodes

Pinxterbloom

4-12’

Late to mid- season

Usually pale pink but can be white to deeper purple, slightly fragrant

Stoloniferous, found all over eastern US

Missouri Botanical Garden

R. prinophyllum

Roseshell

4-8’

May to June

Mostly pink to dark pink, slightly fragrant

Cooler, upland ranges from Va. To New England

Go Botany

R. prunifolium

Plumleaf

Up to 20’

Late July –August

Orange red to red, not fragrant

Great fall ccolor, Zones 5-8

N.C. State University

R. vaseyi

Pinkshell

5-10’

May

Pink, rarely white and not fragrant

Native to NC mountains, high altitude, not heat tolerant

Mt. Cuba

R. viscosum

Swamp

3-8’

Early Summer

Small, white, fragrant

Zones 4-6, sometimes called catch-fly or clammy azalea

Missouri Botanical Gardens

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