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Rhododendron catawbiense 'Boursault'

More About Rhododendron catawbiense 'Boursault'

  • Clusters of dark, rose-lavender, trumpet-shaped flowers with yellow blotches
  • Glossy, leathery, green leaves show some fall colour
  • Upright, rounded habit
  • Group: Elepidote
  • Bloom Time: Late midseason

Interesting Notes:

'Boursault' was hybridized by Boursault and is a Catawbiense hybrid.

Seed Parent and Pollen Parent: catawbiense hybrid or selection

Predominant Flower Colour: Purple

Elepidote: Without scales, as opposed to lepidote. Large leaf.

Lepidote: Having scales. Tiny scales typically cover the undersides of the leaves. Small leaf.

Zone:

5

Height:

125-150 cm

Spread:

150-175 cm

Colour:

Lavender
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Boursault Rhododendron Growing and Maintenance Tips

Rhododendrons require constant moisture (but not standing water), a fertile soil with a low pH and grow best in partial shade. Any pruning should be done soon after flowering to ensure bud set. Plants can benefit from protection (burlap wrap) against drying, winter winds and sun in an exposed location.


Rhododendron catawbiense 'Boursault' Characteristics

Full Sun
Full Sun
Partial Sun/Shade
Partial Sun/Shade
Full Shade
Full Shade
Evergreen
Evergreen
Rock garden
Rock garden

Soil Moisture

Well-drained
Moist to Average
Average to Dry Soils

Growth Rate

Slow

Attributes

Fall Color

Flowering Time

Spring

Habit

Rounded

Foliage Color

Green

Landscape uses

Specimen
Foundation planting