hybrid rhododendron

Rhododendron vanhoeffeni

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ericaceae
Genus:
Rhododendron
Species:
Rhododendron vanhoeffeni
USDA Symbol:
RHVA5

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
150 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
may,jun
Bloom Colors:
white, pink
Landscaping Shrub:
Yes

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
4.5 - 6.0 (acidic to slightly acidic)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
native to montane regions, prefers organic matter

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–60 days
Notes:
Seeds require light for germination; surface sow on moist peat-based medium.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Requires light or the seed is very fine. Surface sow and expose to light. * sprinkle seed on 10 cm damp sphagnum moss; cover with clear plastic pop bottle cut in half; transplant seedling to acidic mix in shade outdoors when 5 cm high; protect from rodents and give protection in cold frame first winter

Source: Ontario Rock Garden & Hardy Plant Society