Incarvillea olgae

Incarvillea olgae

Native to:
Afghanistan, Kirgizstan, Tadzhikistan, Uzbekistan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Bignoniaceae
Genus:
Incarvillea
Species:
Incarvillea olgae
USDA Symbol:
INOL

Growth Characteristics

Height:
120 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jun,jul,aug
Bloom Colors:
pink, lavender

Garden & Ecology Notes

Wildlife Value:
bees
Deer Resistant:
Yes

Soil Requirements

Soil Type:
well-drained, sandy loam
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to rocky slopes and dry areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–42 days
Notes:
Requires light for germination. Surface sow and keep moist.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society