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Caprifoliaceae
Trees and shrubs
Diervilla ‘Cool Splash’
Hardiness
Zone 3–7
Discover the plant
Family
Caprifoliaceae
Diervilla 'Cool Splash' is a highly prized native ornamental shrub known for its bright variegated foliage and great hardiness in difficult conditions. It forms a compact, dense, and slightly spreading shrub, perfectly suited for mass plantings, borders, embankments, and low-maintenance naturalistic plantings. Its deciduous dark green foliage edged with creamy white brightens the garden from spring to summer, then transforms into spectacular purplish-red hues in autumn. In early summer, small pale yellow flowers appear, attracting pollinators and enhancing its ecological interest. Extremely hardy and well-adapted to Quebec conditions, Diervilla 'Cool Splash' tolerates drought, poor soils, and partial shade, making it an excellent sustainable choice for structuring the landscape with color and resilience.
Soil and care
The right conditions.
Hardiness zone
Zone 3–7
Minimum temperature
-40°C
Fertilization
None necessary
Bloom and dimensions
The complete profile.
Flower color
Pale yellow
Foliage color
Dark green edged with creamy white → purplish red in autumn
Foliage type
Obsolete
Growth rate
Moderate
Bloom period
Summer
Fruiting
Small, dry, unattractive capsules
Maximum height
0.8–1 m (2.5–3 ft)
Maximum width
3–4 ft (1–1.2 m)
Its strengths, naturally.
Safe for pets
Pets
Attracts or supports pollinating insects
Pollinators
Plants that attract butterflies
Butterflies
Less attractive or generally tolerated by deer
Deer
