Heuchera 'Dark Secret' is a dramatic variety prized for its deeply lobed dark purple to near black foliage with a slightly ruffled edge. Compact and adaptable, adds bold contrast to shaded borders and containers throughout the growing season.
Height & Spread: 12 - 15 in x 18 - 24 in
Bloom Time: Early to midsummer
Light Requirements: Part shade to full shade
Soil Preference: Well drained, humus rich soil with consistent moisture
Watering Needs: Moderate; thrives with regular watering, especially in dry periods
Deer Resistance: High
Native Status
This cultivar is derived from North American native Heuchera species and is bred for exceptional foliage color and garden performance.
Wildlife & Insects
Butterflies
- Attracts butterflies such as Eastern Tailed Blues and Red Admirals that feed on its nectar bearing blooms.
Bees
- Frequently visited by native bumblebees and sweat bees during its summer bloom period.
Beneficial Insects
- Supports hoverflies and parasitic wasps that contribute to natural pest control in shade garden environments.
Spacing & Landscape Use
Spacing Recommendations
- Space 18 - 24 in apart to allow for natural mounding and to maintain good air circulation.
Landscape Placement
- Ideal for mixed shade borders, beneath deciduous trees, or in decorative containers where its foliage provides strong color contrast.
Companion Plants
- Hosta 'Halcyon' (Hosta) - Offers cool blue green tones that contrast beautifully with the dark foliage of 'Dark Secret'.
- Ferns (Assorted Woodland Ferns) - Add a delicate texture and soften the bold leaves of the Heuchera.
- Brunnera macrophylla 'Jack Frost' (Siberian Bugloss) - Silver veined leaves provide a shimmering contrast in the shade garden.
- Tiarella 'Sugar and Spice' (Foamflower) - Brightly patterned foliage and white flower spikes add contrast and native harmony.
- Astilbe 'Visions in Red' (False Spirea) - Deep pink to red plumes echo the dark foliage while adding vertical flower interest.