Leptinella Squalida 'Platt's Black'

Brass Buttons 'Platt's Black'

Leptinella squalida ‘Platt’s Black’ (Black Brass Buttons) is a low-growing, mat-forming perennial groundcover with a spreading habit. It features finely textured, fern-like foliage in deep bronze to nearly black tones, creating a dense carpet. Small, button-like yellow-green flowers appear in late spring to early summer, adding subtle interest. This plant is valued for its unique foliage color and ability to fill in spaces between stepping stones or along pathways.

Type: Perennial
Mature Size: 18–36" W × 1–2" H
USDA Zones: 4a–10b
Form: Spreading, mat-forming

Light: Full sun to part shade
Soil / Water: Well-drained, humus-rich soils; moderate water, prefers consistent moisture but tolerates light drought once established
Bloom Time / Length: Late spring to early summer; short (2–3 weeks)

Wildlife: Minimal pollinator interest

Features & Landscape Uses:
Excellent as a groundcover, lawn alternative, or between stepping stones and pavers. Adds dramatic contrast with its dark foliage and works well in rock gardens and edging applications.

Care:
Trim lightly to maintain a dense mat and prevent overgrowth into unwanted areas. Benefits from occasional watering during dry periods. Avoid overly wet, poorly drained soils in winter.

Plant type

Perennial

Height

1-2''

Width

18-36"

Hardiness zones

4–10

Sunlight

Full Sun, Partial Shade

Growth rate

Moderate

Bloom time

Early Summer, Late Spring

Leaf color

Dark Sea Green

Soil

Humus rich, Well Drained

Landscape use

Groundcover

Shape

Mat forming, Spreading

Drought tolerant

No