Leptinella squalida 'Platt’s Black'
Overview
Uses: Unique groundcover for pathways, rock gardens, between stepping stones, and container plantings. Excellent for creating soft, textural contrast in shaded or partially sunny beds.
Benefits: Low-growing, fern-like foliage with striking bronze-black tones and chartreuse tips. Forms a dense mat that tolerates light foot traffic and offers year-round texture.
USDA Hardiness Zones: 4 – 9
Sun: Full Sun to Partial Shade
Life Cycle: Herbaceous perennial
Mature Height: ~1" – 2"
Mature Width: ~6" – 12"
Growth Rate: Moderate to fast-spreading
Summary
‘Platt’s Black’ Brass Buttons is a distinctive low-growing perennial groundcover prized for its dark, almost metallic foliage that shimmers in shades of black, bronze, and olive green. Its finely cut, fern-like leaves spread to form a soft, carpet-like mat that contrasts beautifully with bright green mosses, golden sedums, and silver-gray plants.
Perfect for filling gaps between pavers or cascading gently over the edge of rocks, this compact variety adds drama and visual interest to garden paths, fairy gardens, and container compositions. Tiny yellow button-like flowers appear in summer, adding a subtle accent without distracting from the foliage color.
‘Platt’s Black’ thrives in moist, well-drained soil and partial sun, where it develops its deepest tones. Its spreading habit and adaptability make it an eye-catching yet practical choice for shaded landscapes and creative garden designs.
Care
Brass Buttons 'Platt’s Black' Care
Plant in moist, well-drained soil with good organic content. While tolerant of both full sun and partial shade, the richest color develops in cooler climates with some afternoon shade. Avoid hot, dry sites or heavy clay.
Water regularly during establishment, then maintain even moisture—‘Platt’s Black’ appreciates consistent hydration, especially in warm weather. It can handle short dry spells once mature, but prolonged drought may dull its color.
Feed lightly in spring with a slow release fertilizer to promote healthy growth and color depth. Trim or divide clumps every few years to maintain vigor and manage spread.
Size
Size of Brass Buttons 'Platt’s Black' for Sale Online
Our plants ship in greenhouse-grade grow pots and are appropriately sized for their containers. For current pot sizes and availability, please contact us.
Size of Brass Buttons 'Platt’s Black' When Mature
Expect a dense, spreading mat approximately 1" – 2" tall and 6" – 12" wide under average garden conditions.
Additional Information
What is the botanical name of Brass Buttons 'Platt’s Black'?
The botanical name is Leptinella squalida ‘Platt’s Black’.
Is Brass Buttons 'Platt’s Black' evergreen?
In mild climates, ‘Platt’s Black’ remains semi-evergreen, holding color through winter. In colder zones, it may die back and return in spring.
How fast does 'Platt’s Black' spread?
‘Platt’s Black’ spreads moderately fast by surface runners, forming a tight mat that fills gaps beautifully without becoming invasive.
Does 'Platt’s Black' tolerate foot traffic?
Yes—light foot traffic is fine, especially between stepping stones or in shaded pathways. For heavier use, interplant with other tough groundcovers.
What soil is best for 'Platt’s Black'?
Moist, well-drained soils rich in organic matter are ideal. It tolerates a range of conditions but avoids compacted or consistently dry soil.
How far apart should I plant Brass Buttons 'Platt’s Black'?
Space 6" – 8" apart for full coverage within one growing season. Wider spacing creates a more natural, patchwork look over time.
