Perennials

Leptinella 'Platt’s Black'

Black brass buttons

Also known as: Leptinella squalida 'Platt’s Black' · Leptinella potentillina 'Platts Black' · Cotula 'Platt’s Black'

Platt’s Black brass buttons showing its finely divided dark foliage. wallygrom / CC BY-SA 2.0. Cropped to emphasize the plant

Bronzy-black, fernlike leaves form a low spreading carpet. Lift and divide patches in spring or early fall.

At a glance

Sun: Full sun to part shade
Mature size: Height: 1–2 in. · Spread: 10–12 in.; spreads farther
Water: Average to moist
Hardiness: USDA zones 5–9
Bloom: Small green flowers; summer.

Sizes & prices

4.5"$11.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Drought: Do not allow to dry out completely.
Wet soil: Moist but draining soil.
Clay soil: Suitable with appropriate drainage.
Traffic: Tolerates foot traffic better than many flowering groundcovers.

Seasonal interest

Foliage: Evergreen in suitable conditions.

Growing & care

Spread: Keep clear of small, slow-growing neighbors.

Sources & photo credits

Perennials.com

Botanical name: Kew Science.

Photo: wallygrom / CC BY-SA 2.0; cropped to emphasize the plant, resized and converted to WebP · CC BY-SA 2.0

Image notes: Platt’s Black brass buttons showing its finely divided dark foliage. wallygrom / CC BY-SA 2.0. Cropped to emphasize the plant, resized and converted to WebP.

Reviewed September 19, 2026. Growing conditions vary by location.