Plant library
Ground cover
Crowberry
Empetrum nigrum
Zones 1–6
A hardy arctic-alpine evergreen subshrub that forms dense, low mats of needle-like foliage, thriving where almost nothing else will grow.
Sun
Full sun to part shade
Water
low
Spacing
18-24 in apart; mats spread 2-3 ft
Soil
Sandy or rocky, acidic soil (pH 4.5-6.0)
Difficulty
moderate
Zones
1–6
When to plant
See care notes for timing in your zone.
Timing shifts with your zone — the Genie can pin down exact dates for you.
How to care for it
Plant in early spring as soon as soil can be worked. Prefers poor, sandy or rocky soil with excellent drainage — do not fertilize. Water only during establishment; it survives on snowmelt and rain.
Good companions
Bearberry, lingonberry, lowbush blueberry, and other acid-loving arctic natives
Harvest
Pick small black berries in late summer when fully dark; use fresh or freeze for juices and preserves.
Want a plan for growing Crowberry?
Your Genie can give exact timing and care for your zone.
