Common Yarrow
Achillea millefolium
Through Colorado's Southern Rockies & High Plains country, a low 1.5–3 ft-tall carpet that closes ranks 1.5–2 ft wide and shades out weeds; it blooms May through Aug.
- Full sun
- Dry–average
- 1.5–3 ft
- Blooms May–Aug
Low, spreading natives that knit together to cover bare ground, smother weeds, and replace thirsty lawn or mulch. Every species here is genuinely native to Colorado and the wider flora of the Mountain West and hardy through zones 3–6 — proven performers for Colorado's semi-arid, cold winters, high sun climate across Southern Rockies & High Plains, not a generic list. Local standouts include Common Yarrow and Prairie Smoke. A living native groundcover does everything mulch does and then keeps doing it for free — covering soil, blocking weeds, and feeding wildlife as it goes. Match the spreader to the site (sun or shade, wet or dry), plant on tight centers so they close ranks in a season or two, and weed faithfully that first year while they fill in.
Each one native to your region and hardy in zones 3–6 · see this collection in other states.
Achillea millefolium
Through Colorado's Southern Rockies & High Plains country, a low 1.5–3 ft-tall carpet that closes ranks 1.5–2 ft wide and shades out weeds; it blooms May through Aug.
Geum triflorum
Through Colorado's Southern Rockies & High Plains country, settles in as a weed-suppressing carpet 12–18 in wide, no taller than 6–16 in — it flowers in Apr and May.
Parthenocissus quinquefolia
Through Colorado's Southern Rockies & High Plains country, weaves a 30–50 ft-tall mat 10–20 ft across to blanket bare ground, happy in clay, rocky, and loam soil, and it flowers in Jun.
Arctostaphylos uva-ursi
Through Colorado's Southern Rockies & High Plains country, knits across the ground 3–6 ft wide and just 4–8 in tall, no mowing needed; it flowers in Apr and May.
Bouteloua gracilis
Through Colorado's Southern Rockies & High Plains country, a mat-forming native, 8–20 in tall and 8–16 in wide, that fills in and crowds out weeds — it blooms Jun through Aug.
Rhus aromatica
Through Colorado's Southern Rockies & High Plains country, runs 5–10 ft wide and stays ankle-low at 2–6 ft, holding soil where lawn won't; it flowers in Mar and Apr.
Sporobolus heterolepis
Through Colorado's Southern Rockies & High Plains country, spreads low — 2–3 ft tall, 2–3 ft wide — to knit bare ground and smother weeds.
Seed packets, plugs, and starter plants for many of these species ship to your door.
Browse on AmazonSome links here are affiliate links — we may earn a small commission at no extra cost to you. The surest source of locally-adapted stock is a native-plant nursery or a native plant society sale in your area.