Bottlebrush Grass is a cover crop — grown to build and protect the soil rather than for a harvest of its own. It's hardy across USDA zones 5 through 8.
Bottlebrush Grass — the short answer
Bottlebrush Grass: grown in zones 5–8, full sun, pH 5–8.2.
- USDA zones
- 5–8
- Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
- Soil pH
- 5–8.2
- FAO ECOCROP
- Sun
- Full Sun
- Growable Ground Plant Database
- Frost-kill temperature
- 30.2°F
- FAO ECOCROP
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.
Score Bottlebrush Grass on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether bottlebrush grass actually takes — and those shift from one yard to the next. Enter your address and we'll score bottlebrush grass against your land's real conditions.
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What Bottlebrush Grass is
Bottlebrush Grass grows as a perennial. It blooms in summer.
How to grow Bottlebrush Grass
Bottlebrush Grass grows in USDA zones 5 through 8. Bottlebrush Grass does best in full sun — at least 6 hours of direct sun a day — and soil from pH 5 to 8.2, on well-drained to fast-draining ground. It needs a growing season of at least 90 frost-free days, which is why climate matters as much as soil.
USDA Zones
5-8
USDA PHZM 2023
Soil pH
5 - 8.2
FAO ECOCROP
Sun
Full Sun
Growable Ground plant catalog
Drainage
well (dry spells), excessive (dry/moderately dry)
Growable Ground plant catalog
Frost Kill Temperature
30.2°F
Where cold starts killing growing tissue. Not a winter-survival floor — a dormant perennial takes far colder, which its hardiness zone answers.
FAO ECOCROP
Minimum Growing Temperature
35.6°F
Below this it stops growing rather than dies — a pace limit, not a survival limit.
FAO ECOCROP
Frost-Free Days
90+
The frost-free stretch it needs start to finish — short-season areas may need an indoor head start.
Growable Ground plant catalog
Start the season right
Plant bottlebrush grass in full sun with at least 6 hours of direct sun. It grows in the cool halves of the year, so sow it in spring or late summer rather than waiting for midsummer heat.
Match the soil
Bottlebrush Grass prefers pH 5 to 8.2 (FAO ECOCROP). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.
Water steadily
Keep the root zone evenly moist through establishment. A 2–3 inch mulch layer holds moisture without waterlogging.
Turn it in before it seeds
Cut bottlebrush grass down or turn it into the soil before it sets seed, while the growth is still green — that's when it returns the most to the ground.
Where Bottlebrush Grass thrives
Bottlebrush Grass is hardy across USDA zones 5 through 8. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 5–8 spans average winter lows from -20°F to 20°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 19 outright and splits 31 more down the middle — and which side of that line your land sits on changes the answer.
Zones 5–8·Where Bottlebrush Grass growsOpen map →
Where Bottlebrush Grass stands, state by state
Bottlebrush Grass is rated for zones 5–8 — a cold floor USDA puts at -20 to -10°F. Across the 50 states and DC, 19 sit fully inside that band, the line runs through 31 more, and 1 sits outside it — and inside every split state, the same line runs on at county grain.
Fully inside zones 5–8
19 states
3 of 19 shown
The line runs through
31 states
3 of 31 shown
Bottlebrush Grass’s band covers part of each of these states — which side of the line your county sits on changes the answer, and each state page draws it.
Outside zones 5–8
1 state
- North Dakota · zones 3b-4b
Winter cold is the limit here — the same plant often works in a container that comes under cover. Each link is that state’s own growing hub.
State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.
What grows around Bottlebrush Grass
Growing guides for bottlebrush grass
In rotation planning, bottlebrush grass counts as a Grass — beds recover best when grass crops don’t follow each other in the same spot year over year. (Growable Ground derivation — crop-rotation group from botanical family)
Good to know
Good news for pet owners — bottlebrush grass isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Bottlebrush Grass isn't classified as a notable pollinator plant in our data — pair it with high-value bloomers nearby to feed bees.
Your land is one point inside Bottlebrush Grass's range
This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.
See if Bottlebrush Grass will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether bottlebrush grass actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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How we know this about Bottlebrush Grass
The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.
Grounded inUSDA PLANTS Database•USDA PHZM•ASPCA
Frequently asked questions
Can I grow Bottlebrush Grass in my zone?
Bottlebrush Grass grows in USDA hardiness zones 5 through 8 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Bottlebrush Grass?
Bottlebrush Grass is a cool-season crop, so it goes in during the cool halves of the year — early spring, and again in late summer for a fall planting — rather than at the height of summer heat. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Bottlebrush Grass need?
Bottlebrush Grass needs full sun — a spot that catches at least 6 hours of direct summer sun a day. In more shade it still grows, but usually gives a smaller, later crop. The catch is that a yard rarely gets even light everywhere — a fence, the house, or one tall tree can quietly take those hours. A Growable Ground report reads the real sun-hours across your land, canopy and buildings included, so you can pick the brightest bed before you plant.
What soil does Bottlebrush Grass need?
Bottlebrush Grass prefers soil pH 5 to 8.2, on well-drained to fast-draining ground (FAO ECOCROP). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Bottlebrush Grass attract pollinators?
Bottlebrush Grass isn't classified as a notable pollinator plant in our data. Pairing it with high-value bloomers nearby keeps bees and butterflies fed.
Is Bottlebrush Grass safe for pets?
Bottlebrush Grass is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)