Bottlebrush is a tree, a long-term addition to the landscape. It's hardy across USDA zones 9 through 10 and grows just as well in a container as in the ground. Its spring flowers are a real draw for honeybees, native bees, and hummingbirds.
Bottlebrush — the short answer
Bottlebrush: grown in zones 9–10, full sun, pH 5.5–7.5.
- USDA zones
- 9–10
- Not verified
- Soil pH
- 5.5–7.5
- We haven't confirmed this against a published source yet.
- Sun
- Full Sun
- We haven't confirmed this against a published source yet.
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 on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether bottlebrush actually takes — and those shift from one yard to the next. Enter your address and we'll score bottlebrush against your land's real conditions.
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What Bottlebrush is
Bottlebrush grows as a perennial and reaches around 15 feet at maturity. It blooms red in spring. It's also well suited to containers.
Life cycle, mature height, bloom period and container suitability: We haven't confirmed this against a published source yet.
How to grow Bottlebrush
Bottlebrush grows in USDA zones 9 through 10. Bottlebrush does best in full sun — at least 6 hours of direct sun a day — and soil from pH 5.5 to 7.5, on well-drained ground.
USDA Zones
9-10
Not verified
Soil pH
5.5 - 7.5
We haven't confirmed this against a published source yet.
Sun
Full Sun
We haven't confirmed this against a published source yet.
Drainage
well (dry spells)
We haven't confirmed this against a published source yet.
Mature Height
15 ft
We haven't confirmed this against a published source yet.
Plant it right
Set bottlebrush in full sun with well-drained soil. We haven't confirmed this against a published source yet.
Match the soil
Bottlebrush prefers pH 5.5 to 7.5. We haven't confirmed this against a published source yet. 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. We haven't confirmed this against a published source yet. A 2–3 inch mulch layer holds moisture without waterlogging.
Shape it while it is young
Prune bottlebrush only to remove dead, damaged or crossing branches while it is young; it is grown for its form, not a harvest, so little more is needed once it settles in.
Where Bottlebrush thrives
Bottlebrush is hardy across USDA zones 9 through 10. 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 9–10 spans average winter lows from 20°F to 40°F (USDA PHZM 2023). Across the 50 states and DC, that band covers none outright but splits 17 down the middle — and which side of that line your land sits on changes the answer.
Zones 9–10·Where Bottlebrush growsOpen map →
This map is derived from the USDA ARS / PRISM Plant Hardiness Zone Map (2023) and is not the official USDA Plant Hardiness Zone Map.
Where Bottlebrush stands, state by state
Bottlebrush is rated for zones 9–10 — a cold floor USDA puts at 20 to 30°F. Across the 50 states and DC, 0 sit fully inside that band, the line runs through 17 more, and 34 sit outside it — and inside every split state, the same line runs on at county grain.
The line runs through
17 states
- Alaska · zones 1a-9a
- California · zones 4b-11a
- Nevada · zones 4a-10a
3 of 17 shown
Bottlebrush’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.
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
Growing guides for bottlebrush
Related plants in shrub
Good to know
Listed as non-toxic to dogs and cats by a source we can't cite. We haven't confirmed this against a published source yet.
Bottlebrush is a standout pollinator plant — high value to bees and other pollinators. We haven't confirmed this against a published source yet.
Your land is one point inside Bottlebrush'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 will thrive on your land
Zone averages are a start. Your soil pH, drainage, sun exposure, and frost dates shape whether bottlebrush actually takes. We score it against the mapped and modelled 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.
25+ data sources analyzed in seconds
How we know this about Bottlebrush
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
Frequently asked questions
Can I grow Bottlebrush in my zone?
Bottlebrush grows in USDA hardiness zones 9 through 10. Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Bottlebrush?
Set bottlebrush out in early spring or fall while it's dormant, so the roots establish before the heat of summer. Your local last-frost date — which a Growable Ground report pulls for your exact address — sets the precise window.
How much sun does Bottlebrush need?
Bottlebrush needs full sun — a spot that catches at least 6 hours of direct summer sun a day. We haven't confirmed this against a published source yet. 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 need?
Bottlebrush prefers soil pH 5.5 to 7.5, on well-drained ground. We haven't confirmed this against a published source yet. Your report scores your parcel's mapped soil against that using USDA SSURGO data.
Does Bottlebrush attract pollinators?
Yes — bottlebrush's flowers are a strong nectar and pollen source for honeybees, native bees, and hummingbirds. We haven't confirmed this against a published source yet.
Keep exploring Bottlebrush
Bottlebrush state by state
Every state bottlebrush's zone reaches — 0 link straight to that state's bottlebrush growing page; the rest open the state's full growing guide.