Calibrachoa is an annual grown for its blooms, which open from spring through fall. Notably, it grows just as well in a container as in the ground. Its flowers are a moderate draw for honeybees, butterflies, and hummingbirds.
Zones
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pH Range
5-6.5
Sun
Full Sun
Days to Maturity
55
Score Calibrachoa on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether calibrachoa actually takes — and those shift from one yard to the next. Enter your address and we'll score calibrachoa against your land's real conditions.
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What Calibrachoa is
Calibrachoa grows as an annual and reaches around 6 inches at maturity. It blooms from spring through fall. It's also well suited to containers.
How to grow Calibrachoa
Calibrachoa does best in full sun — at least 6 hours of direct sun a day — and soil from pH 5 to 6.5, on well-drained ground. It needs around 1,200 growing degree days to mature and a growing season of at least 60 frost-free days, which is why climate matters as much as soil.
USDA Zones
Data pending
Soil pH
5 - 6.5
USDA PLANTS Database
Sun
Full Sun
Growable Ground plant catalog
Drainage
well (dry spells)
Growable Ground plant catalog
Days to Maturity
55 days
Growable Ground plant catalog
GDD Required
1200+
Growing degree-days of accumulated warmth it needs to mature — humid summers reach this faster than cool coastal ones.
Growable Ground plant catalog
Mature Height
0.5 ft
Growable Ground plant catalog
Frost-Free Days
60+
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 calibrachoa in full sun with at least 6 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Calibrachoa prefers pH 5 to 6.5 (Growable Ground Plant Database). 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.
Harvest at its peak
Cut calibrachoa blooms in the cool of the morning, just as they open, for the longest display.
Good to know
Good news for pet owners — calibrachoa isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Calibrachoa offers moderate value to bees and other pollinators. (Source: Pollinator Partnership.)
Where Calibrachoa thrives
Whether calibrachoa thrives on a given site comes down to its soil pH, drainage, sun, and frost dates — the conditions that vary parcel to parcel.
See if Calibrachoa will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether calibrachoa 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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Frequently Asked Questions
Can I grow Calibrachoa in my zone?
Zone data for calibrachoa is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.
When should you plant Calibrachoa?
Most growers plant calibrachoa after the last spring frost, once the soil has warmed, leaving enough of the season for its 60-day frost-free need. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Calibrachoa need?
Calibrachoa 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 Calibrachoa need?
Calibrachoa prefers soil pH 5 to 6.5, on well-drained ground (Growable Ground Plant Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Calibrachoa attract pollinators?
Yes — calibrachoa's flowers are a solid nectar source for honeybees, butterflies, and hummingbirds. (Source: Pollinator Partnership.)
Is Calibrachoa safe for pets?
Calibrachoa is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)