Geranium is grown for its blooms, which open from spring through fall. Notably, it shrugs off deer. Its flowers are a moderate draw for honeybees and butterflies.
Zones
Data not available
pH Range
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Sun
Part Sun
Days to Maturity
95
Score Geranium on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether geranium actually takes — and those shift from one yard to the next. Enter your address and we'll score geranium against your land's real conditions.
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See Geranium
What Geranium is
Geranium reaches around a foot and a half at maturity. It blooms from spring through fall. It's also deer-resistant.
How to grow Geranium
Geranium does best in part sun — at least 4 hours of direct sun a day, on well-drained ground. It needs around 1,000 growing degree days to mature, which is why climate matters as much as soil.
USDA Zones
Data not available
USDA PHZM 2023
Soil pH
Data pending
USDA PLANTS Database
Sun
Part Sun
plant_species_v5.csv
Drainage
well (dry spells)
plant_species_v5.csv
Days to Maturity
95 days
plant_species_v5.csv
GDD Required
1000+
plant_species_v5.csv
Mature Height
1.5 ft
plant_species_v5.csv
Frost-Free Days
0+
plant_species_v5.csv
Start the season right
Plant geranium in part sun with at least 4 hours of direct sun, once the soil has warmed and frost risk has passed.
Match the soil
Pull a soil test from your local Extension lab to confirm pH and drainage match geranium's needs before planting.
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 geranium blooms in the cool of the morning, just as they open, for the longest display.
Good to know
One caution for pet owners — geranium is toxic to dogs and cats (mild severity). Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency. (Source: ASPCA.)
Geranium offers moderate value to bees and other pollinators. (Source: Xerces Society, Pollinator Partnership.)
Where Geranium thrives
Whether geranium 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 Geranium will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether geranium actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
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Frequently Asked Questions
Can I grow Geranium in my zone?
Zone data for geranium is being finalized. A Growable Ground report checks your parcel's full suitability against federal soil, climate, and zone data.
When should you plant Geranium?
Most growers plant geranium after the last spring frost, once the soil has warmed. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Geranium need?
Geranium does well in partial sun — around 4 hours of direct sun, and it takes some afternoon shade in stride. That flexibility makes it a good match for a bed the house or a nearby tree shades for part of the day. A Growable Ground report maps how the sun actually falls on your land, hour by hour, so you can set it where the light lines up.
What soil does Geranium need?
Specific pH data for geranium is pending. It prefers well-drained ground. A soil test from your local Extension lab confirms what your site needs.
Does Geranium attract pollinators?
Yes — geranium's flowers are a solid nectar source for honeybees and butterflies (Xerces Society, Pollinator Partnership).
Is Geranium safe for pets?
Geranium is toxic to pets (dogs,cats) with mild severity. Keep it out of reach, and call ASPCA Animal Poison Control at (888) 426-4435 in an emergency.