Hardy Geranium is grown for its blooms, which open in summer. It's hardy across USDA zones 3 through 9 and shrugs off deer. Its summer flowers are a moderate draw for honeybees and native bees.
Zones
3-9
pH Range
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Sun
Part Sun
Days to Maturity
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Score Hardy Geranium on your exact land.
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What Hardy Geranium is
Hardy Geranium reaches around a foot and a half at maturity. It blooms in summer. It's also deer-resistant.
How to grow Hardy Geranium
Hardy Geranium grows in USDA zones 3 through 9. Hardy Geranium does best in part sun — at least 4 hours of direct sun a day, on well-drained ground.
USDA Zones
3-9
USDA PHZM 2023
Soil pH
Data pending
USDA PLANTS Database
Sun
Part Sun
Growable Ground plant catalog
Drainage
well (dry spells)
Growable Ground plant catalog
Mature Height
1.5 ft
Growable Ground plant catalog
Frost-Free Days
0+
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 hardy geranium in part sun with at least 4 hours of direct sun.
Match the soil
Pull a soil test from your local Extension lab to confirm pH and drainage match hardy 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 hardy geranium blooms in the cool of the morning, just as they open, for the longest display.
Good to know
Good news for pet owners — hardy geranium isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Hardy Geranium offers moderate value to bees and other pollinators. (Source: Pollinator Partnership.)
Where Hardy Geranium thrives
Hardy Geranium is hardy across USDA zones 3 through 9. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
Zones 3–9·Where Hardy Geranium growsOpen map →
On USDA hardiness-zone overlap, Hardy Geranium can grow in these states:
See if Hardy Geranium will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether hardy 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 Hardy Geranium in my zone?
Hardy Geranium grows in USDA hardiness zones 3 through 9 (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 Hardy Geranium?
Time hardy geranium to your own season rather than the calendar. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Hardy Geranium need?
Hardy 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 Hardy Geranium need?
Specific pH data for hardy geranium is pending. It prefers well-drained ground. A soil test from your local Extension lab confirms what your site needs.
Does Hardy Geranium attract pollinators?
Yes — hardy geranium's flowers are a solid nectar source for honeybees and native bees. (Source: Pollinator Partnership.)
Is Hardy Geranium safe for pets?
Hardy Geranium is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)