My Deer Garden

Is Annual Geranium deer resistant?

Pelargonium x hortorum

Red annual geranium flower cluster
Photo, CC BY-SA 3.0. Via Wikimedia Commons.
Occasionally damaged

Browsed where deer pressure is high. Protect it.

Rating source: Rutgers NJAES E271

Toxic to cats and dogs if eaten

About Annual Geranium

Sometimes browsed, which surprises people who bought it as deer-resistant bedding. The scented-leaf zonal pelargonium is aromatic enough to put most deer off, but under pressure it gets eaten. The confusion is in the name. What everyone calls a geranium is Pelargonium, a tender South African plant grown as summer bedding. True hardy Geranium, the cranesbills, is a different genus entirely, perennial to zone 3 or 4, and considerably more deer-resistant. If you want the reliable version, ask for cranesbill or hardy geranium by name. Bloody cranesbill and the Rozanne types are ignored almost completely and come back every year. Pelargoniums overwinter indoors easily if you cut them back hard and keep them nearly dry.

Soil and care

Soil pH
6 to 7
Drainage
Well drained
Water
Moderate
Fertility
Moderate
Spacing
12 to 18 in apart
Growth rate
Fast
Maintenance
Moderate

Tolerances and uses

Drought
Moderate
Salt
Moderate
Pollinators
Low
  • Containers

Deer-resistant alternatives to Annual Geranium

Same plant type, hardy in the same zones, but rated better on the Rutgers scale. If Annual Geranium keeps getting eaten, these go in the same spot.

Similar to Annual Geranium

Other annuals with the same deer rating.

Protecting Annual Geranium

Whether this survives comes down to local pressure, so it is worth knowing the options before it gets browsed rather than after.

Where Annual Geranium grows

Hardy across most of these 51 states on zone range alone. Mountain and coastal areas sit outside the ranges used here, so check your own zone before ordering.

Browse from here

Every list Annual Geranium belongs to.

Hardy in these zones

Common questions about Annual Geranium

Is Annual Geranium deer resistant?
Annual Geranium (Pelargonium x hortorum) is rated Occasionally Severely Damaged on the Rutgers NJAES four-tier scale. Browsed where deer pressure is high. Protect it.
What hardiness zones does Annual Geranium grow in?
Annual Geranium is hardy in USDA zones 2 to 11. Outside that range it will either not survive winter or will struggle with summer heat.
Does Annual Geranium grow in shade?
Yes. Annual Geranium tolerates part shade, which makes it one of the options for a shaded bed where deer also browse.
How big does Annual Geranium get?
Mature height is roughly 12–24 in. Growth rate is fast.
When does Annual Geranium bloom?
Annual Geranium flowers from May–October.
Is Annual Geranium toxic to dogs or cats?
Yes. The ASPCA lists Annual Geranium as toxic to cats, dogs, and horses. Site it away from where animals graze, or choose something else if you have a dog that chews.