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Garden Geranium growing in a garden
Annual flower

Garden Geranium plant profile

Pelargonium x hortorum

An annual flower for full sun.

Last updated .

When to plant

When to plant Garden Geranium

Zonal geraniums are tender perennials grown as annuals. UGA directs planting them outdoors as soon as the danger of frost has passed, which puts them out in spring once the weather settles.

The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.

Open Garden Geranium in my garden calendar

Shows the source-backed planting season, not frost-adjusted dates.

Growing conditions

Sun
Full sun
Lifecycle
Annual

Common problems

Watch for these

Also watch for: botrytis, pythium blackleg, oedema, whiteflies, snails.

Evidence trail

Evidence behind this profile

Original extension and institutional publications behind the planting, care, and safety facts on this page.

  1. Geraniums (Bulletin 790)

    University of Georgia Cooperative Extension. Supports general reference. Checked 2026-06-18.

  2. Toxic and Non-Toxic Plants: Geranium (Pelargonium species) entry

    ASPCA Animal Poison Control Center. Supports pet-safety verdicts for dogs and cats. Checked 2026-07-18.