Annual Geranium (Pelargonium) in Zone 11a & 11b

Pelargonium hortorum

When to plant annual geranium (pelargonium) in zone 11b

Zones 11a and 11b share the same average frost dates in our data, so this page covers both.

Method: Start indoors: Start indoors from seed, then transplant outside. Annual Geranium (Pelargonium) needs a head start most zones can't give it by direct-sowing alone.

Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 1-1.5 ft.

Annual geranium is the classic bedding and container plant most gardeners know from nursery six-packs, but it's grown here from seed instead, which means starting well ahead of the season rather than buying an already-blooming plant.

How annual geranium (pelargonium) fits zone 11's season

Zone 11b is frost-free in this dataset, so frost is not what limits the calendar here. What you can plant, and when, comes down to summer heat and daylength instead.

Good companions

No standout companions recorded yet for Annual Geranium (Pelargonium).

Where to buy annual geranium seeds

• Botanical Interests
• True Leaf Market
• Burpee
• High Mowing Organic Seeds

See why we recommend these suppliers →

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See it growing

Search YouTube for "growing annual geranium (pelargonium)" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)

← Back to the full zone 11b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →

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Growing Annual Geranium (Pelargonium) in USDA zone 11b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.

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