🌸 When to Plant Geraniums

🌸 Flower
Warm Season

Long-blooming; overwinter indoors; deadhead for continuous color; drought-tolerant once established

📅 Planting Calendar by USDA Zone

Select your zone to highlight your exact planting dates. Dates are calculated from each zone's average frost dates.

Find my zone
Zone Last Frost Start Indoors Transplant Direct Sow
Zone 2A May 30 Mar 7 May 30
Zone 3B May 15 Feb 20 May 15
Zone 4A May 8 Feb 13 May 8
Zone 4B May 1 Feb 6 May 1
Zone 5A Apr 25 Jan 31 Apr 25
Zone 5B Apr 18 Jan 24 Apr 18
Zone 6A Apr 21 Jan 27 Apr 21
Zone 6B Apr 10 Jan 16 Apr 10
Zone 7A Apr 5 Jan 11 Apr 5
Zone 7B Mar 28 Jan 3 Mar 28
Zone 8A Mar 20 Dec 26 Mar 20
Zone 8B Mar 12 Dec 18 Mar 12
Zone 9A Feb 28 Dec 6 Feb 28
Zone 9B Feb 15 Nov 23 Feb 15
Zone 10A Feb 1 Nov 9 Feb 1
Zone 10B Jan 15 Oct 23 Jan 15
Zone 11A Jan 1 Oct 9 Jan 1

Garden geraniums (Pelargoniums) are some of the longest-blooming annuals available — and unlike most annuals, you can overwinter them indoors for years.

Top Growing Tips

  • Start from seed 12-16 weeks before last frost for first-year blooms
  • Deadhead spent flower clusters to prevent seed development and extend bloom
  • Overwinter by bringing pots inside before frost; keep barely moist
  • Take 4-inch stem cuttings in late summer to propagate for next year
  • Scented-leaf varieties (lemon, rose, nutmeg) are especially aromatic

Companion Planting

Good companions: roses, marigolds, petunias

Avoid planting near: Overwatering — most common cause of decline

Harvest Timeline

Ornamental; harvest scented leaves anytime for culinary or aromatic use