When to Plant Hydrangeas in Georgia

Hydrangeas (Hydrangea spp.) are among the most spectacular summer-blooming shrubs, with large mophead, lacecap, or panicle flower clusters lasting weeks in the garden and drying beautifully for arrangements. Native to Asia and North America alike, the genus spans several garden species with different hardiness and blooming habits. Panicle hydrangeas (H. paniculata, e.g., Limelight) are the most cold-hardy (Zone 3) and most reliable bloomers; smooth hydrangeas (H. arborescens, e.g., Annabelle) are equally tough. Bigleaf hydrangeas (H. macrophylla) are prized for blue/pink color-shifting blooms but require reliable snow cover or winter protection in Zones 5–6. Flower color in macrophylla types is determined by soil pH (acidic = blue, alkaline = pink).

Georgia spans USDA hardiness zones 7b, 8a, 8b, 9a (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

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Click your county for exact Hydrangeas planting dates based on your local frost dates.

Hover over a county to see details. Click to view planting guide.

Hydrangeas Planting Calendar for Georgia

▸ Zone 7b ~235 day growing season · Full guide →

Last frost: March 18 · First frost: November 8 · 235 day season

Activity	When	Date Range
Start Indoors	January 7	Jan 7 – Jan 21
Transplant Outdoors	March 18	Mar 18 – Apr 1
Bloom	May 27	May 27 – Sep 23

▸ Zone 8a ~255 day growing season · Full guide →

Last frost: March 8 · First frost: November 18 · 255 day season

Activity	When	Date Range
Start Indoors	January 4	Jan 4 – Jan 18
Transplant Outdoors	March 8	Mar 8 – Mar 22
Bloom	May 17	May 17 – Sep 20

▸ Zone 8b ~276 day growing season · Full guide →

Last frost: February 25 · First frost: November 28 · 276 day season

Activity	When	Date Range
Start Indoors	December 24	Dec 24 – Jan 7
Transplant Outdoors	February 18	Feb 18 – Mar 4
Bloom	April 29	Apr 29 – Sep 2

▸ Zone 9a ~303 day growing season · Full guide →

Last frost: February 10 · First frost: December 10 · 303 day season

Activity	When	Date Range
Start Indoors	December 16	Dec 16 – Dec 30
Transplant Outdoors	January 27	Jan 27 – Feb 10
Bloom	April 7	Apr 7 – Jul 28

Growing Tips for Georgia

Plant container-grown specimens in spring or fall, spacing at least 3–5 feet apart to allow for mature shrub spread. Most hydrangeas prefer morning sun with afternoon shade, especially in Zones 7+. Keep consistently moist — the name derives from the Greek for water vessel. Prune panicle and smooth types in late winter/early spring (they bloom on new wood). Prune bigleaf types only lightly after bloom; cutting stems in fall removes next year's buds. In Zone 5–6, protect bigleaf varieties with burlap or wire cages filled with leaves over winter. Fall planting (Zones 5+) gives excellent root establishment before summer heat. Year 2+ plants reach full size and bloom.

Hydrangeas in Other States

Frequently Asked Questions

When should I plant Hydrangeas in Georgia?

Planting dates for Hydrangeas in Georgia depend on your USDA zone. Georgia spans zones 7b, 8a, 8b, 9a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Georgia for planting?

Georgia contains USDA hardiness zones 7b, 8a, 8b, 9a. Your specific zone depends on your location within the state — northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

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