When to Plant Garden in Georgia: Frost-Free Deadlines by Plant Type

Planting your garden in Georgia at the right time means the difference between a bumper crop and a total bust — timing here is everything, and the last frost date is your golden rule.

Georgia’s warm climate throws a curveball: plant too early and frost zaps your seedlings, too late and you miss peak harvests.

With 11 frost-free zones across the state, your exact planting window depends on whether you’re in the Piedmont, Coastal Plain, or Mountains — and whether you’re growing tomatoes, collards, or perennials.

Below, I break down the ideal planting months for Georgia’s most popular crops, including how to stretch your season with row covers and soil prep tricks that actually work in 7b-8b zones.

You’ll also find a region-specific calendar so you can plant with confidence, whether you’re a first-timer or a seasoned gardener looking to fine-tune your schedule.

Georgia’s frost-free planting zones: key dates by region

Georgia’s diverse climate spans USDA zones 7b–8b, but last frost dates vary dramatically—from mid-March in the mountains to late February along the coast.

Knowing your exact frost-free zone ensures you plant warm-season crops (like tomatoes) after danger of frost and cool-season crops (like broccoli) 4–6 weeks before the first frost. Let’s break down the 11 planting zones and their critical dates to maximize your harvest.

First, find your zone using the UGA Extension’s interactive map or check your ZIP code against the USDA Plant Hardiness Zone Map. Urban areas like Atlanta (Zone 7b–8a) often experience urban heat islands, delaying frost by 1–2 weeks compared to rural areas.

Coastal regions (e.g., Savannah, Zone 8a–8b) may have no frost at all in mild winters, while the Blue Ridge Mountains (Zone 6b–7a) face earlier frosts. Adjust your planting timeline accordingly.

Here’s your zone-by-zone guide to last/first frost dates and ideal planting windows for cool-season vs. warm-season crops:

For cool-season crops like lettuce, spinach, and peas, plant 4–6 weeks before your last frost date. In Zone 8b, this means sowing seeds as early as October for a winter harvest.

In Zone 6b, wait until February to avoid frost damage. Use row covers or cold frames to extend the season by 2–4 weeks in colder zones.

Warm-season crops—such as tomatoes, peppers, and squash—require soil temperatures above 60°F. In Zone 3A, wait until May 15 to plant; in Zone 8b, you can start as early as January 15.

Test soil temperature with a soil thermometer or wait until azalea blooms (a natural indicator in Georgia) to confirm it’s safe to plant.

Microclimates play a huge role in Georgia’s gardening success. Urban areas like Atlanta and Macon often have 5–10°F warmer microclimates than rural zones, delaying frost by up to 2 weeks.

Best planting schedule for Georgia’s top 10 vegetables & herbs

Georgia’s long growing season lets you plant tomatoes, peppers, and herbs nearly year-round, but timing is everything. Warm-season crops like squash and basil need soil temps above 60°F, while collards thrive in cooler fall weather.

Below, I’ve mapped out the perfect schedule to maximize your harvest—plus Georgia-specific pest warnings to watch for.

For warm-season crops, start seeds indoors 4-6 weeks before your last frost date (usually mid-March in most of Georgia).

Transplant seedlings after April 15 once soil warms. Cool-season crops like collards and kale can go in as early as February for a spring harvest, or again in August-September for fall production.

Succession planting is key here—sow bush beans every 2 weeks from April to July for continuous harvests. And watch for squash vine borers in summer—they’ll devastate your zucchini if you’re not vigilant!

For year-round harvests, plant lettuce in fall and spring, while radishes mature in just 30 days—perfect for quick succession. My basil always thrives when planted after Memorial Day, but I’ve lost entire tomato plants to late spring frosts in the mountains.

Pro tip: Use row covers to extend your spring planting window by 2-3 weeks. And always rotate crops yearly to prevent soil-borne diseases. Georgia’s humidity means fungal issues like powdery mildew are common—space plants properly for airflow!

Save seeds from your best tomatoes and peppers for next year, but store them in a cool, dry place. I’ve had basil last until November with proper care—just pinch off flowers to keep it bushy!