When to Sow Asian Greens in Georgia

Georgia gardeners get two shots at Asian greens: a spring sowing that starts in late winter, and a fall sowing that begins in late summer and runs into the cool months. Fall is the stronger of the two. The dates below hang on Atlanta’s frost data, so treat them as a starting line and adjust for your part of the state. For variety picks, see The Best Asian Greens for Georgia.

The short answer for Georgia

Sow Asian greens in two windows: late winter to early spring, timed around the last spring frost, and late summer through fall, counted back from the first fall frost. At the Atlanta reference station, the last spring freeze falls between March 11 and March 29, and the first fall freeze between November 13 and December 1.

Those dates are probabilities, not forecasts. They come from the NOAA NCEI 1991-2020 Climate Normals and describe the 30 to 70 percent band for a 32°F freeze. Inside that band, a freeze after the early date is still a coin flip. Plan for the hard freeze that sometimes shows up late, and you will rarely lose a bed to it.

Spring: start early, finish before the heat

Mizuna, tatsoi and bok choy take a light frost far better than tomatoes do, which is why the spring window opens before the last-frost band closes. Sow in late winter and keep a sheet of row cover handy for the nights when the forecast dips. The window closes from the other end. Once the days lengthen and warm up, these plants bolt, sending up flower stalks and turning bitter. A spring sowing is a short, quick crop here, not a long one.

Fall: the longer, kinder window

Fall gives you more room. The first-freeze band does not open until November 13, and the coldest month’s mean daily minimum in the Atlanta normals is 35.6°F. That number is the average overnight low in the coldest stretch of the year, not a record low, but it tells you winter nights in the reference area hover near the edge of freezing instead of far below it. Greens sown in late summer have weeks of mild growing weather, and many keep producing well past the first frost. Sow in small batches every couple of weeks so the harvest does not arrive all at once.

For the full growing routine, from soil prep to harvest, the broader guide to Growing Asian Greens in Georgia covers what a calendar cannot.

What will not work here

Cold is not Georgia’s problem. With a first-freeze band that opens November 13 and a last-freeze band that closes by March 29, the frost-free stretch in the reference data is long. What fails here is heat, and the habit of sowing by the calendar when the soil says otherwise.

Start with the late-spring sowing. Seed scattered in May expecting a repeat of April tends to germinate unevenly in hot soil, then bolt before the plant has built much leaf. Bok choy and tatsoi are cool-season crops, and a Georgia summer is not one.

Slow, heading types struggle at the other end of the year. Napa cabbage wants time to form a head before the cold deepens. Sown in late October or November, it sits in short, cool days and stalls well short of a harvestable head. Fast leaf types such as mizuna or baby bok choy are far more forgiving of a late start, so if you are behind schedule, switch to those.

Humidity defeats close spacing. The thick, crowded rows that work in a dry climate hold moisture against the leaves in Georgia, which invites fungal disease and gives slugs a place to hide. Spread plants wider than the seed packet’s minimum, water at the base in the morning so leaves dry quickly, and thin seedlings early.

Weekly deep watering is another habit that fails. Asian greens root shallowly, and whether your soil is red clay in the Piedmont or sandy ground on the coastal plain changes how fast it dries out. Shallow, frequent watering during germination and early growth does better than one big soak.

Last, do not read 35.6°F as a promise of safety. It is a mean daily minimum for the coldest month, and the hardiness zone behind it is built on the average annual extreme minimum, which is a much colder number. Cold snaps still happen. Keep row cover on hand from November through March, because one clear, windless night can flatten a bed that has been fine for weeks.

What changes across Georgia

Georgia is not one garden. The USDA Plant Hardiness Zone Map (2023 edition, built on 1991-2020 normals) places the state anywhere from zone 6a to zone 9b. That means there is no single sowing date that fits Blue Ridge mountain towns and the coast at the same time.

The zone number measures one thing only: the average annual extreme minimum temperature. It says nothing about summer heat, frost dates or rainfall, so use it as a rough guide to how cold your winters can get, not as a planting schedule. To find your own zone, look up your location on the USDA map instead of guessing from a neighbor’s garden or a state average.

North Georgia and the mountains freeze several weeks earlier in fall. If you garden there, or at higher elevation, move your fall sowing earlier so the plants are established before the first freeze arrives, and expect the spring window to open later than the Atlanta dates. Cold frames and row cover will carry you a long way, but they cannot rescue a bed sown too late.

The coastal plain runs milder. Fall sowing there can slide later, since freezes arrive later and heat lingers into autumn, and winter harvests are easier to keep going. The tradeoff is the spring side, where warmth arrives sooner and the bolting window closes sooner, so get spring seed in the ground at the early end of the range.

Where to check this for your own county

The best next stop is University of Georgia Extension, the state’s land-grant extension service. It runs county offices across the state, staffed by agents who know the local soil, the local pests and the dates that actually work where you live.

What to look for there is specific. First, a local vegetable planting calendar for your county or region, which will give sowing dates tuned to your area instead of a statewide estimate. Second, any variety trials run near you, because a cultivar that performed well in a county with similar soil and humidity is a safer bet than one that looked good in a catalog. Third, the county office’s contact details, since an agent can often tell you how this year’s weather is running against the average.

A county recommendation beats a state one, and this page is the state one. It is built from Atlanta reference data and a statewide hardiness range, and it cannot see your slope, your soil or your shade. It also does not include a Georgia extension calendar written specifically for Asian greens, so if the extension service publishes one for your county, follow that and treat the dates here as a cross-check.

Checking this against your own garden

Your own observations outrank every date above. Two are worth watching, and neither needs equipment.

• Soil warmth by feel. Push your hand into the bed in the morning. In spring, soil that still feels cold and clammy means germination will be slow, and a few days of waiting costs you little. In late summer, soil that feels hot to the touch means seedlings will struggle, so shade the bed or hold off a week.
• The first true leaves. After sowing, watch the seedlings. The first true leaves, the ones that look like the mature plant instead of the rounded seed leaves, show how the bed is doing. Fast, sturdy growth means the timing was right. Tall, leggy, pale seedlings mean too much warmth or too little light.

Keep notes for a season: the sowing date, when the first true leaves appeared, the date of your first freeze. After one year you will have a calendar written for your own yard, and it will be better than any statewide table.

Common questions

Can I grow Asian greens through a Georgia winter?

In much of the state, yes, with some protection. The coldest month’s mean daily minimum in the Atlanta normals is 35.6°F, so most nights stay near freezing but not far below it. Hardy types such as mizuna and tatsoi handle that well. Keep row cover ready for colder snaps, and expect more risk in north Georgia and the mountains, which freeze weeks earlier.

Is spring or fall better for sowing?

Fall is the better window for most gardeners. The first-freeze band does not open until November 13, which leaves a long stretch of cool, mild weather. Spring works too, but the season is short before heat triggers bolting, so sow early and expect a quick crop.

What is the latest I can sow in fall?

This page does not have a single cutoff date for Georgia, and it would be wrong to invent one. Count back from the first-freeze band (November 13 to December 1 at the Atlanta station) and choose fast leaf types if you are late. Heading types such as napa cabbage need more time. Your county extension office can give you a firmer date.

Do the Atlanta dates apply to my county?

Only if you live close to Atlanta, and even then with caution. The station is an urban airport heat island, so rural gardens often freeze sooner, North Georgia and the mountains freeze several weeks earlier in fall, and the coastal plain runs milder. Treat the dates as a reference point and adjust from there.