What to Plant in September in Georgia | Fall Garden Guide

Posted by Jennifer Dixon on 7th Sep 2026

September can be a funny month in a Georgia garden.

The calendar says fall, but sometimes the weather certainly doesn't feel like it.

You can walk outside in September and still find yourself sweating before you've finished watering the garden. The tomatoes may still be producing, the peppers may still be loaded, and the summer weeds certainly haven't received the message that their season is supposed to be ending.

But underneath all that summer heat, the garden is changing.

September is one of those months when you can start shifting your attention toward cool-season vegetables.

If you've been waiting for the garden to cool completely before planting, don't wait too long.

Many of the vegetables we enjoy throughout fall and winter need to be planted while summer is still hanging around.

That's one of the strange things about gardening in Georgia.

Sometimes you have to plant fall while it still feels like summer.

September Is a Transition Month

I think September is best thought of as a bridge between two gardens.

The summer garden isn't necessarily finished.

But the fall garden is beginning.

You may still be harvesting tomatoes, peppers, okra, beans, cucumbers, and squash while preparing another bed for lettuce, carrots, radishes, greens, or cabbage.

That's part of what makes gardening in Georgia so rewarding.

We don't always have to choose between summer and fall.

With a little planning, we can move from one season into the next.

University of Georgia Extension recommends continuing to sow and transplant many fall crops during September, including beets, broccoli, cabbage, carrots, collards, kale, lettuce, mustard, onions, radishes, spinach, and turnips.

The important thing is not to treat September 1 as a magical planting date.

Your location matters.

Your weather matters.

And the particular variety you're growing matters.

What Can You Plant in September in Georgia?

There are quite a few vegetables that can find a home in the September garden.

Some of the best choices include:

• Lettuce

• Spinach

• Radishes

• Carrots

• Beets

• Mustard greens

• Turnips

• Collards

• Kale

• Cabbage

• Broccoli

• Cauliflower

• Onions

Not all of these should be planted exactly the same way.

Some are better direct-sown.

Some are easier as transplants.

And some have a much shorter planting window than others.

That's why September gardening is less about planting everything at once and more about knowing what each crop needs.

Lettuce

If there's one vegetable I especially love seeing in a fall garden, it's lettuce.

Lettuce prefers cooler weather, which makes fall a much more comfortable growing season than the heat of a Georgia summer.

September is a good time to begin working lettuce into your garden as temperatures start to moderate.

Lettuce can be direct-sown or transplanted, depending on the variety and your preference.

Keep the seed bed consistently moist while the seeds are germinating.

This is especially important if September happens to bring us another stretch of hot, dry weather.

Once established, lettuce can become one of those crops you harvest a little at a time instead of waiting for one huge harvest.

Pick the outer leaves and let the plant continue growing.

There's something wonderful about walking into the garden and picking just enough lettuce for supper.

Spinach

Spinach is another excellent cool-season crop.

It doesn't particularly enjoy the heat, which is exactly why fall can be such a welcome season for it.

UGA Extension lists spinach among the crops that can be planted during the late summer and early fall window, with September still being a useful planting period depending on location and conditions.

If your soil is loose and fertile and you can keep the seed bed evenly moist, spinach can get established as temperatures begin to come down.

Don't be discouraged if September still feels too warm.

Sometimes the weather simply needs a little time to catch up with the calendar.

Radishes

If you're looking for something quick, radishes are hard to beat.

They're one of those vegetables that can make a gardener feel like something is actually happening.

You plant the seed.

You wait.

Then suddenly there are little leaves coming up everywhere.

Radishes are well suited to fall gardening, and UGA lists them among the crops that can be planted through September and into October in Georgia.

Plant them in loose soil, keep the seed bed moist while they germinate, and give the roots room to develop.

Because they mature relatively quickly, radishes are also useful for filling small spaces between slower-growing crops.

Carrots

September is also a good time to think about carrots.

Carrots are one of those vegetables where soil preparation really matters.

If you've ever pulled a carrot that looked more like a twisted little root than the beautiful carrot you imagined, the soil may have had something to do with it.

Carrots prefer loose soil without large rocks, hard clumps, or compacted areas that interfere with the developing root.

UGA's fall gardening recommendations list carrots among the crops that can be seeded in Georgia through approximately mid-September, although the exact window depends on your location.

Keep the seed bed consistently moist while the seeds are getting established.

Carrot seeds are small, and letting the surface dry out repeatedly can make germination much more difficult.

Beets

Beets are another wonderful fall crop.

You can harvest the roots, but don't forget about the greens.

Fresh beet greens are one of those little garden treasures that often get overlooked.

Beets are best started from seed rather than transplanted, since the developing root doesn't appreciate being disturbed.

Give them loose soil and consistent moisture.

If the soil has become hard after a long summer, take the time to prepare it before planting.

A little effort with the soil now can make a big difference later.

Mustard Greens

If you enjoy traditional Southern greens, September is an exciting month.

Mustard greens are a classic cool-season crop and can grow quickly once conditions become favorable.

They're also one of the crops that can make a fall garden feel like a Southern garden.

That first cool morning when you can walk outside and see healthy greens growing instead of fighting through another patch of summer heat is pretty special.

Mustard greens can be direct-sown, and UGA includes them among the fall crops suitable for Georgia's September planting window.

Turnips

Turnips are another Southern garden favorite.

And one of the things I love about turnips is that you aren't limited to just the root.

Depending on the variety, the greens can provide another harvest from the same plant.

Turnips are generally direct-sown, and they don't need the long growing period required by some larger fall vegetables.

They're also a good crop for gardeners who want to make productive use of smaller spaces.

Plant them in prepared soil, keep them watered while they establish, and let the cooler weather do some of the work.

Collards

If you live in the South, you probably don't need much convincing to grow collards.

They're one of those vegetables that simply belongs in a fall garden.

Collards can be direct-sown or transplanted, depending on how you prefer to grow them.

Young plants still need attention during September, especially if temperatures remain high.

Keep them watered and watch for insects.

Once established, they'll appreciate the cooler weather that eventually arrives.

And there's something mighty satisfying about harvesting a basket of collards from your own garden.

Kale

Kale is another good choice for the fall garden.

It's a cool-season vegetable that can provide a long harvest when planted at the right time.

UGA's fall gardening recommendations include kale among the crops that can be established during the late summer and early fall period.

Kale can be started from seed or transplanted.

If you're planting during a warm September, give young seedlings a little extra attention until they become established.

Once the weather cools, you'll usually find the plants much happier.

Cabbage

Cabbage takes a little more planning than a quick crop like radishes.

It's a longer-season vegetable, so timing matters.

Cabbage is often easier to grow from a healthy transplant than from seed sown directly into the garden during the heat of late summer.

UGA's fall planting chart lists cabbage from mid-August through approximately October 1, depending on the location and conditions.

If you already have healthy cabbage transplants, September can be an excellent time to get them established.

Give them good soil, adequate spacing, and consistent moisture.

And keep an eye out for cabbage worms and other insects.

The cooler weather may be coming, but the bugs haven't necessarily packed their bags yet.

Broccoli

Broccoli is another fall crop worth planting in September.

Like cabbage, broccoli can be easier to establish from a transplant.

The challenge is getting the plants through the remaining summer heat.

Once they are established and temperatures begin to moderate, they can really take off.

UGA lists broccoli among the major fall vegetables for Georgia, with fall planting windows extending into September and, depending on location, later.

If you have healthy transplants ready to go, don't be afraid to get them into the garden.

Just make sure they receive enough water while their roots are getting established.

Cauliflower

Cauliflower can be a little more particular than some of the other vegetables on this list.

But if you enjoy growing it, September is an important month to have it on your radar.

UGA's fall planting chart gives cauliflower a September-to-October planting window, primarily using transplants.

Like broccoli and cabbage, young plants need to be established before the weather becomes too cold.

If you're growing cauliflower for the first time, pay attention to the maturity information for your particular variety.

The garden has a way of reminding us that not every vegetable follows the same schedule.

Onions

September is also a good month to begin thinking about onions.

Depending on the type and your planting method, onions may be started from seed, sets, or transplants.

UGA includes onions among the crops suitable for the September-to-October fall planting period.

Onions are one of those crops where variety selection and timing matter quite a bit, so pay attention to the specific variety you're growing.

Don't assume every onion behaves exactly the same way.

That's one reason I like keeping garden notes.

What works beautifully one year may teach you something that helps you choose better varieties the next.

What About Herbs?

Don't forget that your September garden doesn't have to be all vegetables.

Cool-season herbs can also have a place in the fall garden.

UGA specifically lists cilantro, chives, dill, and parsley among herbs suited to cool-weather growing.

This is a wonderful time to add a few herbs around the vegetable garden.

Cilantro in particular can be a nice fall crop because it prefers cooler conditions than the middle of a Georgia summer.

And if you've never let cilantro go to seed, you might want to give it a try.

Sometimes the garden gives you more than you expected if you simply let a plant finish its natural cycle.

What Should You Direct Sow in September?

One of the easiest ways to simplify your fall garden is to know which crops can go directly into the soil.

Some good candidates include:

• Carrots

• Beets

• Radishes

• Turnips

• Mustard greens

• Spinach

• Lettuce

• Some varieties of collards and kale

UGA Extension specifically notes that crops such as beets, carrots, lettuce, mustard, spinach, radishes, turnips, kale, collards, and onions can be direct-sown during September and October when conditions become milder.

The exact timing still matters.

If the weather is brutally hot, you may need to wait for a more favorable stretch rather than forcing seeds into soil that is too hot and dry.

What Is Better Started as a Transplant?

Some vegetables are easier to get established from transplants.

Broccoli, cabbage, cauliflower, and Brussels sprouts are common examples.

UGA Extension specifically recommends transplants for several of these longer-season fall crops.

There is nothing wrong with starting these yourself from seed, of course.

But if you're new to fall gardening, purchasing healthy transplants can make the process considerably easier.

Just look for plants that are sturdy, healthy, and free from obvious insect or disease problems.

A good transplant should look ready to grow—not like it has already spent its entire life struggling in a tiny container.

September Is Still Hot in Georgia

This may be the most important part of the whole article.

Don't assume September means cool weather.

Sometimes September in Georgia is still very hot.

That means your new fall garden may need just as much attention as your summer garden during those first few weeks.

Young seedlings can dry out quickly.

New transplants can wilt.

Seeds can fail to germinate if the seed bed dries out repeatedly.

And weeds certainly aren't going anywhere just because the calendar says September.

Keep checking your garden.

Don't just plant everything and walk away.

Your plants are trying to make the transition into a new season, and a little help during that transition can make all the difference.

Keep the Seed Bed Moist

Small seeds need consistent moisture while they are germinating.

That doesn't mean soaking the garden constantly.

It means avoiding the cycle of completely drying out and then flooding the soil.

UGA recommends maintaining constant moisture while fall seeds are germinating and paying particular attention to new transplants to prevent drought stress.

A light layer of mulch can also help conserve moisture and suppress weeds once your seeds are established enough for mulching to be appropriate.

Just don't bury tiny seedlings under a heavy layer of material.

They're little plants.

They still need room to breathe and reach the light.

Take Care of the Soil Before You Plant

A summer garden can take a lot out of the soil.

By September, you've probably grown tomatoes, peppers, squash, beans, cucumbers, or other heavy-producing crops in those beds for months.

Before planting another crop, take a good look at your soil.

Remove spent plants.

Pull weeds.

Break up compacted areas gently.

Add finished compost or other organic matter when appropriate.

And if you haven't had your soil tested recently, fall is a good time to consider it.

UGA Extension recommends soil testing to help determine lime and fertilizer needs rather than simply guessing what the soil requires.

Healthy soil is one of the best gifts you can give a fall garden.

Don't Forget About Mulch

Mulch can be especially useful during the transition from summer to fall.

A good organic mulch can help conserve moisture, reduce weeds, and protect the soil surface.

Leaves, straw, compost, and pine straw are all commonly used organic mulching materials.

UGA Extension notes that mulch can help conserve moisture and control weeds in the vegetable garden.

Just remember that young seedlings still need light.

Don't pile mulch directly over tiny plants.

Give them room to grow.

Plant for Your Location

This is something I say often because it's easy to forget.

Georgia is not one single gardening climate.

What works in the North Georgia mountains may not happen at exactly the same time along the coast.

Even UGA's planting calendars note that recommended dates can shift depending on where you are in the state.

So use planting calendars as guides.

Then look outside.

Pay attention to your soil.

Pay attention to the forecast.

Pay attention to the variety you're growing.

And most importantly, pay attention to your own garden.

After a few seasons, you'll begin to recognize patterns that no calendar can completely explain.

What If You Still Have a Summer Garden?

That's perfectly fine.

You don't have to rip everything out on September 1.

If your tomato plants are still producing, let them produce.

If your peppers are loaded, enjoy them.

If your okra is still giving you pods, keep picking.

Instead, begin preparing the spaces as they become available.

When one crop finishes, clear that space and put the next crop there.

This is one of the simplest ways to make a small garden more productive.

You're not asking one bed to grow everything at once.

You're letting the garden change with the seasons.

Think About Succession Planting

September is also a good time to think about succession planting.

Instead of planting an entire row of radishes at once, you might plant a little now and another small planting later.

You can do the same with lettuce, mustard greens, spinach, and other quick crops.

This can spread your harvest out instead of giving you everything at one time.

A garden doesn't have to be planted once.

Sometimes the most productive garden is the one that's planted a little at a time.

Don't Forget Your First Frost Date

Fall gardening is really a race against the calendar—but not necessarily the September calendar.

It's the first frost that matters.

Different parts of Georgia experience their first frost at different times, and even those dates are averages rather than guarantees.

That's why you should know your approximate first frost date and compare it with the days to maturity for the varieties you're growing.

Give yourself some breathing room.

If a crop needs 60 days to mature, don't plant it 60 days before your expected frost and assume everything will work perfectly.

Weather can slow growth.

Transplants can need time to recover.

Seeds don't always germinate immediately.

Gardening rarely happens exactly according to the number printed on the seed packet.

From Jen's Garden

There's something I really love about September.

The garden hasn't completely let go of summer yet.

But you can feel that another season is coming.

The tomatoes are still hanging on.

The peppers are still producing.

The summer flowers are beginning to look a little tired.

And somewhere nearby, little fall seedlings are getting started.

It's almost like the garden is quietly turning a page.

I think that's why I enjoy fall gardening so much.

It reminds me that a garden is never really finished.

There's always something else to plant.

Something else to harvest.

Something else to learn.

So if you walk outside in September and think your garden looks tired, don't give up on it.

Clear out what has finished.

Prepare the soil.

Plant something new.

Start a few seeds.

And give the garden another chance.

Because some of the best gardening of the year may still be ahead of you.

September Vegetable Planting Checklist

• Lettuce

• Spinach

• Radishes

• Carrots

• Beets

• Mustard greens

• Turnips

• Collards

• Kale

• Cabbage

• Broccoli

• Cauliflower

• Onions

• Cilantro

• Chives

• Dill

• Parsley

Remember that planting windows vary throughout Georgia and according to the specific variety you're growing.

Key Takeaways

• September is an important transition month for Georgia vegetable gardens.

• Many cool-season vegetables can be planted or transplanted during September.

• Lettuce, spinach, radishes, carrots, beets, mustard greens, turnips, collards, kale, cabbage, broccoli, cauliflower, and onions are all worth considering.

• Some crops are better direct-sown, while others are easier to establish from transplants.

• Keep newly planted seeds and transplants consistently watered while they establish.

• Prepare tired summer soil before planting your next crop.

• Mulch can help conserve moisture and suppress weeds.

• Don't assume September automatically means cool weather in Georgia.

• Use your local first frost date and the days-to-maturity information for your particular variety.

• Planting calendars are guides. Your garden, weather, and location still matter.

• Don't be afraid to keep harvesting summer crops while beginning your fall garden.

Final Thoughts

September is not the end of the garden.

It's the beginning of another chapter.

While summer crops are still producing, you can quietly begin replacing them with vegetables that will carry your garden into fall and winter.

And before long, those hot afternoons will give way to cool mornings, the garden will slow down, and you'll find yourself harvesting fresh greens and root vegetables when you thought the growing season was supposed to be over.

That's one of the great things about gardening in Georgia.

There's almost always something else to grow.

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