Fall Vegetable Planting Calendar by USDA Zone

One of the most common questions I hear from gardeners is, “When should I plant my fall vegetables?”

The answer depends on where you live.

A gardener in Minnesota may begin planting fall broccoli in July, while a gardener in Northern California may wait until September. Both are planting at exactly the right time because they’re working with different growing seasons.

Over the years, I’ve gardened in Iowa, Massachusetts, Florida, and California, and one lesson has remained constant: successful fall gardening isn’t about following the calendar—it’s about understanding your local climate. USDA Hardiness Zones provide a helpful starting point, but the most reliable planting schedule combines your zone with average first frost dates, soil temperatures, and local weather patterns.

Use this guide to determine when to begin planting your fall vegetable garden.

Table of Contents

Why USDA Zones Are Only Part of the Story

USDA Hardiness Zones were developed to show average winter minimum temperatures. They’re extremely useful when selecting perennial plants, but annual vegetables depend on much more than winter lows.

For fall gardening, you also need to consider:

Your average first frost date
Soil temperature
Summer heat
Length of your growing season
Average daytime and nighttime temperatures

I always encourage gardeners to use their USDA Zone as a starting point—not the final answer.

General Fall Planting Calendar by USDA Zone

The following schedule provides a reliable starting point for most cool-season vegetables.

Zones 3–4 (Short Growing Seasons)

Typical first frost: Early to mid-September

Begin planting:

Late June through July

Recommended crops:

Spinach
Lettuce
Radishes
Turnips
Kale
Asian greens
Early carrots

Choose fast-maturing varieties whenever possible. Transplants often outperform direct-seeded crops because they save valuable growing time.

Zones 5–6

Typical first frost: Mid-September through early October

Begin planting:

Mid-July through August

Recommended crops:

Broccoli
Cauliflower
Cabbage
Kale
Carrots
Beets
Spinach
Lettuce
Peas (where seasons allow)

This is one of the best climates for traditional fall vegetable gardening.

Zones 7–8

Typical first frost: October through November

Begin planting:

August through early September

Recommended crops:

All leafy greens
Brassicas
Root vegetables
Peas
Garlic
Onions
Asian greens

Many gardeners enjoy harvests from October through December and often beyond with simple frost protection.

Zones 9–10

Typical first frost: Late November through January—or frost may be rare

Begin planting:

Late August through October

Recommended crops:

Broccoli
Cabbage
Lettuce
Spinach
Carrots
Beets
Garlic
Onions
Fava beans
Peas

In my Northern California garden, fall is often the beginning of a second major vegetable season. Cooler nights allow cool-season vegetables to thrive while many warm-season crops continue producing.

Zone 11 and Tropical Climates

Many warm climates experience their primary vegetable-growing season during autumn and winter.

Planting often begins:

September through November

Common crops include:

Lettuce
Spinach
Kale
Broccoli
Cabbage
Carrots
Beets
Asian greens
Garlic

Cool-season vegetables frequently produce throughout winter.

Let Soil Temperature Guide You

While planting dates vary from region to region, soil temperature provides one of the most dependable signals. I write weekly about these signals in my substack newsletter, The Soil Temperature Garden Report.

These general guidelines work well for most fall crops.

Soil Temperature	Recommended Planting
Above 80°F	Wait if possible, or cool the soil before sowing lettuce and spinach.
70–80°F	Plant broccoli, cabbage, cauliflower, carrots, beets, and kale.
60–70°F	Ideal for nearly all cool-season vegetables.
50–60°F	Excellent for late-season sowings and overwintering crops.

A simple soil thermometer provides far more useful information than the calendar alone.

Count Backward from Your First Frost

Once you know your average first frost date, calculating planting dates becomes straightforward.

Use this formula:

Average first frost date

minus

Days to maturity

minus

7 to 14 days for slower autumn growth

equals

Your planting date

For example:

If your average first frost is October 15 and your broccoli requires 75 days to mature, count back approximately 85 days. Your planting date falls near late July.

This simple method works for almost every fall vegetable.

Adjust for Your Local Microclimate

Every garden has unique growing conditions.

You may need to plant slightly earlier or later depending on:

Elevation
Coastal influence
Urban heat islands
Wind exposure
South-facing slopes
Cold air pockets

For example, my Sonoma Valley garden often remains several degrees warmer than nearby hilltops during autumn nights, allowing a slightly longer growing season.

Keeping records each year helps refine your personal planting calendar.

Use Succession Planting

Don’t plant every vegetable on the same day.

Instead, stagger sowings.

For example:

Lettuce every two weeks
Spinach every two to three weeks
Radishes every ten to fourteen days
Carrots every two to three weeks
Asian greens every two weeks

Succession planting extends harvests and reduces the chance that weather will affect your entire crop at once.

Watch Nature’s Calendar

Nature often provides planting clues before the weather forecast does.

Look for signs such as:

Cooler nights
Morning dew
Tomatoes slowing production
Sunflowers fading
Goldenrods and asters blooming
Shortening daylight

These seasonal changes often signal that conditions are becoming favorable for cool-season vegetables.

Keep Records Every Year

No printed calendar can predict your exact gardening conditions.

One of the most valuable habits you can develop is maintaining a simple garden journal.

Record:

Planting dates
Soil temperatures
First frost
First harvest
Successful varieties
Weather conditions

After only a few seasons, you’ll have a planting calendar tailored specifically to your garden.

Your Garden Is the Best Calendar

USDA Zones provide an excellent framework, but successful fall gardening depends on much more than a number on a map.

The most productive gardeners combine:

USDA Zone
Average first frost date
Soil temperature
Historical weather patterns
Local observations
Nature’s seasonal signals

Using all of these guides together allows you to plant with confidence and make the most of every autumn growing season.

Over many years of gardening, I’ve learned that the garden itself is the most reliable teacher. Watch the weather, measure your soil temperature, observe seasonal changes, and keep good records. Before long, you’ll know exactly when to plant your fall vegetables—no matter where you garden.

Fall Planting Calendar Checklist

Before planting your fall garden:

Identify your USDA Hardiness Zone.
Find your average first frost date.
Measure soil temperature.
Count backward from frost using days to maturity.
Select varieties suited to your growing season.
Adjust for your local microclimate.
Plan succession sowings.
Watch for nature’s seasonal signals.
Record your planting dates for future seasons.

When you combine these practices, you’ll create a planting calendar that’s more accurate than any generic schedule—and one that’s perfectly matched to your own garden.

This article is part of my fall gardening series—see The Complete Guide to Fall Vegetable Gardening: Planning, Planting, Growing, and Harvesting for the full seasonal framework.

Further Reading