Zone 9 Planting Calendar: What to Plant and When

Zone 9 is where the gardening year turns upside down. Winter lows here bottom out around 20°F to 30°F, the last spring frost lands in late February, and the first fall frost usually holds off until early December, which leaves roughly 280 frost-free days. The season that limits you is not winter. It is July and August, when lettuce bolts within days, spinach never sizes up, and broccoli sulks in the heat. So the cool months are your prime growing time and summer is the stretch you plan around. This Zone 9 planting calendar is built that way, with greens, brassicas, and roots running from fall through spring and the heat lovers holding the middle of the year.

Zone 9 planting calendar

Use this month-by-month schedule as your Zone 9 planting calendar. The pattern to notice: cool crops such as lettuce, broccoli, peas, and root vegetables cluster in fall through early spring, while warm crops such as tomatoes, peppers, okra, and southern peas take the late spring and summer slots. Peak summer is mostly for maintaining heat-tolerant crops, not starting tender greens.

Zone 9 planting schedule at a glance

The Zone 9 planting schedule runs on two overlapping seasons rather than one. You start seeds indoors for tomatoes, peppers, and eggplant in January, move them into the ground in March once the late February frost has passed, and take the main summer harvest from May into July before the heat shuts the garden down. From late August through October you sow the fall and winter garden, and greens, brassicas, and root crops carry you through a mild winter into the next spring.

Month	Start indoors	Transplant / plant out	Direct sow outdoors	Harvest
January	Tomatoes, peppers, eggplant	Onions, broccoli, cabbage, lettuce transplants	Peas, carrots, radish, beets, spinach	Broccoli, kale, lettuce, carrots, citrus
February	Tomatoes, peppers, eggplant, basil	Potatoes, cabbage, lettuce, onions	Carrots, beets, radish, peas, chard, lettuce	Lettuce, spinach, broccoli, peas, radish
March	Okra, melons, late basil	Tomatoes, peppers, eggplant, cucumbers	Beans, corn, squash, cucumbers, melons	Lettuce, peas, carrots, beets, broccoli
April	Sweet potato slips	Peppers, eggplant, sweet potatoes, melons	Southern peas, okra, beans, corn, squash	Spring lettuce, peas, carrots, cabbage
May	·	Sweet potatoes, okra transplants	Southern peas, okra, heat-tolerant beans, melons	Squash, cucumbers, early tomatoes, beans
June	·	·	Southern peas, okra, sweet potato slips, pumpkins	Tomatoes, peppers, squash, cucumbers, melons
July	Tomatoes, peppers for fall	·	Southern peas, okra, heat-tolerant beans	Okra, southern peas, peppers, melons, eggplant
August	Broccoli, cabbage, cauliflower, lettuce for fall	Tomatoes, peppers for a fall crop	Beans, cucumbers, squash for fall	Okra, southern peas, peppers, eggplant
September	Lettuce, kale, chard for winter	Broccoli, cabbage, cauliflower, lettuce	Carrots, beets, radish, spinach, peas, turnips	Fall tomatoes, peppers, beans, cucumbers
October	·	Broccoli, cabbage, kale, lettuce, onions, garlic	Carrots, beets, radish, spinach, peas, lettuce, chard	Fall beans, greens, radish, late peppers
November	·	Lettuce, cabbage, onion, garlic, strawberries	Carrots, radish, spinach, peas, fava beans	Broccoli, lettuce, carrots, radish, greens
December	Tomatoes, peppers (indoors, warm)	Onions, cabbage, lettuce	Peas, radish, spinach, carrots	Broccoli, cauliflower, kale, lettuce, carrots

The golden rule for Zone 9 is to think of your winter as another gardener's spring. Cool crops such as lettuce, spinach, broccoli, peas, and root vegetables grow best from fall through early spring, while okra, southern peas, sweet potatoes, and peppers carry the hot summer. For exact sowing windows tuned to your address, cross-check this schedule against your local frost dates using the ZIP code planting calendar.

The best crops for Zone 9

The best Zone 9 vegetables fall into two camps: heat lovers that shrug off a scorching summer, and cool crops that make the most of the long, mild winter. Plan your garden around both.

Heat-tolerant summer crops

When summer turns brutal, lean on crops that thrive in it: okra, southern peas, sweet potatoes, peppers, eggplant, and heat-set tomatoes. Squash, cucumbers, and melons produce well in late spring and early summer before the worst heat.

Cool crops for fall, winter, and spring

This is where Zone 9 shines. Grow lettuce, spinach, kale, broccoli, cabbage, cauliflower, peas, radish, and carrots from fall through early spring, when the weather is mild and these crops are at their sweetest. Avoid planting them for summer harvest, when heat makes them bolt and turn bitter.

Beans and quick crops

Snap and southern beans handle Zone 9 warmth well, and fast radishes and greens fill the cool-season gaps between longer crops.

Herbs and flowers

Mediterranean herbs like rosemary, oregano, and thyme love the Zone 9 sun and often grow year-round. Round out the garden with culinary herbs. Browse the full range of vegetable seeds to build your Zone 9 planting plan.

When are the frost dates in Zone 9?

Zone 9 frost dates bracket a very long season. The average last spring frost falls around late February, so you can plant warm crops earlier than most of the country. The average first fall frost holds off until around early December, giving you 280 or more frost-free days. In much of Zone 9 frost is light and brief when it comes at all.

These are zone-wide averages, and your local dates depend on your exact location, elevation, and coastal influence, so they can shift by a couple of weeks. In Zone 9 the bigger planning factor is often summer heat rather than frost. For your specific last and first frost dates, enter your ZIP code in our interactive planting calendar, then use them to fine-tune the calendar above.

Zone 9a vs 9b: last and first frost dates

Zone 9 splits into 9a and 9b, and the two halves sit about 5°F apart in average winter low. That sounds small, but it moves the calendar in a way you can feel. Zone 9b is the milder half: its last frost comes about two weeks earlier in spring, its first frost arrives a week or two later in fall, and it ends up with a noticeably longer season. To be honest about it, 9b never records a real frost in many years, so plenty of gardeners there treat the date as a formality and keep tender crops going straight through winter under a sheet of row cover. Zone 9a has a shorter but still generous window, and a genuine winter cold snap you should plan for.

Treat the numbers below as zone-wide averages. Elevation, coastal air, and a low spot in your own yard can move them by two or three weeks in either direction, so a neighbor a mile away may plant on a different date than you do. Once you know your own last frost, the rest follows. In Zone 9 you start seeds indoors for tomatoes and peppers about 6 to 8 weeks ahead of it, which for most of the zone works out to somewhere between late December and mid January.

Subzone	Average last spring frost	Average first fall frost	Growing season
Zone 9a	Late February to early March (about Feb 20 to March 5)	Late November to early December (about Nov 25 to Dec 10)	About 270 to 290 days
Zone 9b	Early to mid February (about Feb 5 to 20)	Early to mid December (about Dec 5 to 20)	About 290 to 315 days (9b is close to frost-free in many years)

What does USDA Zone 9 mean?

USDA Plant Hardiness Zone 9 describes the average annual coldest winter temperature in your area, which for Zone 9 runs between 20°F and 30°F. The USDA splits it into Zone 9a (20 to 25°F) and Zone 9b (25 to 30°F). This number tells you how much winter cold your perennials, shrubs, citrus, and trees can survive, which is why it matters when you buy plants rated for a particular zone.

Remember that your hardiness zone is about winter lows, not frost dates or summer heat. It tells you what will survive the winter, but not exactly when your last spring or first fall frost lands, and it says nothing about how hot your summers get. For planting timing, pair your zone with your local frost dates from the ZIP tool. If you are starting a fresh bed, it also helps to start seeds indoors on a schedule that matches your subzone rather than the zone average.

Find your exact zone

Zone 9 sits near the warm end of the hardiness scale. If your winters run a bit colder with a clearer cold season, you may be in Zone 8. If your area is essentially frost-free year-round, check the Zone 10 planting calendar. Matching your true zone to your local frost dates is the surest way to plant at exactly the right time.