Choosing Vegetables to Grow in Southern California’s Cool Season

Have a successful cool season garden in zones 9 and 10 with our help. Learn what to grow for a bountiful garden you can enjoy all winter.

Grow what you like to eat

Plant what you like to eat! Most of us don’t have unlimited garden space, so we have to make choices. Grow what you know your household/family will actually eat. Think about the vegetables you usually purchase or what you like in your CSA box. If you want to try a vegetable new to you, just plant a small ‘‘test’‘ amount.

Grow the cool season crops

Your success with winter vegetables depends on selecting the ones that do best in the cooler weather and shorter days. For USDA Zones 9 and 10 that includes, broccoli, cabbage, cauliflower, and other members of the cabbage family; root crops such as beets, carrots, radishes, onions, garlic, potatoes; leafy vegetables such as lettuce, spinach, kale, arugula, chard, Asian greens; and peas, celery, artichokes, and asparagus.

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Check the Vegetable Garden Planting Guide for San Diego County which is also useful for most coastal and inland Southern California gardeners. This guide from the University of California Cooperative Extension lists the cool season and warm season vegetable crops. A separate chart gives planting dates for coastal and inland regions for seeds and transplants.

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Grow what’s easy if you’re a new vegetable gardener

Some of the easiest crops to grow are the winter greens—lettuce, spinach, chard, arugula, kale, and mustard greens. Carrots, broccoli, radishes, onion sets are also easy and rewarding. Direct seed when you can, grow your own seeds to transplant; but if your garden is small purchasing transplants of broccoli, cabbage, cauliflower or lettuce may be the best option, especially if this is your first garden.

Time your plantings

Fall weather in SoCal can be quite variable. There are Santa Anas to contend with and the days can be brutally hot. Winter rains may not arrive until January or be insufficient, and Santa Ana conditions can show up mid-winter. Use the Vegetable Garden Planting Guide for San Diego County as a general guide for your planting of seeds and transplants.

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With experience, you’ll learn what works best in your garden. In my very coastal garden, carrots and beets are seeded in the last week of September when the soil is still warm for better germination. That could change though if there’s a heatwave, so be prepared to roll with what comes. Similarly, transplants of broccoli, cabbage, and cauliflower settle in better here during cooler days of mid-to late-October. Keep records as the recollection fades from year to year.

Buy your seeds now (July to November)

For those vegetables that you’ll be direct seeding or growing as transplants, buy your seeds as soon as possible. When I ordered my seeds in August, many varieties were already out of stock.

Oh, and don’t forget the edible flowers!

Order Fall Seeds!


This is an adapted article from Susan Martin of Point Loma California. Susan is an avid gardener with a wonderful blog packed full of great information. Read more from Susan in her blog Ediblegardens52.

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