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Vegetable Planting Schedule for USDA Zone 8b

Gardening in Tucson, Phoenix, Arizona and Southern California

Vegetable Planting Schedule for USDA Zone 8b

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Raddichio

Homestead Tomato


Vegetable
Germination
Soil Temp °F

Planting Date

Cool-Season Vegetables
Artichoke70-80Sep 1-30
Asparagus60-85Sep 1-15
Beet50-85Sep 1 - Oct 15
Bok Choy45-90Aug 16 - Oct 15
Broccoli65-75Aug 16 - Sep 30
Brussels Sprouts68-75Aug 16 - Sep 15
Cabbages45-90Sep 1-30
Carrot45-85Aug 16 - Sep 30
Cauliflower45-85Aug 16 - Sep 30
Garlic45-70Oct 1-30
Kale70-80Aug 15 - Nov 30 / Feb 1-28
Leek50-75Sep 15 - Nov 30 / Feb 1 - Mar 31
Head Lettuce** / Arugula40-75Sep 16 - Oct 30 / Feb 1 - Mar 31
Leaf Lettuce**40-75Feb 15 - Mar 15
Mustard Greens55-65Sep 15 - Oct 31 / Feb 1-15
Onions, Bulb 40-75Sep 1 - Oct 31
Onions, Scallions40-75Sep 1 - Oct 31 / Apr 1-15
Pea40-90Sep 1-15
Potato60-70Aug 16 - Sep 15
Radish50-65Sep 1 - Oct 31 / Feb 1-28
Spinach**32-60Sep 15 - Oct 15 / Jan 15 - Feb 28
Strawberry30-45Sep 7-Oct 7
Swiss Chard†70-75Sep 1 - Oct 15 / Mar 1-15

Warm-Season Vegetables
Amaranth60-75Apr 1 - May 15
Beans, Bush70-80Apr 16-30
Beans, Pole (& Green)70-80May 1-31
Black-eyed Pea65-95Apr 1 - June 30
Corn75-85Apr 1 - May 15
Cucumber70-85May 1-31
Eggplant75-85May 1-31
Melons80-85May 1 - Jun 30
Okra80-85May 1 - Jun 30
Pepper/Chilies75-85May 1-15
Squash, Summer75-85May 1-15
Squash, Winter75-80May 1 - Jun 30
Sunflower/Sunchoke65-90Apr 1-30
Sweet Potato75-80Jun 1-15
Tomato/Tomatillo75-95Apr 16-30
  • Protect from occasional frost between November 15 and May 1.
  • Temperatures are listed for optimal germination rates and transplanting. Seeds may germinate outside range but can be subject to rotting in cool temperatures unless chemically treated.
** Use heat tolerant, bolt resistant varieties for winter and spring planting. These will last even into summer.
A source for heat tolerant and bolt resistant seeds: Native Seed Search

† Naturally bolt-resistant.

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