Arizona Low Desert planting calendar
Arizona's Sonoran Desert valleys around Phoenix, Tucson and Yuma. Summers are extremely hot, with highs above 105°F for weeks. Winters are mild and sunny, with only a few light frosts in most years.
What to plant each month in Arizona Low Desert
There are two planting seasons. Cool-season crops go in from late August through February and grow through the mild winter. Warm-season crops go in from February to April and need to mature before the June heat. Midsummer heat, intense sun and low humidity stall most crops and stop tomatoes and peppers from setting fruit, so heat-tolerant crops such as okra, Armenian cucumber, melons and sweet potatoes carry the garden through summer. The July-September monsoon brings humidity and storms, and a second short warm-season window opens in July-August for tomatoes, squash, beans and corn. The months below follow the planting calendar for Arizona Low Desert from the Cooperative Extension sources listed.
January
Plant: asparagus, beets, black-eyed susans, blackberries, broccoli, cabbages, carrots, cauliflower, collard greens, dill, green onions, leeks, lettuce, nasturtiums, onions, oregano, parsley, peas, petunias, poppies, potatoes, radishes, raspberries, roses, snapdragons, spinach, strawberries, sweet peas, swiss chard, turnips
February
Plant: asparagus, basil, beets, black-eyed susans, cantaloupes, carrots, collard greens, cucumbers, dill, figs, green onions, hollyhocks, lavenders, lettuce, marigolds, onions, oregano, peas, peppers, petunias, poppies, potatoes, radishes, ranunculus, roses, snapdragons, spinach, sunflowers, sweet corn, sweet peas, tomatoes, turnips, watermelons, zucchini
March
Plant: basil, beets, black-eyed susans, cantaloupes, carrots, cosmos, cucumbers, dahlias, eggplants, figs, green beans, green onions, hollyhocks, marigolds, okra, peanuts, peppers, petunias, potatoes, pumpkins, radishes, ranunculus, rosemary, roses, sunflowers, sweet corn, sweet potatoes, tomatoes, watermelons, winter squash, zinnias, zucchini
April
Plant: basil, cantaloupes, carrots, cosmos, cucumbers, dahlias, green beans, green onions, marigolds, okra, peanuts, radishes, sunflowers, sweet corn, sweet potatoes, zinnias, zucchini
May
Plant: basil, cantaloupes, cosmos, marigolds, okra, sunflowers, sweet potatoes, zinnias
June
Plant: cantaloupes, cosmos, marigolds, sunflowers, sweet potatoes, zinnias
July
Plant: cantaloupes, green beans, peppers, pumpkins, sunflowers, sweet corn, tomatoes, winter squash
August
Plant: broccoli, brussels sprouts, cabbages, carrots, cauliflower, celery, collard greens, cucumbers, green beans, green onions, kale, leeks, lettuce, pumpkins, sweet corn, swiss chard, tomatoes, turnips, winter squash, zucchini
September
Plant: bearded irises, beets, broccoli, brussels sprouts, cabbages, carrots, cauliflower, celery, cilantro, collard greens, cucumbers, daffodils, figs, green beans, green onions, kale, leeks, lettuce, marigolds, parsley, peas, petunias, radishes, snapdragons, spinach, strawberries, swiss chard, turnips, zucchini
October
Plant: beets, black-eyed susans, broccoli, brussels sprouts, cabbages, carrots, cauliflower, celery, cilantro, collard greens, coneflowers, dill, figs, garlic, green onions, hollyhocks, kale, leeks, lettuce, marigolds, nasturtiums, onions, oregano, parsley, peas, petunias, poppies, radishes, ranunculus, rosemary, sage, snapdragons, spinach, sweet peas, swiss chard, thyme, turnips, wildflowers
November
Plant: asparagus, bearded irises, beets, black-eyed susans, broccoli, brussels sprouts, cabbages, carrots, cauliflower, celery, cilantro, collard greens, coneflowers, crocuses, daffodils, dill, green onions, hollyhocks, hyacinths, kale, lettuce, mints, nasturtiums, onions, oregano, parsley, peas, petunias, poppies, radishes, ranunculus, sage, snapdragons, spinach, sweet peas, swiss chard, thyme, turnips, wildflowers
December
Plant: asparagus, beets, black-eyed susans, broccoli, cabbages, carrots, cauliflower, celery, cilantro, collard greens, dill, green onions, kale, lettuce, mints, nasturtiums, onions, oregano, parsley, peas, petunias, poppies, radishes, sage, snapdragons, spinach, sweet peas, swiss chard, thyme, turnips
Sources for the Arizona Low Desert calendar
- Vegetable Planting Calendar for Maricopa County (AZ1005, rev. 2018) · University of Arizona Cooperative Extension
- Planting and Harvesting Calendar for Gardeners in Yuma County (AZ1615, reviewed 2020) · University of Arizona Cooperative Extension
- Flower Planting Guide for the Low Desert (AZ1100a) · University of Arizona Cooperative Extension, Maricopa County
- Growing Common Figs in the Low Desert (AZ1636) · University of Arizona Cooperative Extension
- January Monthly Reminder (Pima County Master Gardeners) · University of Arizona Cooperative Extension, Pima County Master Gardeners
- February Monthly Reminders (Pima County Master Gardeners) · University of Arizona Cooperative Extension, Pima County Master Gardeners
- March Monthly Reminders (Pima County Master Gardeners) · University of Arizona Cooperative Extension, Pima County Master Gardeners
- September Monthly Gardening Guide (Pima County Master Gardeners) · University of Arizona Cooperative Extension, Pima County Master Gardeners
- October Monthly Gardening Guide (Pima County Master Gardeners) · University of Arizona Cooperative Extension, Pima County Master Gardeners
- November Monthly Gardening Guide (Pima County Master Gardeners) · University of Arizona Cooperative Extension, Pima County Master Gardeners
Planting months by plant
| Plant | Plant in | Group |
|---|---|---|
| Asparagus | Nov–Feb | Vegetables |
| Basil | Feb–May | Herbs |
| Bearded Irises | Sep, Nov | Flowers & bulbs |
| Beets | Sep–Mar | Vegetables |
| Black-eyed Susans | Oct–Mar | Flowers & bulbs |
| Blackberries | Jan | Fruit |
| Broccoli | Aug–Jan | Vegetables |
| Brussels Sprouts | Aug–Nov | Vegetables |
| Cabbages | Aug–Jan | Vegetables |
| Cantaloupes | Feb–Jul | Vegetables |
| Carrots | Aug–Apr | Vegetables |
| Cauliflower | Aug–Jan | Vegetables |
| Celery | Aug–Dec | Vegetables |
| Cilantro | Sep–Dec | Herbs |
| Collard Greens | Aug–Feb | Vegetables |
| Coneflowers | Oct–Nov | Flowers & bulbs |
| Cosmos | Mar–Jun | Flowers & bulbs |
| Crocuses | Nov | Flowers & bulbs |
| Cucumbers | Feb–Apr, Aug–Sep | Vegetables |
| Daffodils | Sep, Nov | Flowers & bulbs |
| Dahlias | Mar–Apr | Flowers & bulbs |
| Dill | Oct–Feb | Herbs |
| Eggplants | Mar | Vegetables |
| Figs | Feb–Mar, Sep–Oct | Fruit |
| Garlic | Oct | Vegetables |
| Green Beans | Mar–Apr, Jul–Sep | Vegetables |
| Green Onions | Aug–Apr | Vegetables |
| Hollyhocks | Feb–Mar, Oct–Nov | Flowers & bulbs |
| Hyacinths | Nov | Flowers & bulbs |
| Kale | Aug–Dec | Vegetables |
| Lavenders | Feb | Herbs |
| Leeks | Jan, Aug–Oct | Vegetables |
| Lettuce | Aug–Feb | Vegetables |
| Marigolds | Feb–Jun, Sep–Oct | Flowers & bulbs |
| Mints | Nov–Dec | Herbs |
| Nasturtiums | Oct–Jan | Flowers & bulbs |
| Okra | Mar–May | Vegetables |
| Onions | Oct–Feb | Vegetables |
| Oregano | Oct–Feb | Herbs |
| Parsley | Sep–Jan | Herbs |
| Peanuts | Mar–Apr | Vegetables |
| Peas | Sep–Feb | Vegetables |
| Peppers | Feb–Mar, Jul | Vegetables |
| Petunias | Sep–Mar | Flowers & bulbs |
| Poppies | Oct–Feb | Flowers & bulbs |
| Potatoes | Jan–Mar | Vegetables |
| Pumpkins | Mar, Jul–Aug | Vegetables |
| Radishes | Sep–Apr | Vegetables |
| Ranunculus | Feb–Mar, Oct–Nov | Flowers & bulbs |
| Raspberries | Jan | Fruit |
| Rosemary | Mar, Oct | Herbs |
| Roses | Jan–Mar | Flowers & bulbs |
| Sage | Oct–Dec | Herbs |
| Snapdragons | Sep–Feb | Flowers & bulbs |
| Spinach | Sep–Feb | Vegetables |
| Strawberries | Jan, Sep | Fruit |
| Sunflowers | Feb–Jul | Flowers & bulbs |
| Sweet Corn | Feb–Apr, Jul–Aug | Vegetables |
| Sweet Peas | Oct–Feb | Flowers & bulbs |
| Sweet Potatoes | Mar–Jun | Vegetables |
| Swiss Chard | Aug–Jan | Vegetables |
| Thyme | Oct–Dec | Herbs |
| Tomatoes | Feb–Mar, Jul–Aug | Vegetables |
| Turnips | Aug–Feb | Vegetables |
| Watermelons | Feb–Mar | Vegetables |
| Wildflowers | Oct–Nov | Flowers & bulbs |
| Winter Squash | Mar, Jul–Aug | Vegetables |
| Zinnias | Mar–Jun | Flowers & bulbs |
| Zucchini | Feb–Apr, Aug–Sep | Vegetables |
Cities in Arizona Low Desert
Which places belong to this region: Arizona cities in the low desert below about 3,500 ft elevation: the Phoenix metro area (Phoenix, Scottsdale, Mesa, Tempe, Gilbert, Chandler, Glendale, Peoria and nearby cities in Maricopa and Pinal counties), Tucson and the lower Pima County valleys, and Yuma and the lower Colorado River valley. Excludes higher towns such as Prescott, Flagstaff, Sierra Vista and Payson.