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What to Plant in May — USDA Zone 11b

Here's everything you can start, transplant, sow, and harvest in May in USDA Zone 11b. This zone has an average last spring frost around January 1 and first fall frost around December 31, with a growing season of approximately 364 days.

There are 35 planting activities for May in Zone 11b.

Zone 11b Year-round
364 days
❄
Last Spring Frost January 1
➔ 364 growing days ➔
❄
First Fall Frost December 31

Where Is Zone 11b?

AL — Zone 7b AL AR — Zone 7b AR AZ — Zone 8a AZ CA — Zone 9a CA CO — Zone 5a CO CT — Zone 6b CT DE — Zone 7a DE FL — Zone 9a FL GA — Zone 7b GA IA — Zone 5a IA ID — Zone 5b ID IL — Zone 5b IL IN — Zone 6a IN KS — Zone 6a KS KY — Zone 6b KY LA — Zone 8b LA MA — Zone 6a MA MD — Zone 7a MD ME — Zone 4b ME MI — Zone 5b MI MN — Zone 4a MN MO — Zone 6a MO MS — Zone 8a MS MT — Zone 4b MT NC — Zone 7a NC ND — Zone 3b ND NE — Zone 5a NE NH — Zone 5a NH NJ — Zone 7a NJ NM — Zone 6b NM NV — Zone 6b NV NY — Zone 5b NY OH — Zone 6a OH OK — Zone 7a OK OR — Zone 7a OR PA — Zone 6a PA RI — Zone 6b RI SC — Zone 8a SC SD — Zone 4a SD TN — Zone 7a TN TX — Zone 8a TX UT — Zone 5b UT VA — Zone 7a VA VT — Zone 4b VT WA — Zone 7a WA WI — Zone 4b WI WV — Zone 6a WV WY — Zone 4a WY AK — Zone 2a AK HI — Zone 11a HI
Zones: 1 2 3 4 5 6 7 8 9 10 11

Harvest in May

Plant Type Date Range Days to Maturity
Acorn Squash Vegetable 80–100 days
Amaranth Vegetable 90–120 days
Artichoke Vegetable 120–180 days
Basil Herb 50–75 days
Black Beans Vegetable 90–120 days
Butternut Squash Vegetable 85–110 days
Calabash Vegetable 80–120 days
Chayote Vegetable 120–180 days
Christmas Lima Beans Vegetable 80–100 days
Corn Vegetable 60–100 days
Cumin Herb 100–120 days
Delicata Squash Vegetable 80–100 days
Eggplant Vegetable 65–85 days
Ground Cherry Fruit 65–80 days
Honeydew Fruit 80–110 days
Hot Peppers Vegetable 70–120 days
Jicama Vegetable 120–180 days
Kabocha Vegetable 85–100 days
Kidney Beans Vegetable 85–110 days
Lemon Verbena Herb 60–90 days
Lemongrass Herb 75–120 days
Loofah Vegetable 100–150 days
Luffa Vegetable 90–150 days
Melon Vegetable 70–100 days
Peppers Vegetable 60–90 days
Spaghetti Squash Vegetable 85–100 days
Squash (Winter) Vegetable 80–120 days
Stevia Herb 60–90 days
Sunflower Vegetable 70–100 days
Sweet Potatoes Vegetable 90–120 days
Thai Basil Herb 50–75 days
Tomatillo Vegetable 60–85 days
Tomatoes Vegetable 60–85 days
Watermelon Vegetable 70–100 days
Winter Melon Vegetable 90–120 days

Other Months for Zone 11b

May Planting by State

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — local conditions may vary. Last updated: April 2026.

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