May is prime warm-season planting time in mild-winter zones, with soil temperatures rising and growth accelerating. This is the month to get main-season crops established outdoors, keep up with succession sowing, and set up supports before vines and tall plants take off. Watch moisture as days warm, mulch to hold soil moisture, and keep an eye out for the first big flush of pests as the garden hits its stride.

Indoors (fresh harvests):

  • Microgreens: peas, broccoli, sunflowers, arugula
  • Sprouts: alfalfa, broccoli, radish, mung
  • Herbs & greens under lights: chives, parsley, mint

Transplants to move outdoors (harden first): pepper, tomato, eggplant, melons, basil, okra — these should go out early May if not already in the ground

Crops that can be directly sown outdoors in May: beans, corn, cucumber, squash, melons, okra, sunflower, basil, dill, sweet potato slips. Succession sow beets, carrots, and radishes early in the month before heat sets in.

Cover crops: buckwheat, cowpeas, sorghum-sudangrass

Note: Warm-season crops should be going directly outdoors now, not starting under lights.

Tip: An Olympia, WA zone 8 is very different from a Jackson, MS zone 8. Consider checking with your state Extension Service office for more specific recommendations and guidelines.

Use your USDA zone as a guide. Microclimates matter — coastal/urban spots run warmer; high elevation runs colder.

50 100 true //store.trueleafmarket.com/cdn/shop/t/54/assets/review-fallback.json?v=33078429469613971781712858278
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376 Items
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Seed Assortment: Basic Dozen MicrogreensSeed Assortment: Basic Dozen Microgreens
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Basil Seeds - Italian Large Leaf - Microgreens SeedsBasil Seeds - Italian Large Leaf - Microgreens Seeds
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Beet Rainbow Blend Compmid size pouch type seed packaging for - Beet Rainbow Blend Microgreen
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pH Test StripspH Test Strips
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Mustard - Mizuna Red Leaf - Microgreens SeedsMustard - Mizuna Red Leaf - Microgreens Seeds
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Mustard - Spinach (Komatsuna) - Microgreens SeedsMustard - Spinach (Komatsuna) - Microgreens Seeds
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Lettuce - Microgreens SeedsLettuce - Microgreens Seeds
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Crimson Clover - Organic - Microgreens SeedsCrimson Clover - Organic - Microgreens Seeds
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Fenugreek (Organic) - Microgreens SeedsFenugreek (Organic) - Microgreens Seeds
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Celery Microgreens SeedsCelery Microgreens Seeds
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Mustard - Mizuna Red Streaks - Microgreens Seedsmid size pouch type seed packaging for - Zinnia Magellan Series Orange
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Kale - Black Tuscan aka Lacinato or Dinosaur - Microgreens SeedsKale - Black Tuscan aka Lacinato or Dinosaur - Microgreens Seeds
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Basil - Cinnamon - Microgreens SeedsBasil - Cinnamon - Microgreens Seeds
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1020 Heavy Duty Microgreens Trays - No Holes - Green - Shallow
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Cress - Upland - Microgreens SeedsCress - Upland - Microgreens Seeds
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Superfood Mix - Microgreens Seeds (Organic)Superfood Mix - Microgreens Seeds (Organic)
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Seed Assortment: Microgreen Seeds - Soil SelectionSeed Assortment: Microgreen Seeds - Soil Selection
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custom box packaging for Self Watering Microgreens KitSelf Watering Microgreens Kit
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Radish - Minowase - Microgreens SeedsRadish - Minowase - Microgreens Seeds
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Swiss Chard Seeds - Ruby Red - Organic - Microgreens SeedsSwiss Chard Seeds - Ruby Red - Organic - Microgreens Seeds
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Mustard Seeds - Red Tatsoi - Microgreens SeedsMustard Seeds - Red Tatsoi - Microgreens Seeds
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Collards - Vates - Microgreens SeedsCollards - Vates - Microgreens Seeds
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Basil Seeds - Red Rubin - Microgreens SeedsBasil Seeds - Red Rubin - Microgreens Seeds
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Please Note that Acidic and Basic solutions come packaged in the exact same type and size of plastic bottle, for accessibility help, please contact customer service at 801-491-8700, and ask for help with product SKU 17666Microgreens pH Control Kit by General Hydroponics
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Bean Seeds - Black Garbanzo - Organic - MicrogreensBean Seeds - Black Garbanzo - Organic - Microgreens
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Radish - Champion - Microgreens SeedsRadish - Champion - Microgreens Seeds
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Fenugreek Seeds - MicrogreensFenugreek Seeds - Microgreens
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Beet - Bulls Blood (Organic) - Microgreens Seeds
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