Michigan Gardening To Do List for May

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Planting time is here! We made it through another long, cold winter, Michigan!

Now, it’s time to get growing.

 

It’s time to get those transplants outside and time for more direct sowing in the garden. Just be sure to keep an eye on the weather forecast and those night time temps. A late freeze can zap your young plants, ruining all of your hard work. Check out our Michigan Frost Dates page to find the average date of the last frost in your area.

Be sure to harden off your transplants by setting them outdoors during the day and bringing them back inside at night for a week or two before you intend to plant them. And keep an eye on the soil moisture to ensure that your transplants do not wilt.

Also, now is a great time to plan out any succession planting you want to do this year. Johnny’s Select Seeds has an excellent succession planting calculator to help you plan ahead and stay on track.

Here is a quick list of sowing dates for many common vegetables:

Sow Indoors

  • Corn – Through May 21 (This usually does better sown directly into the garden, but if you’re trying to get a jump on your planting, you can certainly give it a try. Just try not to disturb the roots too much during transplanting.)
  • Cucumber – Through May 21
  • Melons – May 1 – May 21
  •  Pumpkins – Through May 21

Sow Outdoors

All of the following cool season crops can be sown outdoors during the month of May. Warmer season crops like cucumbers, melons, squash, and tomatoes can be direct sown toward the end of May (or early June) after soil temps rise a bit and the danger of frost passes.

  • Beets
  • Cabbage
  • Carrots
  • Cauliflower
  • Celery
  • Kale
  • Kohlrabi
  • Leaf Lettuces
  • Mustard Greens
  • Onions
  • Parsnips
  • Peas
  • Radish
  • Spinach
  • Swiss Chard
  • Turnips
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