How to Start Your Summer Garden in Minnesota

By
April 17, 2025

9 practical tips to get you growing.

Spring Prep Tips for Success

Spring is finally here in Minnesota—birds are singing, snow is (mostly) gone, and the itch to dig into the soil is real. Whether you're a seasoned green thumb or a total newbie, now is the perfect time to prep your garden for a lush, vibrant summer season. Here are some practical tips to get you growing:

1. Know Your Zone & Frost Dates

Minnesota falls into USDA hardiness zones 3a to 4b, which means timing is everything. In most parts of the state, the last frost date falls between early May and early June. Keep an eye on local forecasts and wait to transplant tender plants (like tomatoes and peppers) until after the risk of frost has passed.

2. Plan Before You Plant

Sketch out your garden layout and decide what you want to grow. Think about:

  • Sunlight – Most veggies and flowers need 6+ hours a day.
  • Companion planting – Some plants grow better together (like basil with tomatoes).
  • Rotation – Avoid planting the same crops in the same spots year after year to prevent disease.

3. Prep Your Soil

Cold, compacted soil needs a little TLC before it can support summer growth. Here’s how:

  • Wait until the soil is dry enough to work—if it clumps in your hand, it’s still too wet.
  • Turn it over and mix in compost or well-rotted manure.
  • Consider a soil test for nutrient balance and pH.

4. Start Seeds Indoors (If You Haven’t Already)

If you haven’t started your seeds indoors, there’s still time for fast growers like cucumbers, squash, and herbs. Otherwise, look for quality seedlings at your local garden center in late April or May.

5. Harden Off Seedlings

Before moving indoor plants outside permanently, gradually expose them to the elements over 7–10 days. Start with a few hours in dappled sunlight and work up to full days—this prevents transplant shock and sad, wilted plants.

6. Mulch Early, Weed Less Later

Once your seedlings are in the ground, add a layer of mulch (straw, shredded leaves, or grass clippings). It helps lock in moisture, suppress weeds, and keep the soil temp steady—especially important during Minnesota's occasional summer heat waves.

7. Keep an Eye on the Weather

Minnesota springs can be unpredictable—sunny one day, snow flurries the next. Stay flexible and keep frost cloths or row covers on hand in case of a late cold snap.

8. Attract the Pollinators

Plant native flowers like coneflowers, bee balm, and black-eyed Susans to bring in bees, butterflies, and hummingbirds. Your veggies will thank you for it!

9. Be Patient and Enjoy the Process

Gardening in Minnesota means working with a shorter growing season, but with thoughtful planning and care, you can enjoy a gorgeous garden all summer long. Take the time to observe, experiment, and learn—you’ll get better every year.

Final Thought

Spring is nature’s way of saying “Let’s grow!” So grab your gloves, dust off those garden tools, and get outside. Summer beauty begins now.

Want more local gardening tips or resources? Let us know—we’d be happy to share! Contact Bold North Realty & Auctions at (218) 766-9607.