Minnesota springs can be unpredictable, but by late April, gardeners can start planting cool-season crops that are well-suited to the state’s chilly climate. Focus on hardy vegetables such as lettuce, spinach, radishes, peas, and onions. These plants can tolerate soil temperatures as low as 40°F. Start seeds indoors for a head start and transplant them once the danger of hard frost has passed.
For flowers, consider cold-tolerant varieties like pansies, violas, and snapdragons. These blooms can survive occasional frosts and brighten up the early garden. To stay on track, use a planting calendar specific to USDA Zones 3 and 4 and keep a soil thermometer handy. Soil should be workable and above 45°F before planting.