Flower garden tasks for the northern Midwest (Zones 4 to 5)
• Plant cool-season annual flowers, such as pansies, violas, lobelia, snapdragons and more, about six to eight weeks before your region's last average frost date. They thrive in cool weather and tolerate frost well. They're especially good in pots.
• Divide and transplant most summer- and fall-blooming perennials. They'll have plenty of time to get established by bloom time. Wait to divide spring-bloomers until fall.
• Continue to plant trees, shrubs and roses. You can plant both bare-root and container-grown types now.
Pictured: Spiky Dracaena, puckery coleus (Solenostemon scutellarioides), coralbells (Heuchera spp.), pansy blossoms (Viola spp.) and geranium leaves (Pelargonium spp.) create a lush springtime combination.