In Minnesota, the ideal time to plant iris bulbs is from mid-September to mid-October. This gives the bulbs enough time to take root before the ground freezes. Planting lilies in late summer is also recommended. The best conditions for planting fall bulbs in Minnesota gardens are when nighttime temperatures range between 40º and 50º.
It's best to place the bulbs in the ground 6 to 8 weeks before the ground freezes, giving them enough time to develop a strong root system. These perennials are easy to grow, and by planting them between late summer and early fall, you can ensure that they will bloom in the spring. Make sure that your iris plants get at least half a day of full sun or a full day of sun for more vibrant colored flowers. Additionally, it's important to provide good drainage to prevent the iris from getting wet with their feet.
Bearded lilies are the most commonly available in Minnesota and come in hundreds of varieties in colors ranging from dark purple to cream. Tulips (tulip), daffodils (Narcissus), grape hyacinth (Muscari), irises, crocuses (saffron), snowdrop (Galanthus nivalis), snow glory (Chionodoxa forbesii), windflower (Anemone blanda), winter aconite (Eranthis hyemalis) and guinea fowl (Fritillaria melaria) eagris) are great additions to Minnesota garden designs.