When is the best time of year to plant iris in central minnesota?

If you want some great information on all types of Iris--see the link below!



When to Plant



For best results, Iris should be planted in July, August or September. It's imperative that the roots of newly planted Iris be well-established before the growing season ends. In areas with hot summers and mild winters, September or October planting may be preferred.



Where to Plant



Iris need at least a half day of sun. In extremely hot climates some shade is beneficial, but in most climates Iris do best in full sun. Be sure to provide your Iris good drainage, planting either on a slope or in raised beds.



Soil Preparation

How to Drain



Iris will thrive in most well-drained garden soils. Planting on a slope or in raised beds helps ensure good drainage. If your soil is heavy, coarse sand or humus may be added to improve drainage. Gypsum is an excellent soil conditioner that can improve most clay soils. The ideal pH is 6.8 (slightly acidic), but Iris are tolerant in this regard. To adjust the pH of your soil, lime may be added to acidic soils or sulfur to alkaline soils. It is always best to have your soil analyzed before taking corrective measures.

When is the best time of year to plant iris in central minnesota?
Well I think it would be about the same as ours in Missouri, which is right now!

The roots need to get established before winter.

Iris need to keep their leaves until they start turning brown, that is how the rizone gets it's energy.

Remember don't plant them too deep! Fertilize in the spring and besure they get plenty of sun. Enjoy!!
Reply:Early spring after the danger of frost.
Reply:The best time to transplant Iris is 2-3 weeks after the finish of blooming. Dig the clump up and pry the rhizomes apart, discarding all shriveled and diseased parts. Stalks which produced flowers this year will not produce again. However they provide food to the new side shoots which will be next summers bloomers, so be sure to leave these new shoots attached to the mother. Cut the leaves back to about 6-7 inches.
Reply:Now - mid Sept. is the time to plant dormant divisions. Any time is O.K. for potted, growing plants. If you don't get to it until later....make sure you have plenty of bark mulch (4-5") on the surrounding soil so they don't get heaved out with freezing and thawing.