Siberian iris (Iris sibirica) is a type of perennial flowering plant that is known for its tall spikes of colorful, fragrant flowers. They are relatively easy to grow and care for in the right conditions.
When planting Siberian iris, choosing a location that receives full sun to partial shade and has well-drained soil is important. They can tolerate a wide range of soil types, but prefer moist, well-drained soil that is neutral to slightly acidic in pH.
To plant a Siberian iris, dig a hole slightly larger than the root ball, and space them about 18 inches apart. Gently remove the plant from its container, loosen any tangled roots, and place it in the hole. Backfill with soil and water well.
Siberian iris requires regular watering to keep the soil consistently moist but not waterlogged. They also benefit from regular fertilization with a balanced fertilizer, such as a 10-10-10, applied every four to six weeks during the growing season.
Siberian iris do not require pruning, but the foliage may be cut back to the ground after it has yellowed in the fall. This will reduce the amount of debris around the plants and also discourage pests.
Siberian iris is relatively disease-free and pest-free, but they can be susceptible to pests such as iris borers, which are the larvae of a moth that feeds on the leaves and flowers of the plant. These can be controlled with insecticides.
Finally, Siberian iris are hardy to cold climates but they should be protected by mulching around the base of the plant in the fall to protect the roots from frost. They usually bloom in late spring to early summer.