Species Siberian iris Guide
blue-white petals, and long, narrow, green leaves

Siberian iris

Iris 'Rill'

Cycle:

Herbaceous Perennial

Watering:

Frequent

Propagation:

Division,Cormlet Propagation,Seed Propagation,Cutting

Hardiness Zone:

3 - 8

Flowers:

Blue with pale blue and white styles Flowers

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Drought Tolerant:

Yes

Care Level:

Medium

watering

Water Siberian iris (Iris 'Rill') every 7-10 days when the soil is dry up to a 2” depth. In the summer, Siberian iris may need to be watered more frequently. When watering, make sure to give the plant enough hydration to thoroughly soak the soil. Avoid overwatering, as too much water can lead to root rot.

sunlight

Siberian iris (Iris 'Rill') requires full sun for 6 to 8 hours each day for optimal growth and bloom. In areas with hot summers, this plant should be provided with partial shade during the hottest part of the day. In cooler climates, however, it can tolerate full sun all day. Siberian iris is hardy in USDA hardiness zones 3 through 8.

pruning

Siberian iris (Iris 'Rill') requires minimal pruning. A light pruning after flowering occurs in late May or June, helps to improve the flower production of the following year. This pruning involves removing any dead or damaged foliage, trimming back the long stems, and removing any remaining seed pods. If the plant is becoming too large, a more severe pruning can be done in August when the plant is dormant. This may involve cutting back the foliage and stems to about a foot high and reducing the size of the plant itself. It’s important to remember to fertilize the plant after major pruning.