Species Siberian iris
white-yellow flower with yellow center and green leaves

Siberian iris

Iris 'Butter and Sugar'

Siberian iris (Iris 'Butter and Sugar') is an elegant and showy perennials. It produces striking cream-yellow centred semi-double flowers with gentle tints of lavender, purple, and white. The foliage is grass-like in texture with narrow ribbed leaves that invade deep into the soil. This low-maintenance species is a favoured garden choice for its beautifully bright and richly-coloured blooms. It is best grown in moist, well-drained soil in a sunny spot. With its multi-coloured petals and unusual foliage, Siberian iris is an eye-catching addition to any outdoor space.

Cycle:

Herbaceous Perennial

Watering:

Frequent

Propagation:

Division,Cormlet Propagation,Seed Propagation,Cutting

Hardiness Zone:

3 - 8

Flowers:

Yellow falls and white standards Flowers In Spring

Sun:

Full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Salt Tolerant:

Yes

watering

Siberian iris (Iris 'Butter and Sugar') should be watered deeply to encourage strong root growth. They should receive at least 1" of water per week from rain or irrigation. During hot, dry months, these plants may require additional water. Irrigate deeply, allowing the soil to become moist, but not wet. Allow the soil to dry out slightly between watering. Applying a layer of mulch around the plants can help to conserve water and reduce weeds.

sunlight

Siberian iris (Iris 'Butter and Sugar') plants grow and flower best in full sun, with at least 6 hours of direct sunlight every day. In areas with strong sun and heat, they should be provided with some shade in the afternoon. They are quite adaptable and can tolerate light shade, but will produce fewer blooms. With adequate sunshine and moisture, Siberian iris plants will bloom in the early summer. Once they have finished flowering, they require less light and can even tolerate partial shade.

pruning

Siberian iris (Iris 'Butter and Sugar') should be pruned in early spring, when new growth just begins to appear. Pruning should be minimal, as these plants don't need excessive pruning to maintain their shape and size. Some of the old, flowering stems should be trimmed off at the base to allow new growth to emerge. Deadheading of spent blooms is also recommended to keep the plants blooming throughout the season. In late summer, old foliage should be trimmed off, and the plant can be pruned back by 1-third of its original height. Don't prune off any new growth, however, as it will also remove the next year's flower buds.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Iris 'Butter and Sugar' typically start flowering in late May or early June.

Starts Flowering

Iris 'Butter and Sugar' typically start flowering in late May or early June.

Hardiness Map