Iris Sibirica 'Baby Sister'

Siberian Iris

Iris sibirica ‘Baby Sister’ — commonly called Siberian iris — is a compact clump-forming perennial with small violet-blue flowers accented by subtle lighter markings, blooming in late spring to early summer above fine-textured, narrow green foliage. Its smaller size and graceful habit make it especially useful in smaller borders, edging, and naturalistic plantings where delicate vertical texture is desired.

Type: Perennial

Mature Size:
Width: 12–18 in.
Height: 18–24 in.

USDA Zones: 3a–8b

Form: Upright, clumping

Light: Full sun to partial shade

Soil: Average to moist, well-drained soil; adaptable to clay and loam

Water: Medium; prefers evenly moist soil but tolerates short dry periods once established

Wildlife: Deer resistant; attracts butterflies

Features & Landscape Uses: Excellent for borders, rain gardens, pond edges, and naturalized groupings. Fine foliage remains attractive through the growing season and adds texture after flowering.

Care: Keep evenly moist during establishment and flowering. Divide clumps every 4–5 years in early spring or late summer if flowering declines. Remove spent flower stalks after bloom.

Plant type

Perennial

Height

18-24''

Width

12-18"

Hardiness zones

3–8

Sunlight

Full Sun

Growth rate

Fast

Bloom time

Early Summer, Summer

Flower color

White

Leaf color

Green

Fall color

Dark Green, Green

Soil

Clay, Moist well-drained, Tolerant of Clay

Landscape use

Accent Plant, Mass Planting

Shape

Clumping, Upright

Fragrant

Yes

Deer resistant

Yes

Drought tolerant

No