SITE

Yellow Flag Iris

Botanical Name

Iris pseudacorus

Min Zone

3

Max Zone

9

Height

Up to 5 feet

Width

Up to 2 feet

Flowers

Late spring to early summer: yellow

Light

Full sun (wet soil), part shade (especially in hot, dry)

Soil

Moist to wet

Planting & Care

• Space plants 18 to 24 inches apart

Problems

Can be invasive in areas

Varieties

• Variegata - variegated foliage
• Alba - pale cream flowers
• I. pseudacorus var. bastardii - clear sulfur yellow flower