GardenWizzPlant Care Card

Stinking Iris

Iris foetidissima · Perennial

Hardiness
H6 Hardy — very cold winter (to −20 to −15°C)
Position
Full sun, Partial shade, Full shade
Height × Spread
— × 10–50 cm
Soil
—
Flowering
June–July
Toxicity
Harmful if eaten — all parts, especially the berries and seeds, cause stomach upset; the sap may irritate skin. (RHS: harmful if eaten / skin irritant.)

The Gardening Year

J
F
M
A
M
J
J
A
S
O
N
D
🪴 Plant out
🌸 In flower

Watch out for

Slugs and snails: Use physical barriers like copper tape or apply iron phosphate pellets around the base.

Root rot: Ensure well-draining soil and avoid overwatering; remove affected sections if detected.

Vine weevil: Apply nematode treatments to the soil in autumn or use systemic insecticides for severe infestations.

Powdery mildew: Improve air circulation and spray with a fungicide or milk solution if necessary.

Full guide: gardenwizz.com/plants/iris-foetidissima © GardenWizz — UK gardening encyclopedia