Candide
Download the free app
Download on the App Store
Get it on Google Play
Candide logo
Download on the App Store
Get it on Google Play
1/2

Yellow Flag Iris

Iris pseudacorus

Yellow iris, Jacob's sword, Water flag, Water skegs, Yellow flag, Yellow fleur-de-lis (Eng.)

1/2

Iris pseudacorus is a familiar plant, native to the British Isles, seen in ponds & damp ground. Its specific epithet, meaning "false acorus" refers to the similarity between its leaves and those of the Acorus calamus, being distinctly veined and sword-like in shape. The plant is tall, and very striking when in flower.

Planning

Difficulty
Easy
Flowering time
Summer, Spring
Fruiting time
Autumn

Harvesting

Pick flowers in early summer.

Propagation

Seed
Can be sown in early spring in a cold frame in compost.
Division
Divide anytime from mid-summer to autumn and plant directly into the new location.

Special features

Attracts useful insects
Loved by dragonflies and damselflies.
Wet sites
Thrives in margins of ponds, streams or in damp ground.

Geography

Origin
Europe Western Asia, Northwest Africa
Natural climate
Temperate

Environment

Light
Full Sun, Partial Sun
Soil moisture
Wet
Soil type
Clay, Loam
Soil PH preference
Acid
Frost hardiness
Hardy

Uses

Medicinal
The root is said to have medicinal properties, but is toxic, so only ever through a medical practitioner.
Water treatment
This plant has been used as a form of water treatment since it has the ability to take up heavy metals through its roots and is featured in many AS Level Biology practicals as its ability to grow in low pH levels makes it a useful indicator.

Personality

Family
Iridaceae
Flower colour
, Yellow
Scent
None

Problems

May be attacked by slugs, snails and thrips, but generally pest and disease free.

Companion plants

Plant with water loving or bog species.

Download the free app

Download on the App Store
Get it on Google Play