3 years to reach maturity
This plant has no fragrance
More images of Yellow Flag Iris
Yellow Flag Iris Overview
Iris pseudacorus is a herbaceous flowering perennial from the Iridaceae family. It produces tall, blade-like leaves and erect stems with showy flowers that die back completely during winter. Often found in the wild in Northern Europe. This species is native to the British Isles, a common sight in ponds and damp ground. It will produce blooms which are a pale to deep yellow and sometimes have a dark purple or brown zone radiating from the centre of the petals. Flowers measure around 10cm across, they have 3 main large pendant petals, coloured yellow, with attractive brown venation, they appear from mid-summer. Leading onto dry capsule fruits measuring between 4-7cm in length, they contain numerous pale brown seeds. It has a suckering habit and spreads easily. Fully hardy and grows well in full sun or partial shade and moist, poorly-draining soil.
Yellow Flag Iris Companion Plants
Plant with water loving or bog species.
How to harvest Yellow Flag Iris
Pick flowers in early summer.
How to propagate Yellow Flag Iris
Can be sown in early spring in a cold frame in compost.
Divide anytime from mid-summer to autumn and plant directly into the new location.
Special features of Yellow Flag Iris
Attracts useful insects
Loved by dragonflies and damselflies.
Thrives in margins of ponds, streams or in damp ground.
Other uses of Yellow Flag Iris
Bog, aquatic, border, cutting bed.
The root is said to have medicinal properties, but is toxic, so only ever through a medical practitioner.
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.
Yellow Flowering Summer Plants
Love yellow flowers and looking for summer inspiration.