Yellow Flag Iris | Iris pseudacorus
The UK-native flag iris
Grown by Caroline
Enfield
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Order before 11pm for delivery within 3-5 working days
Currently out of stock
Order before 11pm for delivery within 3-5 working days
Order before 11pm for delivery within 3-5 working days
Order before 11pm for delivery within 3-5 working days
Plant diary
- Flower
- Harvest
Yellow Flag Iris
Iris pseudacorus
- This UK native species is also known as the Yellow Flag Iris, and has the classic 'fleur-de-lis' flower shape. Flowers are a golden butterscotch yellow with delicate brown or violet veining
- Attracts pollinating insects including bees
- Long flowering from May to July
- Ideal for growing in the shallow edges of your pond or on shallow planting shelves within it
- Irises are the perfect plants to encourage insects like damselflies and dragonflies to your pond, providing shelter and a sunny place to perch.
- Marginal plants soften and add interest to the borders of your pond and are also suitable for planting in bog gardens or moist soil borders.
- Harmful if eaten
What to expect
Supplied as
Eventual height
Eventual spread
Flower colour
Habit
Hardiness
Spacing
Will this grow in my garden?
Can I grow this in a pot?
Yes, the Yellow Flag Iris is well-suited to being grown in a pot, provided it is kept in consistently moist or waterlogged soil.
How big does it get?
The Yellow Flag Iris is a vigorous plant that can reach a height of 1-1.5 metres and a spread of 1 metre.
How much sunlight does this need?
The Yellow Flag Iris thrives in full sun to partial shade.
What kind of soil does this plant prefer?
Yellow Flag Iris thrives in heavy, consistently moist or waterlogged soil, particularly at the edge of a pond.
How much watering does this plant need?
The Yellow Flag Iris thrives in boggy areas and requires regular watering to maintain a waterlogged soil environment.
Will this plant need pruning?
The Yellow Flag Iris should have its old foliage cut back to about 10 cm above the water level in late autumn before temperatures drop below 5°C.
How hardy is this plant?
Iris pseudacorus is fully hardy (H7), withstanding temperatures below -20°C throughout the UK.
The wider garden
Enfield
Meet Caroline
A deep dive into sustainable gardening
Nestled amongst wildlife meadows and resident ducks, Caroline’s award winning pond plant nursery in Enfield has been making a splash since 1965, when they invented the (recycled, obvs) aquatic basket. Sixty years and multiple RHS gold medals later, they’re still surprising us with new varieties every year!
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