Iris Pseudacorus
Product Description
Bring natural beauty and structure to your pond or wetland garden with Iris Pseudacorus, commonly known as the Yellow Flag Iris. This hardy, moisture-loving perennial produces tall, sword-like green foliage and vibrant golden-yellow blooms that provide a stunning contrast against water and lush greenery. Blooming from late spring to early summer, this native iris is an excellent choice for pond edges, marshy soils, and wildlife gardens, attracting pollinators and beneficial insects.
Plant Description
Flowers: Large, bright yellow blooms with delicate darker markings
Foliage: Tall, upright, sword-shaped green leaves providing year-round structure
Position: Ideal for pond margins, wetland gardens, and damp borders
Flowering Period: Late spring to early summer (May to July)
Height & Spread: 90-150cm tall, spread 50-100cm
How to Grow
Planting Time: Spring or autumn
Depth & Spacing:
✅ Plant 5-10cm (2-4 inches) deep if in damp soil; submerge up to 10cm in shallow water
✅ Space 40-60cm (16-24 inches) apart to allow for natural spreading
Soil Type: Thrives in moist, boggy soil but can tolerate drier conditions once established
Sunlight: Full sun to partial shade
Care Tips:
✅ Water well, especially in the first growing season
✅ Cut back spent flower stems after blooming to encourage new growth
✅ Remove any old or damaged leaves in autumn to keep plants tidy
✅ Divide clumps every 3-5 years if overcrowded
With its striking golden-yellow blooms, architectural foliage, and ability to thrive in wet conditions, Iris Pseudacorus is a perfect choice for natural ponds, water gardens, and wetland habitats. Whether planted as a focal point or as part of a native planting scheme, this variety ensures a vibrant and wildlife-friendly display year after year.
Sent in a 12 x 20cm capper
Specs & Details
- Botanical Name: Iris Pseudacorus
- Flower Colour: Yellow
- Leaf Colour: Green
- Life Cycle: Perennial
- Years to Establish: 1st year
- Sunlight: Full Sun, Partial Shade
- Scented: No
- Pollinator Friendly: Yes
- Mouse Resistant: Yes
- Rabbit Resistant: No
- Deer Resistant: Yes
- Toxicity: Skin/eyes irritant
Delivery Information
DELIVERY INFORMATION
THIS IS A PRE-ORDER PRODUCT
DELIVERY TO UK
UK MAINLAND DELIVERY
- Delivered in 2-3 days from dispatch
- Tracked delivery with DPD, APC or Royal Mail (depending on type of product)
- Pallet deliveries will be sent via Palletforce
Basket Weight
Delivery Cost
Up to 3kg
£5.95 (Royal Mail Tracked 48HR & Royal Mail Tracked 24HR)
3kg and above
£5.95 (DPD Next Day Delivery, order before 2pm)
SCOTTISH HIGHLANDS, UK ISLANDS, ISLE OF WIGHT, ISLE OF MAN, JERSEY, GUERNSEY
- Maximum order weight of 200kg
- Delivered in 3-7 days
- Tracked delivery with DPD, APC or Royal Mail (depending on type of product)
Basket Weight
Delivery Cost
Up to 20kg
£5.95
Plus each additional 20kg
£5.95 per 20kg
NORTHERN IRELAND
Please contact us to discuss phytosanitary restrictions and delivery options.
DELIVERY TO IRELAND, EU & EEA
We do not currently ship to the EU or EEA.
DELIVERY TO REST OF WORLD
We do not currently ship to the USA, Canada, Australia, New Zealand or the Rest of the World.
- Bulb:
- 1
Pairs well with
Extra Fast Delivery! Ships within 1-2 business days.
4.8 Star Rating
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FAQs
Please read our FAQs page to find out more.
What's the best compost for my flower bulbs?
We would recommend a compost that contains nutrients that last up to 6 months to promote strong, healthy roots, and often includes a wetting agent to improve water retention and drainage for a vibrant spring display.
Here's the perfect one: Click Here
How can I prevent my bulbs from rotting and ensure they bloom again?
Bulbs rot in wet soil! You must have light, well-drained soil. Work compost or organic matter 8-12 inches deep into the planting bed to ensure rapid drainage and aeration.
Plant most bulbs in full sun or part sun for the long-term energy recharge.
What is the most critical step for getting flowers next year after the current blooms fade?
Do not cut the foliage (leaves) after the flower dies. The green leaves need approximately 8 weeks to yellow and brown naturally. This post-bloom period is when the bulb recharges its energy (carbohydrates) for next year’s flower. Cutting them early causes bloom failure!
How deep should I plant my bulbs?
Plant bulbs roughly three times as deep as the bulb’s height (e.g., a 2-inch tall bulb should be planted 6 inches deep). This depth provides crucial thermal protection.
You'll find the exact specifications on the bulbs page/
Do you ship to Northern Ireland or the EU?
At present, we’re unable to ship to Northern Ireland due to post-Brexit regulations. The additional paperwork and costs involved would make it too expensive for customers.
We hope this situation will change in the near future.