Iris pseudacorus
yellow flag iris
Sulphur yellow flowers, often with brown markings, appear from midsummer amongst the upright grey-green leaves of this vigorous water marginal. This native, evergreen yellow flag iris was once commonly found on marshy land and riversides and is ideal for planting at the margins of a large lake or pool. Iris pseudacorus also flourishes in deep, reliably moist soil that has been enriched with well-rotted organic matter. Great for wildlife and bog gardens, too.
How to care for Iris pseudacorus:
These plants are potted up (using a suitable aquatic compost) into aquatic pots. These pots are made of a fine mesh, which allows water to circulate through the compost, providing the plants with both oxygen and nutrients.
If you are using them as a aquatic plant, they can be planted into neutral to acidic soil (for best results) up to a water covering of of 25cm (10in) deep. To enhance flowering divide congested clumps every three to five years.
If you are using them as a aquatic plant, they can be planted into neutral to acidic soil (for best results) up to a water covering of of 25cm (10in) deep. To enhance flowering divide congested clumps every three to five years.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
1.5m
Eventual spread:
1.5m
Position:
Full sun / light shade
Rate of growth:
Fast-growing
Soil:
Moderately fertile, moist, well-drained soil / Reliably damp or boggy
Hardiness:
Fully hardy
-
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
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Humans/Pets: Harmful if eaten
9cm pot
£12.99
available to order from summer
Unavailable
3 × 9cm pots
£34.00
£11.33 each
available to order from summer
Unavailable
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