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Iris pseudacorus (Yellow Flag Iris) seeds

Iris pseudacorus (Yellow Flag Iris) seeds

Regular price £2.99 GBP
Regular price Sale price £2.99 GBP
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Beautiful native wildflower with showy, buttery yellow flowers and narrow, upright, lance shaped leaves commonly found on pond edges where it spreads in attractive, naturalised drifts.  Perfect for wildlife gardens and boggy areas in the garden where it will thrive.  Very attractive to bees and other insects including damselflies and dragonflies.

Hardy Perennial
Flowers: May to August
Height: 1-1.5m
Position: Sun or semi shade in up to 30cm water

Packet of 25 seeds

Caution:  All plant parts mildly toxic if ingested.


RHS Plants for Pollinators. 

The RHS Plants for Pollinators mark is only given to plants that support pollinating insects. Find out more at



These seeds have a dormancy which needs to be broken by a period of cold.  Sow indoors at any time or outdoors in autumn.

Outdoors: Scatter the seed on well raked soil, rake in lightly and water.  If sowing in rows, leave 25cm between rows. Germination can take several months and is most likely to occur in spring after dormancy has been broken by the winter cold.  When they do appear, keep the seedlings watered and thin out as necessary.  To prolong flowering and prevent self seeding, remove the seedheads just as the petals start to fall.

Indoors:  Sow on the surface of moist compost and cover very lightly with a fine sprinkling of compost, vermiculite or perlite.  Seal in a polythene bag and place in the fridge for 4 weeks.  After this, move to a warm place or propagator and maintain at around 21C.  After germination, grow on in slightly cooler conditions, around 15C, repotting as necessary. After all risk of frost has passed, gradually acclimatise to outdoor conditions and plant out 25cms apart. 


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RP Seeds delivery - £1.35 and free on orders over £25  

We offer prompt order dispatch within 1-2 working days by Royal Mail.  Delivery time will normally be within 2-3 days but may vary due to the current situation.

Shipping is only £1.99 and FREE on orders over £30

Due to phytosanitary regulations we are unable to send seeds outside the UK.  If a mail forwarding service in the UK is used to send your order abroad, please be aware that we will not take responsibility for orders confiscated by customs.


If an order is returned to us as undelivered by the postal service, we will refund the cost of the products purchased, not the delivery charge. When a service other than standard delivery is used, we will also deduct this from the refund (eg. signed for, special delivery or courier charges).  It is the customer's responsibility to ensure the delivery address on the order is correct. 

Please report any orders delivered damaged or incorrect, and any missing orders not delivered within 14 days of the order date by emailing us:




All our seed packaging and most of our postal packaging is paper based and can be recycled.

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Store seeds in a cool, dry place.