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Special Offers

5 Tulip 'Ice Cream' bulbs £3.99 with any order

16 Hyacinth bulbs £3.99 with any order

2 Clematis Jumbo Plug plants £3.99 with orders over £30

Acorus gramineus 'Ogon' (Marginal Aquatic)Slender Sweet Flag

Just £6.99

A lovely accent plant

Slender cream-striped foliage

Plenty of year-round structure

1 x 9cm potted grass plant £6.99 Despatch: within 3 days
Please note: This product cannot be delivered outside the United Kingdom.
Description How to Grow More Info Delivery
Grown for its attractive foliage, this showy perennial is perfect for softening the edges of ponds with its aromatic, semi-evergreen leaves. The arching, yellow and green variegated foliage of Acorus gramineus 'Ogon' create wide fans with a low, clump forming habit. Slender Sweet Flag enjoys a moist position in a bog garden or as a marginal aquatic at the water edge. Height: 25cm (10"). Spread: 35cm (14"). Planting depth: Zone 1 & 2 to 5cm depth.

Plant height and spread is seasonal therefore we list by pot size rather than a defined plant size. The height and spread of the plant delivered will vary depending on the season, meaning arrival images are an indication only.

Thompson & Morgan strives to ensure that all its plants are delivered to you in the perfect condition for planting. Sadly, the time it takes to deliver to certain locations in the UK means that we can't guarantee this, so regretfully we are unable to ship live plants to the following areas: HS, IV41-IV49, IV51, IV55-56, KW15-KW17, PA34, PA41-48, PA60-PA78, PA80, PH40-PH44, TR21-TR24, ZE1-ZE3

1 x 9cm potted grass plant (58570)

Acorus plants require little maintenance. Tidy foliage that has died back in Autumn by trimming to just above the water surface.
Plant Acorus in reliably moist borders or boggy soil at the edge of ponds. Slender Sweet Flag can be planted to a maximum depth of 5cm (2") below water level. Choose a position in full sun.


Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £1.95.

Orders which include any other products will incur a delivery charge of £4.95.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.90 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

Satisfaction Guaranteed

For your complete peace of mind, our Home and Garden products may be returned to us within 30 days of purchase for a refund of the purchase price. Items must be returned unused, at your cost and in mint condition. All items carry a manufacturer's 12 month defects warranty.