Cyperus involucratus (Marginal Aquatic)Cyperus alternifolius, Umbrella Grass

Tender Perennial

What is Tender Perennial?
A plant that lives for more than two years.
Susceptible to damage or death at temperatures below 5C.

Fulfilled and sold by Thompson & Morgan

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Please note: This product cannot be delivered outside the United Kingdom.
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Height Up to 75cm (29.5in)
Spread Up to 75cm (29.5in)

Tender Perennial

conservatorywater gardenexotic garden

Sun or semi shade

Flowering Months

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This tender perennial makes an excellent conservatory plant or aquatic marginal for indoor pools. Tall stems are topped with palm-like foliage and yellow-brown flower spikes throughout summer. Cyperus involucratus is commonly called the Umbrella grass due to its striking appearance. This eye-catching sedge is certainly the most ornamental of its genus and holds and RHS AGM. Height and spread: 75cm (30"). Planting depth: Zones 1 & 2 to a maximum depth of 5cm (1") below water level.

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.

1 x 3 litre potted cyperus plant (78133)

How to Grow
Plant Cyperus involucratus into consistently moist, boggy soil, or in the shallow margins of ponds to a maximum depth of 5cm (1") below water level. Choose a position in sun or semi shade.
More Info
Cyperus involucratis requires very little maintenance but must be protected from frost. It is best grown in a frost free conservatory or at the margins of an indoor pool. Trim back the old foliage to just above water level in autumn.

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 £2.99.

Orders which include any other products will incur a delivery charge of £4.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 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.

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




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