Carex riparia - Greater Pond Sedge, Native Pond Marginal Plant
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Carex riparia - Greater Pond Sedge, Native Pond Marginal Plant
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Product specifications and features
Product Description
Carex riparia - Greater Pond Sedge, Native Pond Marginal Plant
Carex riparia, known as greater pond sedge, is a tall UK native sedge of ditches, ponds and riverbanks. It has broad, strap-like, blue-green to bright green leaves, and in May and June carries stout, dark brown flower spikes.
Greater pond sedge at a glance
| Botanical name | Carex riparia |
|---|---|
| Common name | Greater pond sedge |
| Plant type | Tall sedge with creeping roots; dies back in winter |
| Height and spread | About 1–1.5 m tall, 1–1.5 m wide |
| Flowers | Dark brown, stout upright spikes, May and June |
| Position | Full sun or part shade |
| Soil | Fertile, wet, poorly drained clay or loam; any pH |
| Pond depth | 5–15 cm of water |
| Hardiness | RHS H5 – hardy in a cold winter (-15 to -10°C) |
| Native to | UK (native) |
Is greater pond sedge suitable for a small pond?
Only in a basket. The RHS calls it a vigorously spreading plant, and it also spreads by wind-blown seed. It is best on the margins of larger ponds; in small ponds, grow it in a basket.
Where to plant it
- The margins of large wildlife ponds, 5–15 cm deep
- Heavy, wet clay beside ponds and ditches
How to plant and care for it
Plant from spring to late summer. It is generally free of diseases but may be attacked by aphids.
Which size should I buy?
Bare-root plants (7 cm, 9 cm, 1 litre and 3 litre) arrive without a pot or compost and are the most economical way to plant a group. Potted plants (9 cm, 1 litre and 3 litre) arrive growing in our peat-free compost and give a faster display. Packs of 3 come in 7 cm, 9 cm, 1 litre and 3 litre bare-root sizes and cost less per plant. The 2x Pot & Compost option is two plants supplied with pots and compost.
