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Grasses for heavy soils

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Our Range of ornamental grasses for heavy, clay-rich soils. These perennial herbs form graphic clumps, bearing feathery spikes in summer and often taking on beautiful colours in autumn. They are suitable for compact ground and retain their appeal in winter.

A reliable choice, Calamagrostis acutiflora ‘Karl Foerster’ offers a very upright habit, rigid culms and erect spikes from early summer. It tolerates compact, heavy, even moist soils well and remains decorative until late winter. Panicum, very robust, tolerate compact clay well once established. For cold areas waterlogged in winter, choose Molinia arundinacea ‘Transparent’ ; this grass displays tall, airy panicles above a well-behaved clump; it likes heavy soils that remain cool in summer. Also worth mentioning is Deschampsia cespitosa ‘Goldtau’  which forms fine, golden clouds; this variety is suited to clay and humus-bearing soils that are not too dry. Miscanthus (Maiden grass) meanwhile like deep, clay soil, but it must be properly drained.

For these grasses, while heavy clay soils are accepted, they should be loosened and decompacted at planting time; it is preferable that water does not stagnate near their stump in winter. All are very hardy. Hoe regularly around young plants to help them establish.
For further reading, consult our guide Planting ornamental grasses.

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Grasses for heavy soils
Grasses for heavy soils
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