Structure Without Hard Landscaping: Designing with Grasses

When it comes to adding structure to a garden, most people think of paving, walls, or built elements. But in naturalistic planting, structure can come entirely from plants โ€” especially ornamental grasses.

Why grasses?

Grasses bring verticality, movement, and rhythm to a border without overpowering it. They respond to wind and light, soften boundaries, and evolve beautifully across the seasons. For small urban gardens, they offer a low-intervention way to introduce structure without relying on hard landscaping.

Two of my favourites for this are:

Calamagrostis ร— acutiflora โ€˜Karl Foersterโ€™

An upright, clump-forming grass that stands tall even through winter. It adds clear vertical lines to any planting scheme and pairs beautifully with flowering perennials. A strong backbone plant for borders that need a bit more height and presence.

Miscanthus sinensis โ€˜Undineโ€™

A graceful, arching grass with fine blades and soft plumes. It brings gentle movement and textural contrast โ€” ideal for adding softness to more formal or tight spaces.

How to use them

  • Create rhythm by repeating grasses at intervals through a border.

  • Pair them with perennials like Geum, Salvia, or Allium for contrast in form and colour.

  • Use in small groups to catch light and define edges or transitions.

Final tip: donโ€™t overplant

Grasses need breathing space. Let them stand out against simpler foliage or open ground โ€” theyโ€™ll do more work that way.

๐ŸŒฟ Ready to rework a tired border?

I specialise in regenerating existing gardens, using naturalistic planting to bring structure, softness, and seasonal flow โ€” without the need for hard landscaping.

Get in touch to start a conversation about your space.

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My Favourite London Gardens

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Naturalistic Planting with Purpose: A Guide to Layering