03/04/2026
Some ground cover plants only need to be planted once. They spread, layer, drop their seed, and colonise every square centimetre of bare soil without any further intervention. The gardener who establishes these plants once never needs to w**d, mulch, or replant — the soil closes over by itself.
Sweet alyssum (Lobularia maritima): the champion of pavement crack seeding. Tiny honey-scented white flowers produce thousands of seeds that germinate in the smallest joint between paving slabs, the narrowest gap in a dry stone wall, the finest crack in a path edge. One packet in the first year creates a permanent fragrant carpet that attracts aphid-hunting hoverflies.
Forget-me-not (Myosotis): the sky-blue spring carpet reseeds with mechanical regularity. Biennial — forget-me-not drops its seed in June, the seedlings form autumn rosettes, and they flower the following spring. It colonises cool, partially shaded spots under roses, shrubs, and fruit trees.
Sweet violet (Viola odorata): colonises by two simultaneous mechanisms — creeping stolons that root every 10 cm, and seeds fired up to a metre by explosive seed capsules. In three years a single plant covers two square metres of heart-shaped leaf and scented flower. The flowers can be crystallised in sugar for use in baking and decorating.
Red dead-nettle (Lamium purpureum): a native ground cover that many gardeners remove as a w**d but is in practice a useful ally. It covers bare soil in winter when nothing else grows, its pink flowers feed the first bumblebees from February, and its seeds fall for automatic regeneration. It retreats naturally in summer when cultivated plants take over.
White clover (Trifolium repens): sown once in a lawn or path edge, it colonises progressively by creeping stolons and self-seeding. It fixes atmospheric nitrogen and feeds neighbouring plants for free. Its white flowers sustain bees and bumblebees from May to September. It stays green in summer drought when grass browns.
Bugle (Ajuga reptans): the purple-bronze rosettes spread by stolons at ground level and supplement by self-seeding. Spikes of blue-violet flowers in April and May feed early bumblebees. Bugle tolerates dense shade under trees and hedges where no lawn grass survives, and forms a dense permanent carpet within two seasons.
Ivy-leaved toadflax (Cymbalaria muralis): colonises walls, stone steps, and mortar joints with trailing stems bearing tiny lilac flowers. After flowering, the seed stalks actively curve toward dark crevices to deposit seeds directly into the shaded gaps where they will germinate. Naturalised on British stone walls for centuries — a characteristic plant of old garden walls across England.
Wild strawberry (Fragaria vesca): colonises by creeping runners and by the seed of fallen fruits. Birds eating the small red fruits distribute seeds across the garden — seedlings appear wherever a blackbird has left a dropping. In three years one plant creates a permanent edible border producing fruit from June to October.
Golden feverfew (Tanacetum parthenium 'Aureum'): reseeds into gravel, path edges, and paving gaps. Its low mounds of aromatic golden-green leaves tolerate light foot traffic and release a fresh apple scent when brushed. Each plant produces hundreds of minute seeds that germinate in any available space.
The only rule: never w**d out an expanding ground cover. What a gardener calls invasion, the garden calls soil protection. Covered soil is living soil — moist, fertile, and w**d-suppressing. A self-seeding ground cover is the best living mulch in any garden.
🌿 Plant once. The garden does the rest.
