1. Position and mark out your border
Decide where in the garden you want your border and mark out its shape. Consider where the border will be viewed from and any eyesores you want to hide.
For a curved edge, use a garden hose; for a straight edge, use a string line. If creating a border in an existing lawn, see our step-by-step guide to creating a lawn edge for information on marking out, cutting edges and lifting turf. Make sure the shape suits your garden and is large enough to accommodate the type and amount of plants you wish to grow.
2. Begin preparing the ground
Whether you are reworking an existing border or have cleared a previously unplanted area of your garden, it’s important to prepare the ground thoroughly ahead of planting. Soil that isn’t compacted needn’t be dug over. See our guide to soil cultivation for more information. Remove any old roots, large stones and debris that you unearth and work the soil until it has a crumbly texture.
3. Improve your soil
With a spade, pitch-fork or shovel, add organic matter, such as well-rotted garden compost or farmyard manure, to the surface of the soil. Add a layer at least 5cm (2in) deep, but aim for 10cm (4in) if you have sandy or heavy clay soil. Use your fork to turn it into the soil and mix evenly.
4. Prepare soil for planting
Using a rake, remove any remaining stones, roots or pieces of debris that have worked their way up to the surface. Then rake over to level off any mounds and hollows.
5. Position your plants
Set your plants (still in their pots) on the soil and adjust their positions until you’re happy with them. Pay attention to their eventual size, flower and foliage colour, and season of interest to achieve your desired effect.
6. Water your plants
Make sure the plants are well-watered before you put them in the ground. If the pots feel light, or if you have bareroot plants, soak the root systems in a bucket of water for at least 10 minutes.
7. Begin planting
Starting at the back of the border (or centre if it’s an island bed), and taking each plant in turn, dig a hole a little wider than the plant’s pot, or its root system if bare-rooted. If the soil has been well-prepared, it shouldn’t be necessary to dig the hole any deeper than the root system. If the soil is dry, add some water to the bottom of the planting hole.
Remove each plant from its pot and place it in the hole. Backfill with soil and firm the plant in, using your hands to push down the soil around small herbaceous perennials, and your heel to firm down soil around larger plants. For more details, see our guides to planting perennials and shrubs.
8. Water well after planting
Water thoroughly, adding enough water to ensure it soaks down to the root system. Use a watering can with a rose or a hose on a fine spray, watering slowly and steadily to settle and dampen the soil around the roots, rather than a strong jet of water that will blast soil away.