Planning a new planting border that actually thrives

Start by reading the plot

Before choosing plants, stand in the spot at different times of day. Note where the sun falls in the morning and late afternoon, where shadows from the house, fences or trees land, and which corners stay damp after rain. A bed that looks sunny at midday in June can sit in shade for much of spring and autumn.

Wind matters too. Open gardens on the edge of fields catch drying winds that scorch soft leaves, while a walled town garden can be sheltered but short of light. Writing these notes down stops you buying plants that were never going to cope.

Know what your soil is doing

Across this part of Suffolk and Norfolk you can find very different ground within a few miles. Light sandy soil around Brandon and the Breck drains fast and dries out, which suits drought tolerant planting but starves hungry plants. Heavier ground elsewhere holds water and can sit wet through winter.

Dig a spade depth in a few places. If the soil runs through your fingers, you will need plenty of organic matter to hold moisture. If it smears and sticks, improving drainage and structure comes first. On newer properties it is also common to find builders' rubble just under the surface, which needs clearing before anything is planted.

• Sandy and fast draining: add organic matter, choose tough plants
• Heavy and slow draining: improve structure, avoid waterlogged roots
• Rubble or compacted fill: clear and replace before planting

Shape and size the bed properly

Most new borders are drawn too narrow. A strip a foot wide against a fence leaves room for one row of plants and looks thin. Giving the bed real depth lets you layer taller plants at the back with lower ones in front, which hides bare stems and gives the border a fuller look for more of the year.

Mark the outline with a hose or spray paint and live with it for a day or two. Curves should be generous and easy to mow around. A crisp edge between lawn and bed makes even a young border look deliberate.

Preparing the ground

Strip turf and perennial weeds completely, roots included. Anything left will come back through the new planting and compete for water. Then loosen the soil and work in organic matter across the whole bed, not just in each planting hole, so roots can spread out rather than circling in a pocket of good soil.

This is the part that gets rushed most often and it is the part that decides whether a border struggles or settles in.

Spacing and planting

Space plants for their size in a few years, not their size in the pot. The bed will look sparse for the first season, and that is correct. Planting in groups of the same plant reads better than one of everything dotted about. Water each plant in thoroughly and mulch the surface to lock in moisture and slow weeds.

Getting through the first year

Young plants need regular deep watering through their first dry spell, especially on light soils. A thorough soak once or twice a week beats a daily sprinkle that only wets the surface. Keep on top of weeds while the plants fill out, and top up mulch in autumn. By the second year a well prepared border needs far less help.

If you would rather have the bed prepared and planted for you, it can be folded into a wider landscaping job alongside turf, gravel or fencing, or kept up afterwards through regular garden maintenance visits.