Assess your plot before you lift a spade

Every vegetable patch begins with a good look at what you already have. Spend a sunny day on the plot and note where the light falls. Most vegetables need at least six hours of direct sun, so save the brightest spot for tomatoes, courgettes, beans and roots. Shady corners can still earn their keep with lettuce, rocket, chard and parsley. Check how water behaves after rain: if puddles linger, you may be on heavy clay, which needs organic matter and perhaps raised beds. Sandy soil drains fast and hungry, so it will need extra compost and regular watering. Look at access too — a wheelbarrow-width path to the compost heap and water butt will save your back later.

If you are taking on an overgrown allotment, do not try to clear the whole thing in one weekend. Cover the far end with cardboard and a thick mulch, then work the rest in manageable strips. A patch you can keep on top of is far better than a perfectly dug plot that defeats you by June.

Clear weeds thoroughly — roots and all

Weeds are the first real test of a new vegetable patch. Annual weeds such as chickweed and fat hen are easy: hoe them off on a dry day or pull them before they set seed. Perennial weeds are the stubborn ones. Couch grass, bindweed, ground elder and docks will regrow from tiny root fragments, so rushing this job costs you months later.

• Dig or fork over the ground in small sections, removing every piece of root you can see. Shake soil back into the bed and bin or burn the roots — do not compost them.
• For deep-rooted bindweed, repeated pulling weakens the plant. You can also smother it with thick cardboard weighted down with compost, then plant through the cardboard.
• Avoid rotavating a weedy plot. It chops roots into dozens of new plants and buries weed seeds ready to sprout.
• Cover cleared ground with black polythene, weed membrane or a thick mulch until you are ready to sow. Bare soil grows weeds faster than you can pull them.

If the plot is very rough, consider a no-dig approach: lay cardboard over the weeds, top it with 10–15cm of well-rotted compost, and plant straight into that. It suits allotments, saves digging, and keeps weed seeds buried.

Feed the soil, and the soil will feed you

British soils range from sticky clay to hungry sand, but almost all benefit from organic matter. It improves drainage on clay, holds water on sand, feeds soil life and releases nutrients slowly. Well-rotted horse or cow manure, garden compost, leafmould and spent mushroom compost are all excellent. Mushroom compost is alkaline, so use it sparingly around acid-loving crops such as blueberries.

• Spread a 5–10cm layer over the surface in autumn or early spring. Worms will pull it down, or you can fork it gently into the top 15–20cm.
• For no-dig beds, simply lay it on top as a mulch. Plant into the mulch and let the soil life do the mixing.
• Test your soil pH with a simple kit. Most vegetables prefer 6.0–7.0. Add lime for acid soil before brassicas, but never at the same time as manure.
• Start a compost bin nearby. A mix of green waste, brown cardboard, kitchen scraps and a little soil will give you free soil food every year.

Do not walk on wet soil — it destroys the structure you are trying to build. Use boards or paths to spread your weight.

Plan beds that suit your space and your back

Good beds make everything easier. Keep them no wider than 1.2 metres so you can reach the middle from either side without stepping on the soil. Paths of 30–45cm are enough for walking; make them wider if you use a wheelbarrow or have a mobility aid. Raised beds are ideal on clay, contaminated ground or sloping plots, and they warm up faster in spring. A height of 15–20cm suits most vegetables; 60cm or more helps if bending is difficult.

• Orientate beds north to south where possible, so crops do not shade each other as the sun moves.
• Group crops by family for rotation: brassicas, roots, potatoes, legumes and alliums. This helps prevent pests and diseases building up.
• Include a permanent bed for rhubarb, asparagus or herbs, which stay put for years.
• Leave space for a water butt, compost heap and a small seat. Allotment gardening is a marathon, not a sprint.

Sow your first seeds with confidence

Start small. A few well-tended beds will outproduce a large neglected plot. Reliable first crops include potatoes, courgettes, runner beans, broad beans, lettuce, radish, beetroot and chard. In the UK, begin sowing hardy crops from March, but watch the forecast — a late frost can wipe out tender seedlings. Warm the soil with black polythene for a fortnight before sowing roots and salads.

• Sow radish and lettuce little and often, every two or three weeks, for a steady supply rather than a glut.
• Plant onion sets and shallots in March or April, pushing them just into the surface.
• Harden off greenhouse-raised plants over a week before planting out after the last frost, usually late May in most areas.
• Label everything. It is astonishing how quickly you forget which row is which.

Keep on top of watering, weeding and mulching

Once plants are growing, little and often is the secret. Water deeply rather than lightly, aiming for the roots, and do it in the morning or evening to reduce evaporation. Hoe weeds while they are tiny — a sharp hoe on a dry day kills most annuals in minutes. Mulch around hungry crops with compost or grass clippings to lock in moisture and suppress weeds. Check plants weekly for slugs, aphids and caterpillar eggs, and deal with problems early. The first year is about learning your plot: which corners dry out, where the wind bites, and what grows best. Keep notes, enjoy the small harvests, and your vegetable patch will improve with every season.