How to Make Compost at Home

Composting at home is one of the simplest, most rewarding ways to boost your UK garden’s health while cutting household waste. It turns kitchen scraps and garden trimmings into 'black gold' for your…

Composting at home is one of the simplest, most rewarding ways to boost your UK garden’s health while cutting household waste. It turns kitchen scraps and garden trimmings into 'black gold' for your soil, saving you money on fertiliser and reducing landfill burden – a win for your garden and the planet.

What to Compost in Your UK Garden

Focus on balancing nitrogen-rich 'greens' (wet, fresh) and carbon-rich 'browns' (dry, woody) for healthy decomposition. Avoid meat, dairy, or oily foods, as they attract pests and cause anaerobic smells.

• Greens (nitrogen):
• Fresh grass clippings (after mowing, not damp)
• Vegetable peelings, coffee grounds, tea bags
• Crushed eggshells (deter pests)
• Spring/summer plant trimmings
• Browns (carbon):
• Dry autumn leaves (shred to speed up)
• Straw, shredded cardboard, or newspaper (ink-free)
• Wood chips (from untreated timber)
• Pruned woody stems (chopped small)

Building Your Compost Pile Right

Aim for a rough 2:1 ratio of browns to greens by volume – think two buckets of dried leaves for every one of kitchen scraps. Layer materials to prevent compaction and encourage airflow.

• Start with a base: 10cm of coarse browns (like twigs) for drainage.
• Layer alternately: Add 5–7cm of greens, then 10–15cm of browns.
• Moisten as you go: Sprinkle water until it feels like a damp sponge (not soggy).
• Keep it compact: A pile 1m x 1m x 1m (3ft x 3ft x 3ft) retains heat best in UK weather.

Maintaining Your Compost Heap

UK weather can make composting tricky – turn it regularly to avoid becoming waterlogged in winter or drying out in summer.

• Turn every 2–3 weeks: Use a garden fork to mix the pile, bringing outer material inside. This aerates it and speeds up decomposition.
• Check moisture: If it’s soggy, add more browns; if dry, sprinkle water.
• Avoid common pitfalls:
• Never add pet waste or diseased plants (risk of pathogens).
• Keep meat/dairy out – they cause foul odours and attract flies.
• In winter, cover the pile with a tarp to retain heat.

When Your Compost is Ready

It’s ready when it looks like dark, crumbly soil with an earthy smell – no visible scraps. This takes 3–12 months, depending on your method.

• Hot composting (using the Berkeley method):
• Requires a large pile (1m³+) and turning every 2 days.
• Produces compost in 18 days (ideal for serious gardeners).
• Cold composting (simplest method):
• Add scraps as they happen, turn once a year.
• Takes 6–12 months – perfect for beginners or small gardens.
• Test readiness: Sift out large chunks; if the rest is dark and smells sweet, it’s ready to use.

Related Articles

More →

Growing Guide

How to grow ornamental grasses in pots

5 August 2026

Grow ornamental grasses successfully in containers with advice on pot size, compost, watering, feeding, winter care and long-term maintenance.

Growing Guide

How to plan a perennial border

5 August 2026

Plan a balanced perennial border with practical guidance on position, colour, height, spacing, flowering succession and year-round structure.

Growing Guide

How to take hardwood cuttings

29 July 2026

Take hardwood cuttings from suitable dormant shrubs and climbers with this step-by-step guide to timing, preparation, rooting and aftercare.