Gardening
How to Start Composting in Ireland, A Beginner’s Guide for All Seasons
Learn how to start composting in Ireland with this beginner-friendly guide.
Our Short Answer:
Site your bin/heap on bare, well-drained ground in light shade. Layer browns (dry carbon) and greens (wet nitrogen) to ~50:50 by volume (or 2 parts browns : 1 part greens if slimy), keep it like a wrung-out sponge, turn every 2–3 weeks, and cover from heavy rain. Expect compost in 3–9 months.
Our Beginners Guide to Start Composting:
Looking to cut down on waste or give your vegetable garden a natural boost? Composting is one of the easiest and most sustainable things you can do at home. Whether you’re in the city or the countryside, this guide will show you how to start composting in Ireland, even in our cool, damp climate.
Why Compost? (And Why It’s Perfect for Irish Gardeners)
Composting turns your everyday kitchen and garden scraps into rich, crumbly compost, a natural fertiliser packed with nutrients. It’s especially helpful in Ireland, where soils often benefit from organic matter.
Benefits:
- Improves soil and boosts plant health
- Reduces household waste and landfill use
- Works year-round, even in small gardens or patios
Is Composting Suitable for Irish Weather?
Yes, in fact, Ireland’s moist, mild conditions are great for composting!
- Regular rain keeps compost moist.
- Cool temperatures allow slow but steady breakdown.
- A simple cover keeps your heap from getting waterlogged.
Tip: Use a compost duvet, bin lid, or even an old carpet to trap warmth and protect from downpours.
What Can You Compost?
Split compost materials into greens (nitrogen-rich) and browns (carbon-rich). A balanced mix is key to a healthy pile. 
Greens (Wet / Nitrogen):
- Fruit & vegetable peelings
- Grass clippings
- Coffee grounds & tea bags (plastic-free)
- Fresh plant trimmings
Browns (Dry / Carbon):
- Shredded cardboard and newspaper
- Autumn leaves
- Straw or hay
- Egg cartons and toilet roll tubes
Aim for a 50:50 ratio of greens to browns for best results.
What NOT to Compost
Avoid these common composting mistakes:
- Cooked food
- Meat, dairy, or bones
- Glossy magazines or plastic-coated paper
- Weeds with seeds or diseased plants
These can attract pests or slow down decomposition.
Choosing the Right Composting System
There’s a setup for every space and lifestyle:
| Type | Best for | Pros | Considerations |
| Open heap/bay | Large/rural | Cheap, scalable | Needs space; wildlife access |
| Plastic bin | Small/urban | Tidy, compact | Harder to turn; watch moisture |
| Tumbler | Quick results | Easy aeration | Smaller capacity; regular feeding |
| Wormery | Apartments/patios | High-quality vermicompost + liquid feed | Keep 10–25 °C; avoid big citrus/onion loads |
| Bokashi + bin | Cooked food | Ferments scraps; low odour | Needs a finishing bin/heap |
Shop compost bins and products at Arboretum
How to Start Composting: Step-by-Step
- Choose your spot: Semi-shaded and well-drained.
- Add in layers: Alternate greens and browns.
- Turn regularly: Every 2–3 weeks with a fork or aerator.
- Monitor moisture: Should feel like a wrung-out sponge.
- Cover it up: Keep heat in and excess water out.
Compost usually matures in 3–9 months, depending on materials and climate. If you would like compost to speed up – read our helpful guide:
How to Tell When Your Compost Is Ready
Good compost should be:
- Dark brown and crumbly
- Earthy-smelling (not sour or rotten)
- Free of visible food scraps
Use it to:
- Enrich raised beds and borders
- Top-dress lawns and containers
- Mulch around shrubs and veg
Troubleshooting Your Compost
| Problem | Likely cause | Fix |
| Wet/slimy/smelly | Too many greens / rain | Add browns, turn, improve cover |
| Dry/slow | Too many browns / wind | Add greens or water; cover better |
| Ammonia smell | Excess grass | Add shredded cardboard; mix |
| Fruit flies | Exposed scraps | Bury greens; add a brown “cap” |
| Rodents | Food access | Avoid cooked food; rodent-proof bin; wire mesh base |
| Not heating | Small pile / low Nitrogen / dry | Increase volume; add greens; water; turn |
Composting in Every Season
- Spring: Great time to start fresh compost. Add lawn clippings and kitchen scraps.
- Summer: Compost heats up quickly, it is necessary to turn regularly.
- Autumn: Ideal for adding fallen leaves and garden cutbacks.
- Winter: Compost slows down but still works. Insulate your bin and keep adding small amounts.
Ready to Start? Compost with Arboretum
From compact bins to compost turners, we’ve got everything you need to succeed, plus expert advice to guide you along the way. Want to learn how to speed up composting? Check out our guide for our best tips How to Speed Up Composting.
Shop composting products online now.
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