Wales has over 300 gardens opening through the National Garden Scheme in 2026 alone, and that number keeps growing each year. If you’ve ever wandered around someone else’s garden on an open day and thought “I could do this,” you’re probably right. But there’s a fair bit of planning between that thought and actually welcoming people through your gate.
From prepping your borders and sorting out insurance to figuring out what to do when it inevitably rains, here’s what’s actually involved in opening your garden to the public.
How the National Garden Scheme Works in Wales
The NGS is the main route for private garden owners to open their gates for charity. You register your garden, pick your opening dates, and the scheme handles the listing and publicity. Admission prices are set low (the average across the scheme is just over £6 per adult), and most of the money goes to nursing and health charities like Macmillan and Marie Curie.
In Wales, the scheme is split into county groups covering areas like Powys, Gwent, Glamorgan and Gwynedd. Each group has a county organiser who’ll visit your garden, offer feedback and help you get listed. You don’t need a grand estate. Plenty of the gardens on the scheme are modest, well-loved plots that just happen to have something interesting going on.
Get Your Garden Ready Without Overdoing It
The temptation is to try and make everything perfect, but visitors aren’t expecting Chelsea. They want to see a real, well-kept garden with personality. Focus on tidying edges, weeding paths, and making sure your best features are looking their best on the day.
A few things that make a difference: clear any trip hazards on paths and steps, check that gates open and close properly, and make sure there’s somewhere obvious for visitors to enter and leave. If you’ve got a pond or any water features, think about whether they need a barrier or at least a sign.
Label your plants if you can. Visitors will ask about them, and you won’t always be free to answer. A few handwritten labels on sticks will save you repeating yourself fifty times.
Plan Around Welsh Weather
Anyone who’s hosted an outdoor event in Wales knows the weather will do what it wants. June and July tend to be the driest months, but “dry” is relative. A warm Saturday morning can turn into a soggy afternoon without much warning, especially in the valleys or along the coast.
Don’t rely on a clear forecast. Set up a quality garden gazebo over your refreshment area so tea and cake can carry on whatever the sky decides. It’ll also give visitors somewhere to shelter without trampling your beds. If you’ve got space, a second covered area near the entrance works well for collecting admission money and handing out any printed guides.
Pick your dates carefully too. Bank holiday weekends pull bigger crowds, but they’re also more competitive. A quieter weekend in late June or early July will often give you better weather odds and a more relaxed atmosphere.
Signage, Parking and Footfall
Even a small open garden can attract 100 or more visitors across a day. That’s a lot of feet on your lawn. Think about the route you want people to follow and mark it clearly. Arrows on small stakes, a simple printed map at the entrance, or rope along the edges of beds you don’t want people walking through will all help.
Parking catches a lot of first-time hosts off guard. If your lane or road is narrow, speak to a neighbour about using a field or hard-standing area. The NGS will list parking details on your garden’s page, so get this sorted early. A couple of hand-painted signs on the approach road will save confusion on the day.
Insurance and Permissions
The NGS provides public liability insurance for registered gardens on their official opening days, which takes one big worry off the list. If you’re opening independently for a local charity or church fundraiser, you’ll need to arrange your own cover. Your home insurance probably won’t be enough, so check the small print and speak to your provider beforehand.
You won’t normally need planning permission for a temporary garden opening, but it’s worth letting your local council know if you’re expecting significant traffic. In rural parts of Wales, road access can be tight, and a quick conversation with the highways team will flag any issues before the day.
Tea, Cake and the Refreshment Setup
Refreshments are half the draw. Most NGS visitors expect tea, coffee and homemade cake, and a well-run refreshment table can add significantly to the money raised for charity. Keep the menu simple: a few varieties of cake, a pot of tea, instant coffee for speed, and some squash for children.
You’ll need a clear area away from the main planting where people can sit, eat and chat. A couple of folding tables and chairs under cover will do the job. If you’re baking yourself, get friends involved. Three or four cakes won’t be enough for a busy day.
A Rewarding Day If You Plan Ahead
Opening your garden takes effort, but the payoff is real. You’ll raise money for good causes, meet fellow gardeners, and get honest feedback on what you’ve built. Most hosts say the best part is watching complete strangers enjoy something they’ve poured years of work into.
Start small if you’re unsure. Open for a single afternoon, keep the setup simple, and see how it goes. You can always do more next year.