THE MODERN MINT BLOG

Jul03

Plants for Clay Soil

There are lots of plants for clay soil. Difficult as it is to work with, the opportunities to tend a fabulous garden of well-fed, strong and voluptuous plants are second to none (just try not to despair, at the end of the day, when trying to remove the clay from your boots!)

Oak House 26
Roses are the absolute first choice for clay.

We made a beautiful rose garden for a client in Hampshire. It was on blue clay and halfway down a gentle slope, so got plenty of water. Each bed had a single variety of rose in, 15 plants per bed, and it looked fabulous as you peered through the hornbeam arch (we chose hornbeam, though not as nice a hedge as beech, because it could cope with the site.)

The client had wanted lavender and box to edge the roses and fill in any gaps – but there is no way they would have survived. Ilex crenata may have coped better, but we doubted its longevity (the site really was wet at times.)

So instead we built a small seating area, added a sculpture and made sure the grass sward was beautiful and cut consistently.

Simple and striking seemed the way forward in this case.

Val Bourne gives a rundown of some fantastic plants in her book The Natural Gardener: The Way We All Want to Garden: Preserving Nature’s Jigsaw. She said…

“Roses (even those old-fashioned beauties), viburnums, hostas, phlox, monardas and asters will love your garden.”

You won’t go far wrong if you just planted these!

The hostas may get eaten by slugs, so if you don’t want the hassle either steer clear of growing them, use copper rings around the plants, or add gravel and grit across the whole bed. Decide on your maintenance capabilities really, and how much time you want to spend on picking off and squashing slugs. It wouldn’t be our first choice of jobs to do…

If you do want to buy hostas then you can see what is on offer here – Jersey Plants Direct – they also sell a Viburnum opulus at a fair price if you type that into the search. Viburnums are solid plants (see the V. carlesii in the picture below) and they provide a cluster of flowers at the start of the season and then berries at the end.

Do plant them!

viburnum carlesii


Cornus is another fine choice for soils that are damp – normally planted for winter stem colour, we also think they do a good job during the summer when in leaf – Cornus alba ‘elegantissima’ has a white margin on the green leaf, which provides a lovely calm backdrop for bigger summer flowers.

Astrantia is a favourite of ours, if you want something perennial. Let some aquilegia seed around it, maybe some campanula and forget-me-not, and you have a soft (possibly too soft? If so, add euphorbia palustris!) late spring scene of delightful flowers.

We always found, when growing dahlias, that lots of water helped. So though you will lose the tubers over winter in clay soil, putting them in for summer will give you a beautiful display. Crocus are currently doing a special offer on dahlias in there ‘bulbs’ section – so don’t miss it, go now!

That should get you started. Just remember to suit the plant to the place – that is what modern garden design is about, and it means the plant is happy and you won’t have as much work to do… unless (and it’s a fine problem to have) they grow too well…

All the plants we’ve talked about can be bought and delivered from Crocus or Jersey Plants Direct – Jersey Plants Direct offer a free delivery no matter the size of the order. Which we think is more than reasonable….

Or for decent books to use as a guide, try Beth Chatto…

Or this one on plants for problem places…

Or this one…

Apr16

EBTS Boxwood Growers Forum

Through the European Boxwood and Topiary Society I worked with Chris Poole and Sue Mesher, members of the EBTS board, and we set up a Boxwood Growers Forum. This was to discuss how to make sure this wonderful topiary plant stays in the public conscioussness – we know many growers, suppliers and distributors have stopped selling it as the cost of replacing boxwood that has blight, or is nibbled by the boxwood caterpillar, makes it unviable to offer to clients and gardeners. But Boxwood is a phoenix plant, and there are ways to deal with the problems associated with Buxus. …

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Apr15

Modern Topiarist @ Garden Masterclass Poland

My video on Modern Topiary for Garden Masterclass has been translated into Polish, for the keen gardeners (and happy pruners!) of Garedn Masterclass in Poland. Tickets for the first showing and q and a were available here. But it will become available on the Garden Masterclass Poland website at some point in the near future – so if you are a keen clipper and want to know more, but speak Polish and not English, then I suggest you visit the website and get watching. (Of course, if you don’t speak English, you may not be able to read this…. hmmm… …

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Apr15

Topiary Hotline

The European Boxwood & Topiary Society are to run a Topiary Hotline for keen gardeners and people who love to clip. Date is tomorrow, April 16th 2024, and you can get a ticket for the Zoom meeting here – Topiary Hotline. Run by Chris Poole and myself, we set this up as an antidote to the huge amount of questions we have to answer about topiary throughout the summer. The plus is that their is an excitement around topiary and pruning. The problem is we need to help people in a better way… … so we will be giving people …

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