17. May 2020 by Isabelle Van Groeningen

Popping poppies

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Mohnblumen - meconopisis cambrica 'Frances Perry' © Isabelle van Groeningen
Poppies – meconopisis cambrica ‘Frances Perry’

Flagge Deutschland für deutsche Übersetzung Auf Deutsch lesen – This is such a difficult time of year for me! Although I quite often sit in bed on Friday mornings, wondering what to write about, it is rarely so hard as it is right now. In the depth of winter it may be difficult to find a suitable subject, but right now it is hard to decide what not to write about. It is all so beautiful and exciting!

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10. May 2020 by Isabelle Van Groeningen

Mind travels

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Flagge Deutschland für deutsche Übersetzung – Zur deutschen Version – Even though movement is restricted at the moment, nothing prohibits our minds from roaming around the world. Walking through my own garden, observing plants emerging in spring, coming into flower or turning into a glowing autumn display, often evokes memories associated with this plant.  Certain plants always remind me of particular gardens I have visited in the past. As the plants are seasonal, the mental visits to these gardens are defined by seasons. Continue Reading →

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03. May 2020 by Isabelle Van Groeningen

Green is the colour of spring

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Beech in spring © Isabelle van Groeningen

Beech in spring time

Flagge Deutschland für deutsche Übersetzung Zur deutschen Version – The awakening of nature has always brought great joy to my life. Even though I have come to love autumn with its glorious colours, it is this time of year that excites me most. The first enchanting rush of small, delicate bulbs and early, mostly shade-loving perennials is over.  It is now replaced by the exhilarating emerging of trees and shrubs. Some are early risers, others take their time. Continue Reading →

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25. April 2020 by Isabelle Van Groeningen


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Vole or mole

Voles or moles?

Flagge Deutschland für deutsche Übersetzung Zur deutschen Version – Few gardeners will ever qualify to become a Buddhist. On numerous occasions I have had murderous thoughts. I have been annoyed by slugs eating treasured plants, even devastating entire lettuce crops. Vineweevil grubs that sneakily eat away at the fleshy roots of my favourite auricula primulas frustrate me. But most dispiriting of all are destructive voles: Like the damage inflicted by vineweevil grubs, one does not see the destruction caused until it is too late. The disappointment is huge when the eagerly awaited springtime bulb display does not appear, or you find that as the snow finally melts, the roots of the ornamental grasses haven been shaven away. I have seen long-established fruit bushes keel over as the roots were missing, and mature apple trees die.

Voles threaten the most beautiful garden © Isabelle van Groeningen

Voles threaten the most beautiful garden

Voles or Moles?

It can be difficult to tell the difference between these two creatures that cause havoc in beds and lawns. Both dig underground tunnels and create little soil heaps which make paths uneven and lawns unsightly. Moles are comparatively harmless as they are meat eaters.  They feast on earthworms and other soil-dwelling creatures. Voles on the other hand are vegetarian. They love tasty, fleshy roots such as carrots and tulips but also have a soft spot for roses and many herbaceous perennials. Under German law moles are protected and it is forbidden to kill or disturb them, whereas voles may be eradicated.

How do you tell the difference between moles and voles?



It rare you see the creatures, and when you do, they tend to be so fast that you don’t have time to notice much details. Moles are larger, dark grey-black in colour and have rather sweet-looking pink paddle-like paws they use for tunneling, whereas voles look much more like a mouse.

It is easier to tell the difference by looking at the heaps: that of a mole tends to be higher and conical, whereas a vole’s is flatter, more spread out and often contain plant debris.

Vole’s tunnels are narrower, more upright, devoid of roots, those dug by the paddling feet of a mole tend to be wider than high. Put a piece of carrot in one of the tunnels: if it gets eaten you’ll know your guest is vegetarian.

How to deal with them

If they are in your garden, they often are an eternal problem – one couple can produce as many as 100 offspring in a year, as the babies become sexually active one month after birth… The moral of the story: start your eradication campaign as soon as possible.  I used to have cats with a good hunting instinct, that kept sharp-teethed pests like rabbits and voles at bay. As the cats got older, I noticed the damage gradually increased. I can imagine that certain breeds of dog may also be effective at catching the little critters.

You can set traps, baited with tasty carrots, or I find a cooked potato also works. There are live traps, which are more humane, but leave you with the problem of where to dispose of the unwanted garden guest. You cannot throw him (or her) across the fence – they will come back and it would severely damage neighbourly relations. We use a guillotine-like contraption which is inserted into the tunnels. It is quite effective, and is fast and painless. Ordinary mousetraps also work.

There are various noise contraptions, mostly battery-operated, that you insert into the ground that are meant to disperse them. They produce a high-pitch or a buzzing sound which apparently they do not like. I find these extremely irritating, and the animals do not really seem all that bothered by them. A robot mower can also work, as it is constantly on the move and causes vibrations in the soil. However this may be more effective at chasing moles out of your lawn, than voles in the middle of the border. There is also poison, though this should really be a last resort. I have heard of somebody regularly fishing drowned voles out of her water feature. Despite an animal-friendly ramp, that helps hedgehogs, mice and other garden visitors to escape the water, voles never seem to manage and drown. I have also heard a client praising small solar-powered garden lamps, that provide faint light at night, which assists owls in their search for food.

Whatever you use, it is best to wear gloves and avoid contact with trap and bait: they have a very good sense of smell!

Which plants survive?

Over the years I have been experimenting with various plants in a garden that is particularly infested with voles. Looking at the original plan of the herbaceous border, very few plants survive. Catmints, ladies mantle and Geranium ‘Rozanne’ are still there. The roses are trying hard. Phlox is also still there, but lovely asters like A. frikartii ‘Mönch’ has long gone. I keep experimenting. As a new plant goes in, an old one gets eaten away. Although I tend to see the disappearance of a plant as a positive thing, as it makes space for something new, in this case, my patience is wearing very thin.

Voles don't like Nepeta 'Walkers Low' © Isabelle van Groeningen

Nepeta ‘Walkers Low’

Rethink your approach to planting in vole-infested gardens

Monarda 'Ou Charm' © Isabelle van Groeningen

Monarda ‘Ou Charm’

I have learnt that the plants which under normal circumstances could become troublesome are ideal in these gardens. Self-seeders and runners stand the greatest chance of survival.  There are numerous opportunists that like to self-seed in vacant spaces. Foxgloves, Welsh Poppies, Astrantia, Thalictrum, Aquilegias and Hollyhocks will germinate in gaps and fill the spaces. With runners I mean plants with invasive rootsystems. These have a better chance of survival. Several asters will oblige, as will Leucanthemella serotina and Monarda.

Orange & gelbe Meconopsis cambrica © Isabelle van Groeningen

Orange & yellow Meconopsis cambrica

Plants worth trying:

Not this list is not definitive, and I do not guarantee they will never touch them. After all, us humans do not all share the same taste either!

(*means the plant will tolerate a shadier position)


  • Aconitum iS.*
  • Alcea iS.
  • Alchemilla mollis
  • Aster ‘Le Vaterival’, A. laevis,  A. pringlei ‘Monte Cassino’, A. ageratoides *
  • Astrantia iS.*
  • Baptisia australis
  • Centaurea dealbata
  • Delphinium iS.
  • Digitalis purpurea*
  • Doronicum ‘Little Leo’*
  • Epimedium iS.*
  • Eupatorium atropurpureum
  • Euphorbia iS.
  • Geranium iS.*
  • Hemerocallis iS.
  • Hosta iS.*
  • Iberis sempervirens
  • Iris iS.
  • Ligularia iS.
  • Meconopsis cambrica*
  • Monarda iS.
  • Nepeta ‘Walkers Low`
  • Omphalodes verna*
  • Phlox iS.
  • Rudbeckia iS.
  • Sedum iS.
  • Thalictrum iS.
  • Veronicastrum virginicum
  • Vinca minor*


  • Anemone nemorosa*
  • Convallaria majalis*
  • Eranthis hyemalis *
  • Narcissus iS.


  • Amelanchier lamarckii
  • Euonymus iS.
  • Hydrangea iS.
  • Rhododendron iS.
  • Viburnum iS.

What about roses in vole-infested gardens?

Rosa spinosissima © Isabelle van Groeningen

Rosa spinosissima

Roses are difficult as they seem to taste particularly good. We have observed voles jump into the wire cage used to protect the roots of a freshly planted rose.

vorne rechts Rosa 'Chrales de Mills' © Isabelle van Groeningen

‘Chrales de Mills’

The same rule seems to apply to roses as for perennials, those that sucker stand a better chance.

Unbekannte historische Rosen © Isabelle van Groeningen

Old rose – sadly nameless

We have an lovely old (sadly nameless) variety, once flowering and strongly scented, that thrives despite the fully hollowed out soil. The voles, rather than killing it, keep it in check and stop it from spreading all over the garden.  I can imagine that the beautiful historic rose  ‘Charles de Mills’ which I adored until I discovered what a pest it had become as its roots spread all over the border, would be perfect. The sweet little spinosissima varieties and the beautiful repeat flowering ‘Stanwell Perpetual’ should also be worth a try.

Rosa Stanwell Perpetual © Isabelle van Groeningen

Rosa Stanwell Perpetual


I can understand people’s despair at such vicious attacks on their beloved plants. Feeling helpless as they watch their hard work being destroyed. But do not despair. Do not give up. Take stock of what works and develop this, rather than trying to achieve the impossible. Good Luck!

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19. April 2020 by Isabelle Van Groeningen

Holiday at home

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Under palm trees... Mediterraner Urlaub © Isabelle van Groeningen

Under palm trees..

Flagge Deutschland für deutsche Übersetzung Zur deutschen Version – Many have already decided that 2020 will be the year for holidaying at home. Why not? You don’t have to worry about a stressful journey, whether the bed will be as comfortable as your own, if the food will be nice. The biggest concern for many is who will look after the plants? Continue Reading →

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10. April 2020 by Isabelle Van Groeningen


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Narcissus 'Thalia' + Brunnera macrophylla 'Jack Frost'© Isabelle van Groeningen

Narcissus ‘Thalia’

Flagge Deutschland für deutsche Übersetzung zur deutschen Version – Easter is as much symbolised by bunnies, chicks and eggs, as it is by daffodils. Their cheerful yellow trumpets herald the arrival of spring. Although they are not the first spring bulb to flower by far, it is together with the Crown Imperials the first large flower of the season to carpet our gardens. Continue Reading →

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05. April 2020 by Isabelle Van Groeningen

Growing Vegetables in raised beds

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7. Palmkohl vor Tauben schützen © Isabelle van Groeningen

Protecting palm cabbage from pigeons in raised beds

Flagge Deutschland für deutsche Übersetzung – zur deutschen Version – At long last the temperatures are improving, The cold nights these past few weeks have caused plant growth to come to a standstill. Plants ventured so far, and then stopped. Now that the night temperatures are increasing, the garden will explode at a phenomenal pace. Continue Reading →

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