The Genus Garden

Witty and acutely observant accounts of what is going on in the Genus Garden week by week - written by Joff Elphick our Head Gardener.

Petunias and pelargs - planning for next year

With summer planting in troughs and containers coming to an end I’m already looking forward to next year.  This involves propagating plants that will be required in relatively large numbers...
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Petunias and pelargs - planning for next year

With summer planting in troughs and containers coming to an end, I’m already looking forward to next year.  This involves propagating plants that will be required in relatively large numbers...
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Cabbage white caterpilars - a late appearance

The weather may have turned, our thick socks are on, and the waterproofs are constantly hanging up to dry, but it doesn’t mean that all signs of life have stopped...
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Oak galls - silk buttons and independence

I wrote a few weeks ago (see Mast years - time to fill the larder) about the exceptional year it’s been for fruit and nuts after the long dry hot...
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I'm expecting! Viviparity in the garden

It’s been confirmed.  I’m having babies next year.  Lots of them!  While recently cutting back some untidy looking plants I came across seed heads of Silybum marianum, the milk thistle. ...
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Mast Years - time to fill the larder

Anybody with a garden or access to the countryside can’t have missed the abundance of fruit on trees and shrubs this autumn.  Blackberries, hawthorn, apples, sweet chestnuts, walnuts, and medlars...
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Black Eyed Susan - aiming for world domination

We haven’t grown Black eyed Susan -Thunbergia alata - for a number of years but 2025 and its prolonged hot summer appeared to appeal to her adventurous nature.  Planted in...
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Quince celebration - Cydonia oblonga

It was time to celebrate this week after noticing that our quince tree planted 5 years ago has finally produced its first fruit.  Quince, known scientificically as Cydonia oblonga, are...
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Leaf Cutter Bees - pac-man of the insect world

Carrying out some late summer pruning of the wisteria this week I came across several leaves with semi circular ‘bites’ removed by the Pac-man of the insect world.  These were...
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Red Velour and Rozanne - perfect partners

This year's exceptional weather has just been crowned as the hottest on record for the UK and, as gardeners, we’re all seeing the results of the prolonged hot spell.  Brown...
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Amaranthus - a great dual purpose annual performer

For a plant with such tiny seeds it’s always a surprise when Amaranthus comes into flower with its bright tassels at head height.  We love it and have decided to...
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Short back and sides for a record breaking yew hedge

I’ve gone for decades without seeing the giant yew hedge in Cirencester, Gloucestershire being clipped, but this year and last year I spotted the operation underway as I wandered through...
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Keep on propagating - plants for free

I’ve been adding to our stock of plants over the last week not because of careful planning but due to an unfortunate incident.  Several pots were blown over after a...
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Summer pruning - Buddleja globosa

Buddleja globosa, sometimes called the orange-ball tree, is an underrated plant, perhaps because of its ubiquity and use in supermarket car parks and public planting schemes. But there's a reason...
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Perennial pea - Lathyrus latifolius ‘Rosa Perle’

We’ve written on several occasions about the joys of growing sweet peas, even mentioning and growing the wonderful Tutankhamun pea reportedly found by Howard Carter in Tutankhamun's tomb.  We’ve never...
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Malva moschata - summer-long flowering

Malva moschata, the musk  mallow, has been a favourite in my garden for a decade now.  A native plant in the U.K. it has beautiful pink flowers that are held...
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Melon-cotton aphid - the latest issue to affect UK gardens

Dutch elm disease, sudden oak death, box moth, and horse chestnut leaf mining moth are issues that we’ve become familiar with in recent years.  It seems another problem has recently...
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Sensational sea holly

It’s peak sea holly season at the moment.  The particularly warm weather has brought them on a little earlier than normal but the display is probably the best we’ve seen...
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Cephalaria gigantea - THE best plant for pollinators

Cephalaria gigantea, the giant scabious, has been in the garden for at least a decade now.  Gently seeding around it has become a major feature of the mid-June garden.  Often...
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Nettles - from sting to wing

At last!  Leaving a clump of nettles in the garden has always been recommended as a refuge and food source for insects and other invertebrates.  Results aren’t always immediate, in...
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Erigeron karvinskianus

As gardeners we’re always looking for that one special plant.  Ideally a plant that is hardy, flowers for a long period, and is perennial, returning year after year to entertain...
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