7 Favourite Plants for Drought AND What is ‘Chop & Drop’?

It’s been an interesting summer so far to say the least.  One which will be remembered for its heat and lack of rain.  It has felt like August since June, except hotter.  Here, we are scratching our heads wondering if its a blip or a sign of the times. 

I’ve been watching to see which plants are holding their own while others struggle. Established plants will generally cope better than those which have been recently transplanted. Those which are part of a lovely community can be aided by their neighbours foliage holding moist microclimate under their canopies. However some plants have flowered their socks off already and are now lay spent and a bit crispy.

Here are those I’ve noticed for doing well;

  1. Euphorbia characias wulfenii – I adore this and use it in practically every garden I can for its grey blue evergreen foliage, and architectural spring flowers. Its certainly loving this season and not bothered by the heat at all. Interestingly it wilts in hard frosts and then perks up when it thaws.

    Euphorbia characias 'Wulfenii'

    Euphorbia Characias ‘Wulfenii’

  2. Geranium macrorrhizum – Presumably these shallow rooted plants store some reserves in the woody stems which lay on the surface of the soil, or perhaps its the slightly hairy leaves that help – either way its happy in dry shade generally – and its doing just fine in my gardens.
  3. Artemesia – I often use Artemesia ‘Powis Castle’ whose silvery leaves love a hot dry, well drained spot. The fluffy foliage has a light texture, perfect to contrast bolder shapes.

    Artemesia 'Powis Castle' in foreground Winter '16

    Artemesia ‘Powis Castle’ in the foreground – still looking great during the winter

  4. Sedum – The fleshy leaves and stems are water stores and so sedums are perfectly adapted for drought, and there are many to choose from.

    Sedum

    Sedum 

  5. Grasses – Ok that’s a big group of plants – my favourites ornamental grasses are all doing really well. Stipa gigantea, Stipa tenuissima, Carex testacea and Calamagrostis Karl Forester.

    Stipa tenuissima in drought tolerant border

    Stipa tenuissima, now known at Nassela tenuissima.

  6. Phlomis ruselliana – A good example of a ‘wooly plant’ – using fine hairs on it surface to help protect from the suns rays and retain moisture. The dense foliage works brilliantly at keeping the soil moist too.
  7. Poppies – Poppies have lovely tap roots which help them to tolerate prolonged dry spells. The big oriental poppies may flop, and can look a mess but try using this foliage to create mulch. Im getting into ‘chop and drop’ mulch at the allotment, and I reckon oriental poppies are a ideal candidate.

Chop & Drop is a permaculture concept – in that it mimics a natural cycle. Using fresh foliage to create a mulch and feed for the soil, and ultimately our plants. 

Simply lay leaves directly on the soil to retain moisture, and as they breakdown nutrients become available to the soil again. It doesn’t look as neat and tidy as our traditional horticultural methods but its very easy and it works.

Chop & Drop Mulch under courgette plant

My chop & drop mulch at work under a courgette plant

My light soil at the allotment is prone to drying out and blowing away, so Ive been using comfrey leaves and also dandelions (seeing as I have so many) but any leaves will work. The very best plants for this are deep tap rooted plants (hence my comfrey & dandelions) or nitrogen fixing plants such as clover (which you may have in your lawn clippings) and foliage from peas and beans.

Know your soil; Its useful to remember that many of these plants listed – are adapted to hot dry conditions, and along with this require good drainage – which is where winter can be problematic. Its really valuable to take the time to get to know your site well before planting new areas for these reasons.

When to plant; For some time Ive been advising clients to either plant in spring or autumn – to avoid lots of watering and to work with nature and avoid the struggle of the summer heat. This is not what everyone wants to hear but I don’t really believe we need to or should be watering our gardens generally let alone all summer long to establish a newly planted scheme. Of course we have special plants, pots and crops which we want to tend with a can of water now and then, no judgements here.

See my previous post for more thoughts on designing resilient gardens

Stay hydrated!

1 Comment

  1. […] So protect your soil; only dig when you must, mulch it and cover it. […]

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