Harvest water


Hurrah, some rain is forecast.  I know, it’s June, and we all want to be outside enjoying the sun and the last thing we want is rain.  But 2019 has been a dry year so far.  Down in the south-west, January was incredibly dry. Then summer arrived early in February, when temperatures soared and reached record highs in some part of the country. The rain returned in March, but April and May have had lower than average rainfall. 

A worrying picture

The Environment Agency’s water flow and river level data for England look worrying.  There were no rivers recorded as having above normal flows, in fact, more than half of the rivers that are recorded in the data had a daily flow that was below normal or notably low compared with the mean data for this time of year.  In the south-west, the cumulative rainfall total for May is less than 40 per cent of the monthly long-term average.  We are going to need higher than average rain over the coming weeks and months to help to replenish the ground water.  Its beginning to look much like 1976 and 1977 which is not good news for our gardens. Hence my enthusiasm for the predicted rainfall.

Our gardens are already suffering. I don’t know about your soil, but my soil is dry! I garden on a heavy clay and it’s already baked hard. In fact, it’s hardly changed since last year. I’m planning for another dry year.

Its not too late to protect your soil and harvest some water

Firstly, get mulching!  Its amazing what a simple layer of mulch over your soil does to trap moisture. Mulch can be anything from compost, straw, bark, gravel, crushed slate. I like grass clippings at this time of year. I don’t use them fresh but spread them out and leave them to dry for a few days, so they are not too ‘hot’ when I spread them over the soil.  I have been mulching with comfrey leaves in the polytunnel as they will not only protect the soil, but release minerals too, so a double benefit.

mulched raised bed
The raised bed in spring still covered by a thick mulch

My experiment with deep mulched beds in the style of Ruth Stout is looking good. Last autumn I covered a raised bed with a thick layer of old straw and hay. It protected the soil over winter, stopped weed seeds germinating but most importantly, it conserved water. By April all the other beds in the vegetable garden were dry and needed watering before I could sow any seeds or put out transplants. It was so different in the mulched bed.  The soil under the mulch was moist and ready to plant up!  It’s now early June and the soil is still moist and I haven’t had to water any plants.  

The soil under the mulch in May is still moist

I bet you’re all shouting; ‘What about slugs’ Well, this year I haven’t seen many, so I am taking the risk. If they do appear, I’ll pick them off and then use some nematodes to wrestle back control.

Be inventive and save some water

What else can you do now? Save water! If you are not harvesting water, start now. Install water butts to catch water from roofs, from the house roof to the shed roof. You can harvest on the allotment too, as this photo shows. A simple wriggly tin roof that catches water and directs it into water butt. In fact, anything flat can be put up to direct water into a container.

This blog was first published on www.climatechangegarden.uk on 6 June 2019