As I write this, the thermometer is set to soar into the mid-thirties centigrade later today. Admittedly the forecast is suggesting that it may be the classic British summer week of a few hot days followed by a thunderstorm. Anyone who knows me well will know that I’m not looking forward to the thunderstorm bit! That said, I would welcome the rain. In fairness, the garden isn’t looking quite as parched as it did a week or so ago. That Thursday of heavy downpours has refreshed the grass and the veg plot remained damp for several days after. More importantly, the pond filled up as did our water butts, and that’s where I want to focus really – what we do to manage our water wisely.
Scarily, over 25 years ago, I remember cataloguing a report from the then National Rivers Authority called Water: Nature’s Precious Resource which was in high demand from our Environmental Sciences students. This report emphasised that, whilst the press might focus on droughts in less developed parts of the world, the developed world needed to become much smarter at managing its water supply as changes to the climate were already beginning to signal trouble ahead. Without a doubt, handling books on these topics influenced my own approach to managing water, especially as gardeners can get a bit of a bad reputation when it comes to water usage! So what steps can we each take to do our bit? I don’t suppose I’m going to mention anything you don’t already know about but, as each summer seems to become a little warmer, there’s no harm in reminding ourselves of the changes we can make.
Let’s start with water meters. I’ve always found it interesting that we expect to pay for gas and electricity according to usage but not water. If you’ve not yet fitted a meter, do consider it. Compulsory metering is being rolled out by Thames Water but not to our area just yet but you can get a step ahead and request an installation. Evidence suggests that if you are a one or two person household, you will almost certainly save money as well as water!
Without doubt, a water meter makes you think about how much you are using, particularly in the garden. I suspect that there is a correlation between the owners of water meters and the owners of water butts! We have two water butts and every summer, as they run dry, we threaten to install more. The challenges are space and aesthetics. The two butts we have are not things of beauty! Located behind the shed, they are generally out of sight but the most obvious place to install more is on the patio and, worse than that, directly beneath our carefully chosen light fittings! You can appreciate our dilemma! We keep flicking through catalogues and websites offering slim, discrete designs, designs that pretend to be something else, and designs that also cost a small fortune! At some point we will bite the bullet as we really value our rainwater stocks, not just to avoid using tap water unnecessarily, but to ensure we can water acid loving plants such as our blueberries and our Christmas tree with lime-free water. We also use it to top up the pond occasionally which is better for the wildlife. According to the Consumer Council for Water, “The average house roof in the UK collects enough rain water in a year to fill about 450 water butts.” Just to be clear, I’m not suggesting that you install 450 butts – that would be a little excessive!
Being selective about what you water in the garden is also important. New plants deserve good and frequent soakings as there’s nothing more soul-destroying than seeing your new favourite flower wilt and die within days. Try to find time to water either early morning or later evening to prevent excessive evaporation and also accidental scorching of leaves. The veg plot also needs careful attention. There’s not much point in throwing away all the hard work that goes into germinating, pricking out and planting on young veg plants, only to fry them on a sunny day.
Most advice on using water wisely in the garden makes it clear that you should ditch that sprinkler! That said, I have one exception to that rule and that has been trying to soak around the root area of a large tree. Our birch tree is really struggling and the tree surgeon’s advice was to really soak a wide area around the tree once a week. If we just leave the hose on, then the water runs off. Leaving the sprinkler spraying gently around the base of the tree enables more water to be absorbed where we need it.
Mulching your borders in spring to seal in moisture is something that I always attribute to serious gardeners! For years I thought about doing it and would usually remember too late. We also had a run of very dry January and Februaries which meant that I felt I’d already missed the boat. Mulching also helps condition the soil and last year I decided I would be organised and we ordered sacks and sacks of mulch. It all seemed such a great idea until our rather hairy cats rolled in the straw-like substance and our lounge looked more mulched than the border!
Finally, I’m going to mention the ‘lawn’. If you are fortunate enough to have a garden with a piece of ‘green’ in the middle, I suspect that, like me, it’s not exactly bowling green standard. Don’t water the grass when it’s hot and dry, it will turn green again remarkably quickly after one of those stormy downpours. Also, don’t cut during dry weather unless you really have to. Let some of the weeks flower and enable the bees and other insects to flourish on it.