While it is good news that a sustainable garden has won a prize at Chelsea flower show (Garden with terracotta 3D-print bricks wins Chelsea flower show green medal, 20 May), surely all of the gardens should be environmentally sustainable? Otherwise what are we saying, that you can garden either way? This is ludicrous, given the vital need to stop doing anything unsustainable.
Dr Jennifer Poole
Romsey, Hampshire
• A garden made from 3D-printed bricks uses an awful lot of energy printing the bricks. If Giulio Giorgi wanted to give his garden a low carbon footprint, why didn’t he have them made by hand?
James Driver
Chiddingfold, Surrey
• In my working years, when presenting the results of a study project, I liked to include a slide of my starting point by displaying Tom Lehrer’s maxim for researchers: “Plagiarise, plagiarise! Let no one else’s work evade your eyes” (‘My songs spread like herpes’: why did satirical genius Tom Lehrer swap worldwide fame for obscurity?, 22 May).
Isobel Gibson
Ledbury, Herefordshire
• From Michael Wilkinson (Letters, 20 May) we learn that if you are affluent enough to afford electric cars and heat pumps then saving money on your electricity bill is a breeze. On the other hand, I imagine it isn’t so easy if you are forced to use a prepayment meter.
Peter Day
London
• Like Rae Street (Letters, 17 May), I can’t afford an air-source heat pump, an electric car or solar panels. But I can, and did, afford an electric boiler, and have never looked back.
Jim Grozier
Brighton
• Do you have a photograph you’d like to share with Guardian readers? If so, please click here to upload it. A selection will be published in our Readers’ best photographs galleries and in the print edition on Saturdays.
