Gardeners are being urged to place disposable nappies in their plant pots and hanging baskets this July to help keep potting soil from drying out during hot weather. The nappies contain hydrogel, composed of small crystals that swell up and retain moisture, reducing the need for frequent watering.
Heatwave Conditions Expected Across the UK
On Monday, the Met Office reported that temperatures in the UK were expected to climb into the low 30s Celsius across much of southern England from the start of the week, with some locations potentially reaching between 34C and 35C later in the week. Met Office Deputy Chief Forecaster Steven Keates said: “Parts of the UK are entering heatwave conditions: the third heatwave in the UK so far this year. However, unlike the May and June heatwaves, we are not expecting this heatwave to be record-breaking.” He added: “Much of England and Wales will be hot, and the heat will extend to parts of Scotland and Northern Ireland too, though here peak temperatures are more likely to be in the upper 20s Celsius.”
How to Use Nappies in Gardening
Gardening Know How recommends tearing open a nappy and dumping the contents into a large bowl. Add water to create a thick gel, then mix in equal parts potting soil before placing the mixture in a pot. This method helps retain moisture and supports plant growth during dry spells.
Gardeners Share Success Stories
Wanda Mercedes Ben said on Facebook that she has used nappies in her garden and it “works like a charm.” Catherine Ogryzek Cully wrote: “Wet it and then the gel like water retention part can be removed and added to the soil. Works well!” Brenda Sherman commented: “I use them to keep the plants watered when it gets so windy pots never have a chance. Many people do it this way. It does help. Sponges also do the same job.” Susie Yahola Cournoyer said: “Before putting it in the pot, I took an ice pick & punched some holes in it. That allows it to share water with the plant & keeps it from pooling in the pot. The plastic side of the diaper also helps keep things from drying out. The only problem I've had is getting all the roots out of the diaper in spring when repotting.”
Best Watering Practices for Hot Weather
A lack of rain is not ideal for garden plants, so it is important to provide water deeply and infrequently, soaking the soil directly at the base of plants early in the morning to encourage deep root growth and minimal evaporation. Young and establishing plants should be prioritised, as they suffer most from a lack of moisture.



