Posted: 25/03/2016 at 11:48
You need to water regularly and often so that the compost doesn't get so dry. I add JI2 to all my pots to give them the weight and the material to stay damp. Vermiculite is good too, I'm not a fan of the gels, but that's just me. With over 400 pots to keep going, gravel, grit, JInnes and time keep most going. If small ones do get very dry, fill a bucket or bowl with tepid water, add a couple of drops of washing up liquid and dunk the plant in there for a couple of hours. The washing up liquid reduces the surface tension and lets the compost get re-wetted. Although I now use no peat here, it is true that the peat free composts seems to dry out quicker than the others so need even more of a vigilant eye. As Dave says, top dressing helps alot.