Rocks in pots a load of crock
Pots, pots, pots. Gardeners are potty about pots, be they terracotta, plastic, self-watering or not.
The feature then discusses the science behind whether you need to line your pots with gravel, stones or old broken china – known as crocking – to help them drain.
Once, this practice was common and many people still do it today. I’m sure I can remember reading all about crocking in old gardening books or watching my parents do it.
But crocking has some unexpected consequences. I won’t spoil the fun here, nor run through the physics of water movement through different media, as copyright restrictions prevent me from reproducing the feature on my blog for a while.
Instead, just click through to the piece itself – Rocks in pots? What a crock! – for the details.
I certainly learned a lot while researching the piece, a task that was made considerably easier by a review of the evidence from Associate Professor Linda Chalker-Scott, an urban horticulturist at Washington State University.
Former CSIRO soil scientist Kevin Handreck also has his say on crocking, with an interesting twist for anyone interested in a 1960s or 70s gardening revival.
I’d love to hear if you’re convinced.