Garden humour. A gardener who is more interested in the garden tools than in the garden
A cartoon about the way that it’s possible for the technology or tools relating to a hobby to become more important than the results of the hobby itself (Photography is another good example, where men become obsessed with their cameras rather than their photographs).
A joke about the psychology of hobbies, leisure activities, passtimes, pass-times, men’s interests.
It’s also about the way that some men will only use equipment that has a certain muscular masculinity – as here, a noisy power tool rather than a brush or rake.