They are clearly on the track to developing their own software; if they don't, a similar business in the same situation will.
How long before they want to book orders via website? Unless there is an OpenTable for gardeners I am unaware of, that will require some custom code.
How long before they want to join their calendar and help desk software? How long before they want email logs integrated into the help desk? Those are custom software opportunities.
One of the most interesting things happening in software right now is how easy it has become to write just a little bit of it. The idea of a gardener developing, or directing the development of, custom code would have been laughable 20 years ago. With PHP and MySQL and ubiquitous cheap web/app hosts and proliferating web APIs, it's become increasingly common.
