There is nothing quite as good as fresh rainwater for your plants, in fact
many plants will actually grow better with fresh rainwater than they
might with your tap water (depending on where you live - for example if
you give your hard water with a high pH to acid loving plants such as
citrus plants, they will not like it) in this section you will find
everything that you need to collect the rainwater form your new greenhouse
and save it in a waterbutt.