Many people enjoy the benefits of a hobby greenhouse on their roof gardens. With the open exposure of a roof garden the situation is perfect for greenhouse growing. A small hobby greenhouse is the perfect way to get a jump on the season by starting your own rooted cuttings and seeding for planting in spring. You can plant many of your containers in the greenhouse early in spring and establish them weeks before your gardening friends who don't have a greenhouse.
It is not necessary to provide extensive heat to your new greenhouse. A small space heater will extend the growing season by three to four months. Some advice from an experienced nurseryman at your local garden center may be useful here. Bring some of the statistics on your roof garden to him when you go to visit.
