Plants and gardening can be a relaxing hobby, and an indoor greenhouse can be just the ticket for all-seasons gardening.
A lot of windows and a fair amount of natural light make this possible. Strategically place shelving so your favorite indoor plants can benefit from the sun. South-facing windows will receive the most sunlight.
Add an oversized chair for a cozy reading spot. The garden room can also house any outdoor plants you need to shelter from harsh winter conditions.