You've decided to build a geodesic dome. Super idea! Geodesic domes are great for greenhouses. The weight of the dome is distributed evenly throughout the series of triangles in the structure. Geodesic domes are lightweight, and they enclose the most amount of space with the least amount of material. Since they have less area to lose heat from, they're also very energy-efficient.
Your frame made of aluminum triangles is in place. Now it's time to insert the panels of your greenhouse. Which material will you choose?