Use dog sheds to create sheds to store gardening items -- whether you have a dog or not. Stage three dog sheds and designate them to store garden tools, pots and gardening tools and equipment.
Use inexpensive plastic shelving units to create an outdoor shed. Use as many shelving units as needed to hold and house garden equipment, planters and plants themselves. During summer months you can leave the shelves uncovered to pot and transplant flowers and vegetables. During rainy periods you can cover the shelf shed with tarp or heavy plastic to protect stored items.
Create an outdoor shed by using a triangle pyramid concept to create the structure for the shed. Use galvanized steel or PVC piping to create the structure. Attach heavy-strength plastic to cover the tee-pee. Use the shed to house garden tools, equipment and to create your own small greenhouse.