A vertical garden turns a blank fence or wall into a living pantry. You can usually install a kit in one weekend, and early spring is the best time to start so your plants take hold before the summer heat hits.
Get quotes from at least two local nurseries or garden centers for the kit and soil. Prices fluctuate based on quality, so don't grab the first one you see.
That 15-month window is a deadline, not free money. If you still have a balance once the period ends, you will start paying interest on whatever is left over.