The lids on these pots are to keep bugs and dirt out. Ollas are not meant for; bushes, shrubs, trees or any "wooded" plants. The best time to plant them is in the spring when you are planting everything else. Summer is almost over, so this is probably the worst time for me to be making ollas because it will be raining like crazy soon and they will not be needed. But, by next spring I will have a bunch of these fine pots and they will be ready to go in the ground. It may be a bad time to be making them, but that is okay with me because I find that I really like throwing these shapes on the wheel. It's fun! In the picture above I am working away in my studio making ollas while using my truck as an extra work bench (since my studio is kinda small).
My sister (who gave me the idea to start making ollas) sent me the following youtube clip about how to garden with ollas: