Robertbruce. I sort of agree with
@purpleinopp but if you have good air-movement, wet leaves matter not a bit. It looks like you have a large greenhouse and in that case, your humidity can be better controlled. With adequate humidity, misting would not normally be necessary. I guess if you really wanted to mist those huge, tall leaves, a ladder might be called for. I have to use a three-step stool in my orchid greenhouse to water/mist my plants. I wet the leaves of hundreds of plants routinely but I have a lot of fans that move air well. I know that they do well with what I do but also know they would not if I didn't have those fans going. I also mist/spray the plants in the AM so that their leaves will dry out by nightfall.
@robertbruce, take a moment and go to your profile so that you can enter your location. That would be your city/state and/or your USDA zone. Just click on that little "guy" in the upper left column, then click on "Change your public profile", enter the information on your profile page, and then scroll down to the bottom and click on "Save Your Changes". Then, every time you post something, your location will show in the upper right-hand corner of that post.