I am thinking your best bet might be a plant that doesn't require soil to do well. For example, a lot of people display Tillandsia ("air plant") in glass orbs or jars without any soil (though you do have to watch out for rot if you water them in the container). Another idea would be to fill the vase with water and grow a plant cutting that can root and survive in water. There are many plants that can adapt to growing in water. Wandering jew, spider plant, sygonium, aglaonema (Chinese evergreen), and pothos are just a few of the many plants that can survive longterm in water. You'd want to change the water periodically to avoid the water becoming foul. Here is a link that might be useful: Tillandsia display idea

hi Tilandsias are a branch of the Bromeliad family. About the only thing that will kill them is too much waterlol. you can attach them to a tree limb or hang them by a wire or glue to a sheet of cork. a pot with no media just be sure it drains well!! They flush red when about to flower. There is a Bromeliad forum if you need more info??? gary

Debby that was good info What I did yesterday down in South west Florida is go and pull down a good bunch most of the trunk full actually of that hanging moss that hangs off mostly trees. Is grey and whispy I have used it before for plants. More so in lining a hanging basket or some type of liner for something picked up here or there or sometimes on top of a large planter to make it look in my opinion fancier. But what I got yesterday I though I would try in a Kokedama way Making up a soil ball of no soil potting mix mixed with a product I bought yesterday Vermiculite I think it is and maybe some peat moss. I brought a couple of bags of it down from Canada. Large commercial bags of Peat Moss that are sold down in the U.S. so not a problem at the border.Anyway try forming a ball sort of shape and then wrap it in the moss and then I have some neat string type of product that I picked up somewhere a couple of years ago Will wrap the balls in that and tie them up I have some orchids that are struggling after being down here half a year with no care These moss balls might just fix the little darlings up. I just have to get doing the pictures to post Don't know why I keep putting off doing this For sure is a real good sign of old age. and not wanting to adapt to new and better ways in this case.

Items resting in hanging globes can be removed for soaking. Items attached to wood... heavy misting may be all that's possible. Somehow plants do survive that way -- I saw a picture once of Caput Medusa plants hanging from the underside of a branch, out in the wilds. I imagine they had enough rainwater and humidity to be happy in that situation. Since we often don't have that humidity (especially me here in New Mexico), soaking is one way to remedy that situation for plants that like it. And I, too, have most of my smaller plants sitting in shot glasses, small cups, dishes, things I find at thrift stores. I sit those plants under grow lights. The big ones I hang using safe wire (steel, aluminum, pipe cleaners, etc.), and they are currently hanging outside in a north-facing porch.