Hoyas are basically epiphytes right? They grow on trees. Sooo...technically...would they survive in their pots with just mistings? Multiple times a day soaking until dripping mistings? Then we wouldn't have to worry about the soil they're in...
whaddya think?
Silly thought...
I think even epiphytes have roots that get rained on...even though the roots are anchored on bark or in debris, they still need moisture...I don't think a hoya would survive with only foliar watering and feeding....BUT, let's see what others say because I'm hardly an expert on epiphytes...
Shelley
3G - basically I think you are kinda sorta partly right..
Suggestion for you both... Google and read about Epiphytes and Semi Epiphytes....
The reason we can root cuttings, is because as the vine needs to, it will produce roots from a node to cling AND to nourish the plant. Others like lacunosa climb on limbs and trunk...all of their tiny roots (which are called aerial roots when they are in the air). Lacunosa will decided to fall down from a limb...then the roots are aerial but they are, in fact still nourishing the plant with moisture.
If you learn more about how various epiphytes and semi epiphytes live, you will understand more about hoyas etc.
I think I see an experiment in my future...
(eyes the plaster walls)
Well, I have seen curtisii growing up a painted post in a carport!!!
But remember...the substrate the hoya is growing on needs to provide some moisture and something for the roots to grab onto...even a bit of texture. The ambient environment needs to nourish the plant.... Try a trunk with the bark on it, mist it often and dunk it in a bucket from time to time with some fertilizer. You can get your hoya (I would try lacunosa or obscura...they are easy...or pusilla..) to grow up the trunk...you can cut it away from the pot.