Name: Carol Noel Hawaii (near Hilo) It's all about choices.
Wandering thru my large pots of hoyas (let's say 6" +) it occured to me that watering AT THE STEM puts a lot of moisture in the most congested part of the root system....and not out to where the feeder roots are. Hmmmmm - epiphanies come at wierd times So...I am watering around the edge of the pot (inside of course) first and then working my way towards the main stem....hopefully avoiding that nasty stem rot I sometimes get with the old wood on large plants.
I've been watering my ancient lilacs at the base - I guess the old fashioned sprinkler would do better than leaving the hose run at the base for 10-15 min (used normally when the rain barrel is empty, then about five 2-gallon watering cans).
My hoyas are in hanging baskets, so they get watered by putting them in the tub (may as well use the water after I've had a quick soak)... I also bottom-water hanging baskets by setting them into large bowls or saucers. I've really come to like the self-watering bases on a line of plastic pots that WalMart sells, too.
I have two plants I water at the base - H cv "Optimistic" and a plant I can never remember the name of. This second one, because if it runs dry of water, it loses leaves. The former because it has a 10" wide pot and if I water enough for the water to come out the bottom, it sometimes overflows. This way, within a few hours it has soaked up all the water and the potting medium at the top of the plant is damp.
I have been collecting, studying and selling hoyas for about 10 years. This Cubit is about growing hoyas, and about the hoyas I have to sell. I welcome any and all hoya lovers, whether you want to buy or not. Hooked on Hoyas is another great Hoya sight