I go by the direction for a gallon then when the liquid runs out the bottom I go to the next plant. I know, that doesn't help much but it depends on the size of the pot! Just water till soaked and go to the next.

Please tell me what fertilizer is best to make Plumeria bloom? I have a desert rose, it is a succulent, but does it belong to the Plumeria family? Their flowers have same shape and same color, do they need the same care? If I would like to send a picture on the forum, what EMail address should I send? I've asked too many questions, right? Sorry! Kquat

Kquat, I don't know what to tell you about the other plant... I'm not familiar with it... but with the fertilizer, that's the exact thing I do... it's too difficult to make a science out of it :)... just water the darn things... hehehe... :)
Brittany
P.S. As long as you don't over water you're alright... I use a bloom booster fertilizer to help mine bloom... regular miracle gro fertilizer helps the plant grow, bloom booster encourages flower production instead of leaves...

frangi: You gave me good teaching. Thank you.
Kquat