Golden you can use what ever you want to fertilize your Hoyas, plants don't care for brand names. I have never used VF-11 but I think it is a micronutrient additive vs macronutrients which include Nitrogen, Potassium and Phosphorus that are the base of standard fertilizers. A kelp based concentrate would probably be a good replacement if you are looking for a fertilizer/foliage spray. I use the fertilizers that are for my orchids which is usually Dyna-Grow and more recently a switch to an organic fertilizer called Wegener's. I have even used an organic fish emulsion that was somehow rendered not stinky and I think that is a large component of the new Wegners fertilizer along with what is probably composted sheep manure. I use a balanced fertilizer or close to it anyways and I have stopped using bloom boosters because I think they are unnecessary as long as you provide the plant what it needs to flower. I use a more dilute fertilizer than is recommended on the labels and I fertilize more often instead of a heavy does every once and a while, that way I don't have to worry as much about fertilizer damage. I also use my fish aquarium water for my orchids and Hoyas and the low TDS (50/50 RO/tap) water that my Apistogramma Cichlids need is perfect for plants that are in terrariums or otherwise sensitive to mineral salt build up. If you have a hydroponics store locally I would recommend a visit because the ones in my area at least cater to orchid growers and have many potting additives, organic fertilizers, pest treatments, pots, lights and anything else you could ever need to grow just about anything. Mike

Listen, guys, here is the deal. I am not in any way saying that VF-11 is no good. It is good, but is NOT A MIRACLE. It has all the right stuff. Just like many fertilizers. There is no such thing as "immediate" results. Another thing is, what makes a flowering plant bloom is plenty of real light, sunshine; fertilizer that is high in second and third number on a bottle (0.01-0.3-0.7 for example) high-phosphorus fertilizer. SuperThrive is a hormone that might help your plants grow a bit faster. It helped mine. Another thing with SuperThrive, it is not a MIRACALE. No "one drop per gallon" stuff! I use a teaspoon a gallon and that seems to work. Another thing, Hoyas come from all over the world. Some like it hot and sunny, and some like it shady. They are (most of them) considered succulents. If you are really into giving them what they want, check out where your particular Hoya came from originally (I do not mean nursery in Chicago). If it is originated in Thailand, you can check what climate it is there and try to simulate the climate yourself. But it is too much work. I grow my Hoyas under special florescent lights and they are doing fine. This is what I have learned from reading books, and talking to people: You want them to grow use hormone filled fertilizer. Fertilizers with high amount of nitrogen will produce rapid but week growth. You want them to bloom use High-Phosphorus one. Take your Hoyas outside in a nice, sunny day. Do not over-spray Hoyas-Wet leaves mean fungus. Again, none of this is a "rule of thumb", but this is what helped me to take care of my plants. Common sense, knowledge of your plant origins, and some knowledge of a plant structure and function (botany stuff) is what you need to make any plant happy1

I agree with Pirate Girl and greenman28 too, spring flush is happening for all my different kinds plants and they are all getting lots of new growth. Each type of plant I have uses a different type of fertilizer (African violet, hoya, orchid, foliage...) therefore in my area of the world none of the different types of fertilizers I use can lay claim to doing it - I think right now it's nature!

I like VF-11 better than regular fertilizers, so yes, I would recommend it. As for your kerrii, it's hard to say what the problem is. If it's budding up, that doesn't necessarily mean it's ok as it's not uncommon for a failing plant to flower in kind of a last ditch effort to seed and live on that way. If it's drooping, I'd say it's not taking up water, so I would repot it. Kerrii has a pretty hefty root system, so if it's in a tiny pot, it may just need more room. Denise in Omaha