Don't waste your money. You mix the fertilizer in with water in the container, but you cannot regulate the quantity each plant gets. The more you use it, the more it dilutes the mixture. Buy a cheap pump and mix fertilizer in garbage cans. You can then use the pump to distribute to each rose.

Or get an inexpensive siphon injector. But, they clog up quite often. When it works it's better than the E-Z Flo.

wirosarian and Karl,

I use the siphon injector from Dramm and have never had a clogging issue but if you put a piece of nylon stocking over the end of the suction hose and hold it in place with a rubber band, it should never clog.

I use it with fish emulsion, miracle-gro, liquid iron, and alfalfa tea. With the alfalfa tea I float (with a ring of styrofoam) a 6" funnel on top of the tea in the garbage can. In the funnel I put a common paper paint strainer and then the siphon hose (with the nylon stocking on) in the paint strainer. This gives much more surface area for filtration before it gets to the siphon intake.

Rob

I'm always amazed at the ingenuity of rose enthusiasts!
Rob, Do you have the website of the Dramm siphon injector?

Huh, I was surprised when you asked for the website Karl because I thought they were quite commonly for sale everywhere, but I can't even find them on Amazon.

Here is the Dramm page that they are on. Scroll about 2/3 down the page. It's a heavy brass one. They list it with their commercial products. I don't know if you can order just one from them.
http://www.dramm.com/html/main.isx?sub=10

and a video of it, haha, takes a minute to load.
http://www.dramm.com/html/main.isx?sub=76

Apparently they've come out with a plastic one too, which is on Amazon, I've included a link for that also.
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=dramm+siphon&x=0amp;y=0

http://www.dramm.com/html/main.isx?sub=76

It might be that they are a Wisconsin company, that I find them (the heavy brass one) in just about every garden center and hardware store around here.

If you can't find one by you or for mail order, I'll gladly ship one to you.

Rob

Southwest Fertilizer on Bissonet St. in Houston has them and they ship - they also have a website.