I have lots of them in containers & I fertilize them right along with my other stuff, and they do very well. During the summer, I fertilize at full strength at least every 2 weeks, and often, every weekend.
See, when you're using these fast soils, and flush them every time you water, you could actually fertilize EVERY time you water. I do that all winter long (fertigate every time they need water) so my indoor plants, including succulents, are actually getting fertilized at the rate of 12 drops of Foliage-Pro every time I water (every 3 days). I actually COULD do the same thing in the summer, but with over 300 containers to water, most every day, I can't afford the time to fertigate every time, so I try to fertilize every weekend or every other weekend when it's hot or cool.
Al
