Temperature and Gritty Mix Questions
In anticipation of repotting and moving my plants outside this spring, I have a few questions that I'm hoping those of you with more experience can answer.
I had initially planned to move my succulents (echeverias mostly, some pachyphytum/pachyverias and graptoverias) outside in May; however, nighttime temps in May here are around 40 degrees, and some of the online care sheets I've seen for some of my species say to not allow them to get below 50 degrees. I don't get those kind of temperatures until June, which won't give the plants much time outdoors. Is 50 degrees a hard rule, or are nighttime temperatures in the 40's acceptable?
Also, after hearing so many good things about Al's gritty mix for months now, I think I should give it a shot this spring. My questions are:
1. Can you put some kind of decorative cover over the mix, and if so, what kind would be acceptable? I see a lot of red lava rock these days, as well as mixed small gravel.
2. I was planning to use a slow-release fertilizer for the first time; is that compatible with the mix, or will I not need it?
3. When sifting the turface and gran-i-grit, how large should the holes in my sifter be? I don't have anything fancy so I'll be purchasing a kitchen strainer of the right size if I can find one.
Thanks in advance!!