I'm designing my first saison and planned on brewing in March/April now I am thinking that I should wait until summer or at least it gets hotter to make it easier to ferment at such high temps. What do you recommend to do if the yeast "peters out" toward the end?
One of the problems I had when I brewed mine last year was the darn temperature went from 80+ down to about 70 just before I brewed it. But the yeast starter was ready, so I did it anyway, and tried to keep it as warm as I could.
In hindsight, I probably should have invested the $30 in a brewbelt or something.
To help it not stall out, I'd pitch a pretty good sized starter, keep the temp up, and not worry about settling the yeast until it's close to finished. If you have to swirl the yeast, then so be it. It will usually get there eventually. It just might take a couple extra weeks.
I had the advantage in kegging, where if it's not quite done fermenting, you can still put it in the keg and drink it. (I kegged mine at 6 weeks). If you are bottling, you could cause bottle bombs by being too impatient. Give the yeast time to eat up all of the sugar they can. Leaving some behind, gives the yeast more food than you really want in the bottle and the extra pressure can make them explode.
I think Saisons are very doable if you RDWHAHB and don't worry about making the beer too clear at the start of fermentation. There may be some other good tricks to helping the yeast do their thing, but I have just practiced patience. And I think there is a newer strain of Sasion yeast that isn't as finicky. I am pretty sure I used one of the White Labs vials.