Growthcraft 4.1.1 (A dev version, fixed in-code problems with generation)
Quark r1.6-177
Forge 14.23.5.2847

For some reason, whenever I have both Growthcraft: Community Edition and Quark installed at the same time, I cannot seem to get Growthcraft's beehives to generate at all. Without Quark, they generate just fine at the usual 1 in 32 chunk chance. I do not think this is on Growthcraft's end.