*read title*Please answer both questions.
There is really no specific time of the year that dragons will mate. Healthy bearded dragons that are fed properly prior to breeding can breed any time of the year, except when they are brumating. As for the dig box, AKA laying box, good substrate can consist of a mixture of eco-earth and perilite or vermiculite. The consistency should be moist enough that it clumps together when squeezed without dripping. Place the mixture in a large rubber - made like container, 18 inches deep on one side and 12 inches deep on the other side. Place your gravid female in the laying box with a light and allow her to dig her deposit site. If she does not dig, place her back in her enclosure and wait for her to begin digging again, and then place her back in the laying box. She will dig herself a deposit zone and back herself into the laying area. After she has laid her eggs, allow her to cover the site back up. Once she has stopped covering the site, place her back in her enclosure, give her some water and offer her some food. That is basically all that you need to do with a dig box for your female. It isn't too hard to construct and females take to them rather easily. Their instincts will usually tell them what to do. I hope that I helped. Best of luck! (: -Kenzie
The only thing I would like to add is that I started holes for mine and it worked like a charm. Also after letting her rest and eat a bit after laying i would give her a nice soak in warm water which also seemed to help
