Oct may perhaps have only just started, but any one by now chomping at the little bit to get started celebrating Halloween will need seem no even more than Roger’s Gardens in Corona del Mar. Staff members of the 6.5-acre out of doors nursery and household and backyard décor superstore have produced a huge seasonal boutique built not only to showcase a range of macabre and whimsical holiday getaway items for sale, but to entertain, and probably a bit horrify, visitors of all stripes. The wander-via “Cabinet of Curiosities” options spots or scenes hosted by figures that appeared to have walked, hobbled or effervesced out of traditional Hollywood horror movies…