^^ what he said those are stipules just part of the growth, they're not pre flowers so dont worry... They look nice though, the purpling stems can happen for a multiple of reasons either the pheno type (just written in the plants code), cooler temps (Ive heard it can be caused if your temps fluctuate more than 10 degrees from the high point to the low), and lastly which kind of ties in with the first and second it could be caused by stress however sensitive the plant is to any changes that may occur.. The dots on the leaves looks to me like some pests nothing too serious for being outdoor just keep an eye out especially on the underside of the leaves, but again looks like they're not really effected by them at this stage which means you have a stronger gene against them but just some caution don't let the pests start getting out of hand