in my opinion, they need some time. if you are on holiday in 4 weeks, you should be in the drying or curing stages by then. nice looking plant none the less
Sounds about right to me I'm on holiday a week or so before expected harvest too. As I'm doing, get a friend to "tend" for a small fee, payable at harvest
I'd say a minimum of a month, also your location, factors in. I'm in NE USA and I'm outside til mid-Oct. or before frost kicks in. Keep checking your trichs and pistils.
Yeah, watch the trichs. You could probably leave them in the ground for ten more weeks, but the lack of new flowers tells me you have two or three weeks to best buds. My preference is all cloudy with about 10% amber.