Your environmental factors make a difference, so it's hard to say how quickly your douglahs will develop vs. mine or someone else's. But, in general, they're going to take roughly a couple weeks to grow to full-size, then another couple of weeks to ripen. Douglahs are late-season producers, so I recommend overwintering if you can. My overwintered douglahs kept producing for a while after I brought them inside, even after the others stopped.