Follow up on my post from last year, reproducing haskaps in Alaska. Basically of the two modalities, soft wood or hard wood. Because of our short season, hardwood cuttings in the later winter is the winner.
This is a plant from softwood cuttings taken in mid July 2021:
And here is a plant, from hardwood cuttings, taken during dormancy in late March 2021:
Haskaps have two grow spurs each year; the early spring initial growth and a second one in August, after fruiting. If you do a green cutting in the summer the plant barely experiences one growth cycle, just enough to put out some roots. It doesn’t have a second growth cycle until the next spring. When you start with dormant hardwood, the plant has more energy stored on the larger cutting and it gets a chance to do two growth cycles before going dormant. As you can see in the photo that’s the push of the third growth cycle.
At least for our painfully short growing seasons there is just no point on doing green cuttings mid season; you may as well wait until the next early spring and propagate from hardwood cuttings. There is a higher failure rate but the plants will end up ahead of the game compared to ones from green cuttings from the summer prior.