Posted: 14/05/2016 at 22:47
The clematis clan is massive, over 300 species, thousands of different hybrids and cultivars, 3 pruning groups, lots of different flowering periods, many different cultural requirements.
I grow about 500 varieties, mainly the Summer flowering, group 3.
I use new cutting material from plants that have been pruned hard back over Winter, they are in glasshouses so probably about 5 to 6 weeks ahead of garden grown plants. Cuttings from greenhouse grown material can be taken rom February onwards.
Atragenes and montanas best to take cuttings after they have finished flowering and sending out new shoots. June, July, August.
I use Doff hormone rooting powder.
I have gone full circle with the rooting medium, using coir, perlite, vermiculite, grit, sand, John Innes Seed & Cutting and eventually ending up with a peat based compost.
I have heated cables under my propagation area, temperature set at around +18C.
I don't have misting facilities, just a hose with fine rose attachment.