You can clone in coco, in fact I only clone in coco, not soil or rockwool. It is a very clean substrate without insects or molds.
1. Scrape some of the outside of the stem to make it easier for the roots to break through. Cut the clones at the final length while holding them under water, so no air bubble can travel up the stem.
2. Coco needs to stand in water for a day or so before you can use it.
I'm taking about bagged (Canna) Coco, not coco bricks, which have to be flushed or prepared with a flushing agent.
For seeds, I would let the coco stand in a nutrient solution of 0.4EC of high P/K late flowering solution, and a pH of 6.0 (which you can use throughout the grow). That really puts a big root system on the seedlings, and prevents purpling of the stems or need for support.
However for clones, don't use any nutrients, other than rooting powder. However the same nutrients can be used after the clones have rooted, to stimulate massive root growth.
3. Use a container of whatever size you like, however make sure there is a drainage layer of perlite that is as high as the drainage holes, so there is no standing water after watering, which will rot the roots.
4. Outdoors, the clones should have filtered light.
I really like using sunlight and horticultural fleece, which the plants really love.
5. Don't mix the coco with perlite.
This way you need to water less. I would water twice a week for the first week. Don't overwater.
Last edited by TanzanianMagic; 05-17-2017 at 11:30 PM..
Reason: More info