| Grow how to cannabis info
Prior to cloning
Exposed clones will wilt within a few minutes, so it is best to have all materials ready before you start to take cuttings.
? Dip scissors and razor blade into alcohol (Grease is used to separate razor blades). Wipe cutting board with alcohol.
? Drain cubes, place into tray.
? Poke a 1/8" hole halfway into the center of each cube
? Cover prepped cubes with dome until you are ready to start (I like to pre-warm the rockwool by putting the filled tray on the heating mat for ½ hour before I start to take cuttings).
Clone types
Actively growing tops are preferred, as they contain the most growth hormones. Clones taken lower down are often spindly and less developed. I prefer 3" top clones with a 1/8" stem, 2-3 fan leaves and a slightly firm (but not yet woody) stem.
I prefer short clones (no more than 2-3 nodes) , otherwise the newly forming roots must support a large leaf and shoot. The clone should also be ' mature' ,with alternating leaves. Immature clones have leaves opposite each other and are usually pale and spindly.
Avoid stem cuts (no node) and plug cuts, as they do not root nearly as well (Roots form primarily at the nodes). Trim large fan leaves in half to minimize the leaf area the newly forming roots must support.
Selecting the clone (Where do I cut?)
Select a vigorous growing top on the mother, cut the main stem just above a fan leaf / auxiliary shoot node about 2 nodes down (as shown in red in the image). The cut can be done with trimming scissors or razor blade.
(Leaving a shoot and fan leaf on the mother allows the remaining shoot to continue growing and another shoot to grow from that node.)
Pre-Trim the raw clone: (Removing lower nodes)
Once the growing top has been selected and cut from the mother, trim shoots and fan leaves from the lowest nodes (as seen in the image). The lowest node will be inserted into the rockwool.
Cut ¼" below the lowest node with the razor blade at a 45 degree angle on the cutting board for a clean cut.
 The trimmed clone:
This 'ideal' trimmed clone was taken from a vigorous top. A fan leaf and shoot were both removed at the lowest node. The clone will soon be inserted dipped into gel, then inserted into a rockwool cube.
Trim large fan leaves in half (Reduces transpiration; the newly forming roots don't have to initially support as much leaf).
Grow how to |
