You were better off just letting them sit in a cup of water. But humidity dome like others mentioned is the way to go. The point is to get root growth, soil ain’t gonna cut it. Use peat pellets or rock wool cubes. I get 100% success rate every time in about 10 days. Sometimes less. The pellets seem to root faster. If you are looking for a cheap way, get the peat pellets. You can get like 16 pellets, tray and dome for like $10 from Walmart.
1. Jiffy pellet/ rock wool cubes.
Soak cubes or pellets with water ph at 6.0 for about 30 min in a bucket
2. Superthrive.- place 1 drop into the water the cubes sit in
3. Hormone powder- which you have
4. Clonex gel- ***A MUST***
5. Humidity dome with tray.
6. The right light- which you have
I don’t dip my clones in the powder, I only sprinkle the powder in the hole the clones sites in. I dip the ends of my cuts into the clonex gel. Make sure to have a cup of water handy after you make your cut, place the cut immediately in the cup of water, prevents air bubbles from traveling up the stem. While the cuts sit in the water, squeeze out the excess water from the cubes or pellets. You want them wet, not saturated. This is probably the most important part of the whole process, because saturated cubes or pellets will just rot your clones. Cut the tips off of all your leaves, this stops the clone from trying to use photosynthesis to grow, but instead forces it to produce roots. Make a hole in your cube or pellet, sprinkle the powder in the hole, take clone out of water and immediately dip into the gel, stick clone in cube or pellet. Spray the inside of the dome and clone, put the clone on the tray and cover tray with dome and walk away. The only time you need to do anything is when the dome or the cubes/pellets are dry. Remove the dome, spray it down, place it back on the tray. In about 5 days the cubes or pellets will start to get dry. Pour a little water in the tray and I mean a little bit of water, the cubes or pellets will wick up the water. Put the dome back on. Around the 8th-10th day, you will see roots.