Germination cubes Rootit Guide
How to germinate seeds with germination cubes
Garden centres and hydroponic grow shops sell germination cubes. There are several different brands, but they are all made from a sponge like material which retains moisture but is soft enough to allow small roots to develop and grow. Various materials have been used, including glass wool, coco fibre and synthetic polymer sponge.
Follow the advice on the cubes, normally you wet them with water (some prefer to use bottled water) or buffered water. The seed is pushed about 5mm below the surface. The damp germinating cube is then placed in a sealed sandwich box/bag to retain the moisture. The seeds often germinate within a couple of days, but may take longer.
Germination cubes: preferred way to germinate
Out of the best ways to germinate cannabis seeds, germination cubes are one of the preferred ways to get maximum germination rates. Once the seed has germinated the cube is simply transplanted into the next container to grow.
Avoid pulling the seed casing away from the seedling (especially new growers), you can damage the seedling. Its always better to wait until the seed case dries out and falls off naturally. Ripping the seed casing away from the first set of baby leaves (cotyledon) too early damages the young seedling and can kill it.
Germination can take 3-10 days, depending on environmental conditions and variety.
Step 1: Get a germination cube box from the shop
Prepare your pots with clean fresh soil. It is often easy to use small pots for this, and transport them to a larger container later.
Step 2: Water the cubes
Step 3: Place the seeds inside
Step 4: Wait for germination
Make sure to let some fresh air go into the box.
Step 5: Watch your seedlings grow
Step 6: Place the cube in a grow medium
Gently place the cubes in a larger grow medium.