Speed Grow Natural Rock Wool Plug 10x10cm – Hydroponic Growing Cube for Transplanting

Frequently asked questions

• At what point in the grow is this Speed Grow block used?

  It is not a block for initial rooting: you first root the cutting in a smaller wool block and, once the root appears, you transplant it into this one. It gives the cutting the room it needs to develop before moving it to the Gi Grow rotary system.

• Which hole sizes are available?

  There are two models: one with a 2.6 cm hole and another with a 3.8 cm hole. Choose the one that matches the diameter of the small block you rooted in, so the transplant fits without straining the root.

• How do I prepare the blocks before transplanting?

  You need to soak them for 24 hours, keeping the pH stable at 5.5. Then drain them to avoid excess moisture and you can place the cuttings, which will develop with no risk of root suffocation.

• How many units does the box contain?

  They come in boxes of 120 units, so a single purchase covers all the cuttings a small or medium grower needs. It is a convenient way not to run short halfway through the cycle.

• Why do they fit the Gi Grow system so well?

  Because they sit so snugly that when the wheel turns there is no risk of the plants falling out. That is exactly the reassurance you need in a rotary system where the block passes through every position.

• What are the advantages of growing in rockwool?

  It lets you optimise space to fit more plants in the same growing tray and ensures a better rooting process. It also works just as well growing horizontally or vertically, which is key to getting abundant harvests in little space.