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In this lesson, we will learn how to start your own seed with Rockwool Cubes. Below is a detailed guide to success with Rockwool, and a step-by-step video tutorial can be found at the bottom of the page.
Step 3: Leave Them Alone And Let Them Grow
This will essentially starve and kill your seedling.
This method is as old-school as it gets, drop your seeds in some dirt, add water, and you’re done.
But the best way to germinate weed seeds would really be a combination of these methods.
Once you’ve chosen your preferred technique, use the steps below to kick off the vegetative stage:
Soil growers often choose to start the process with seeds. But the process below is effective regardless of whether you grow in soil or hydro.
Rockwool cubes are naturally alkaline. Because cannabis plants prefer slightly acidic soil, growers have to stabilise the pH of their cubes before sowing seeds (you’ll find out how to do this below).
Top Tips for Using Rockwool
Many cannabis growers and businesses are making the switch to more sustainable and environmentally friendly products and methods. The idea of used Rockwool cubes sitting in a landfill site repels some cultivators. Because many growers still don’t make their own compost, and don’t want to go to the effort of shredding up their cubes, this is exactly where many Rockwool cubes sadly end up.
Yes! Rockwool contains basalt, which works great as a soil amendment in general. Once it becomes weathered over time, it releases nutrients such as phosphorus into the soil.
The inception of mineral wool came about when observers at a volcano watched strong winds whip lava into woolly fibres.
There are many benefits to growing cannabis with Rockwool, especially when doing so hydroponically.