Grodan Rockwool Growing Medium Grow Cubes 1/4" 5.07cuft 25016

Grow-Cubes are small 1/4” cubes of stone wool (stone wool). There are several advantages:Grow-Cubes stack on top of each other leaving air space in between them this promotes root growth.
Each cube has four surfaces from which excess water can drain. This way, even if you water a lot, the Grow-Cubes will not get water logged.
You have less algae growth on the top than with the smooth surface Gro-Blocks™.
The Grow-Cubes are the driest of our products with properties of a 50/50 mix. (50% water/50% air)
Very easy to mix with any other potting mix.
Special advantages are achieved by mixing Grow-Cubes in with clay pellets. The Grow-Cubes will help spread the water in the container as well has keeping a water buffer in between the watering.
Lightweight; approx. 1/10 of the weight of a bag of potting soil.
See Grow-Cube growing guide right for easy instructions.

*Note: A one gal. nursery pot does not hold a full US-gallon.
The approx. volume is 88 oz.

SHIPPING COST NOTICE - This item is listed here primarily to show in-store availability, but we can also ship it. HOWEVER it may be heavier / bulkier than our websites's Shipping (Canada Post and UPS, etc.) 'Apps' can handle and give us somewhat accurate shipping charges for - so PLEASE ONLY ORDER THIS ITEM IF you are flexible about shipping charges - your shipping charge will likely need to be adjusted and an additional charge required just to cover the cost (we do not make money on shipping, we only aim to cover the cost) - we will often even try to share and/or absorb what we can and not ask for additional Shipping payment if/when we can avoid it, and we will contact you before shipping anything if there are necessary added charges of course.

Stock # 25016