Grow Block is an innovative type of new growing block made of 100% coco substrate. The product is delivered as a dry plate enclosed in netting to be expanded into a block, offering the Jiffy ‘container and media in one’ benefits such as the logistical advantages saving transportation and storage costs.
The innovative netting holding the substrate is “adjustable degradable” making it possible to adjust the degradability of the net to match the expected life span of the crop. It also makes sure the media stays inside of the block, keeping the greenhouse environment clean.
After rapid expansion with a water and fertilizer solution ‘Grow Block’ is ready for propagation or cultivation of plants. The product can be delivered in three sizes, with a seedling hole according to the specific crop requirement.

The purified, stabilized coco substrate is carefully selected by Jiffy to give a maximum Water Holding Capacity (WHC) of 60-75% with a homogenous distribution. Air filled porosity of 20-35% ensures optimum oxygen diffusion rates in the root zone. The high water holding capacity and air filled porosity result in rapid rooting and stronger roots resulting in rapid vegetative growth of plants.

The substrate of Jiffy Grow Block is stable due to the naturally high lignin content of the coco substrate. Shrinkage is held to a minimum and rapid re-saturation is guaranteed. The clean inert nature of the substrate allows for the grower to make adaptations to any fertilizer application with a broad range of EC levels.

Coco substrate is derived from pithy tissues of coconut husk and is a renewable environmentally friendly material. Combine this with the degradable netting making Grow Block the right choice for many hydroponic or any other greenhouse or nursery application.