Grodan 1" Starter / Cutting Seed Cubes -
The SBS (single block system) is the most popular propagation block on the hobby market.
These rockwool cubes are actually 1.5" but many growers refer to them as the larger 1" propagation cube. They are ideal for starting seedlings/cuttings, they can then be transferred into 7.5cm (three inch) cubes. Afterwards, the growing cubes are either planted onto rockwool slabs or into your hydroponic system or other substrate.
Grodan Rockwool combine great crop growth for the best possible start.
Optimum strength and flexibility Free from root disease Ideal air to water balance Simple controllability of water and nutrients Strong root growth throughout the entire block
You have 4 choices of purchasing SBS propagation / starter blocks online and are available in the following:
77, 1" Cubes in a specially manufactured black tray which excludes light from the root zone.
Simple Refills (propagator AO Cubes) for your SBS trays of 92 for maximum economy.
A box of 18 trays containing 77 cubes per tray giving you 1386 cubes neatly packed on the 18 trays.
A box of refill sheets (propagator AO Cubes) containing 18 Refills in sheets of 92 cubes which will give you a total of 1656 cubes.
DELIVERY FROM JUST £3.95!