Grodan MM40/40 Wrapped 40 mm Cube 2250 pcs

Description

GMM44 – Grodan MM40/40 Wrapped 40 mm Cube (2250 pcs)

40 mm mini blocks on strips for even, reliable propagation.

Grodan MM blocks are small stone wool blocks joined on a strip. Each block has one planting hole in the centre and a flat base with no grooves. The MM40/40 is a 40 mm cube for sowing seed or starting cuttings. Grodan points to its uniformity, firmness and balance of water and air, which give even results across a batch. This version comes wrapped in the carton. Grodan stone wool is naturally slightly alkaline, so soak at pH 5.5 to bring the cube to approximately pH 6.2. Grodan recommends using nutrient solution at EC 1.5 to 2.5 mS/cm for soaking, with a moderate dry-back between irrigations. Once roots are showing, move the cubes on to a larger Grodan block or slab.

Key specs

• Block size: 40 x 40 x 40 mm
• One centre planting hole
• Joined on 600 mm strips, no base grooves
• 2,250 cubes per carton
• Use: propagation