This Grodan Rockwool Cube is big enough to grow most vegetables and some fruits right through their entire lifespan. Start your seedlings and transplant them into this huge cube to grow really big! Ideal for a hydroponic setup that has plenty of space, these blocks are simple to use: just soak them, give them a shake, and pop your seedling into the hole and you’re done—don’t worry if your seedling is rooted in a round or square plug that doesn’t fit pefectly: a few air pockets are beneficial to the growing plant.

Made in Denmark since 1969, Grodan stonewool Starter Plugs have excellent capacity for absorbing nutrient solutions while retaining plenty of oxygen for rapid plant growth.

Pro-tip: Looking for other sizes of rockwool cubes?
Made in Denmark since 1969, Grodan stonewool Starter Plugs have excellent capacity for absorbing nutrient solutions while retaining plenty of oxygen for rapid plant growth.

Hugo Grow Cube 6" x 6" x 5.8" (with hole)