Confirm your age
Please verify that you are 18 years of age or older to enter this site.
Grodan
Grodan’s Gro-Blocks are used in grow rooms and greenhouses worldwide. Trusted by hydroponic growers for over a decade, Grodan Gro-Blocks allow professional cultivators to grow more top quality produce with fewer inputs. The homogeneity of Grodan Gro-Blocks provides growers with a solid, consistent base for optimizing crop production. Cultivators can easily achieve a great balance of oxygen to nutrients and drive rapid plant growth. Grodan Gro-Blocks are clean, disease and pest free, lightweight, and easy-to-use. Professional growers love Grodan Gro-Blocks because they allow efficient use of water and nutrients throughout the growth cycle.
- Effortless start-up of propagation. Grodan Gro-Blocks are perfect for propagating young plants under a wide range of propagating conditions. The Grodan Gro-Blocks are easy to saturate and water is distributed uniformly throughout the block, for reliable root development and plant growth
- Excellent root growth throughout the block. The Grodan stone wool ensures uniform distribution of water and nutrients throughout the block, encouraging the roots to penetrate deeply into the block.
- Greater firmness for better handling. During the propagation stage, blocks generally will be manually or mechanically handled several times. Due to the greater firmness of the Grodan Gro-Blocks, this handling is no problem and the Grodan Gro-Block will maintain its shape and structure. The stable firmness of the blocks becomes particularly important when the blocks are placed, spaced and picked up several times during propagation.
2 products
2 products
Sort by:
Grodan
From $1.99
Unit price perFrom $1.99
Unit price perGro-Blocks™ are similar to a plant container. Need a 4 in pot? Then choose a 4 in Gro-Block™. Small plants can be fully grown in our larger Gro-Blocks™. Holes are perfect size for any 1.5 in starter plug. Come in packs labeled with instructions.
Whether starting your seeds and cuttings in A-OK Starters, Macroplugs, or Mini-Blocks it is a good idea to transplant into a 3” or 4” block.
You know it’s time to transplant to the Gro-Block when roots coming out of the starter are about 1” long.
Just place your Mini-Block on top of the 3” or 4” block without the hole, or your Macroplug/A-OK into the 3” or 4” block with the hole and watch your plant flourish.
Detailed description:
- Gro-Blocks : Delta 10 Large 4"
- Sizes in inches : 4x4x4
- Hole sizes available : 1.5"
-Sold Individually, Blocks/Package of 6 unwrapped, or Case with 24 Package/144 unwrapped Blocks
From $4.99
Unit price perFrom $4.99
Unit price perGrodan Hugo Gro-Blocks can support many species throughout their lifecycle. The Hugo comes with a pre-fabricated hole that’s perfectly sized to accommodate 1.5” Grodan A-OK Starter Plugs™. Be sure not to rush the propagation period and allow your seedlings or cuttings sufficient time to fully exploit the stone wool in the Grodan A-OK Starter Plug™ before transplanting.
Hugo is large enough to grow out most vegetables and some fruits for the entire life span of the plant.
Hugo’s holes are the perfect size for any 1.5” A-OK starter plug or Macroplug.
When your starter has outgrown its home, showing three leaves, or roots reaching one 1” below the cube, Hugo is happy to receive the transplant.
Hugo is sold individually with instructions on the wrapping.
Hand water or use with drippers or in Ebb & Flow (Flood) systems.
Detailed description:
- Gro-Blocks : Hugo 6"
- Size in inches : 6x6x6
- Hole sizes avail : 1.5"
- Blocks/Strip : 1
- Usage Example : Grow plants up to 3-4ft.
- Sold Individually, or Case with 64 unwrapped Blocks