Durable, hard plastic that is washable and reusable. New bigger sizes to accommodate larger nursery pots. Color is dark green, except 18 in, 20 in and 25 in, which are black.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

The premium quality, injection molded nursery pots are much thicker and durable than traditional "blow molded" nursery pots. These are the best quality pots on the market. Wide rim with grip lip for easy movement. They are reusable pots offering a long life because of their high quality. Made in the USA.

Perfectly designed to support medium sized plants through to harvest. The Jumbo is also a great choice to transplant a smaller, well rooted Gro-Block. The New Grodan Improved! New density + new hydrophilic technology = better water distribution and root development. The uniform distribution of water and nutrients throughout the block allows for more efficient use of the entire substrate volume Full saturation of the blocks with no dry spots and improved EC control with less water is achieved in the rootzone due to the uniform, optimized wool resulting in a sustainable water and nutrient use. Improved “re-wettability” able to more easily increase water concentration in the substrate.

Sold as a Case of 64 Jumbo 6" x 6" x 4" Gro-Blocks.

Pargro Quick Drain™ (QD) blocks are up to 14% drier than Cultilene® Comfort blocks. Pargro QD slabs are up to 10% drier than our previous Neptune slabs. Jumbo is a particularly good choice when you want to use a big block in an ebb and flow system. If you want a drier top, then opt for the Biggie in your system, since capillary movement will generally not reach above 4” in a block on most flood tables.