How can I remove the rockwool grow cube without damaging young roots?

johncrossman

johncrossman

Member
Hello. I recently purchased three young plants and each was rooted in its own rockwool grow cube. I could not find guidance on what to do with the cube. Do I remove it entirely before potting the plant or do I put the cube, as is, in the soil? I decided to NOT remove the cubes. I potted the plants with the cube intact. One plant is doing very well, the second is fine, and the third is struggling. Are the cubes holding on to too much water and stunting the growth of these plants?

What should I do? And what is the right approach in dealing with rockwool grow cubes?

These plants are growing outdoors in Berkeley, CA. The soil is Miracle-Gro all-purpose garden soil. No nutrients (yet). The plant is a sativa hybrid from PurpleCityGenetics.

Thank you for your time!
 

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BrassNwood

BrassNwood

Well-Known Member
johncrossman said:
Hello. I recently purchased three young plants and each was rooted in its own rockwool grow cube. I could not find guidance on what to do with the cube. Do I remove it entirely before potting the plant or do I put the cube, as is, in the soil? I decided to NOT remove the cubes. I potted the plants with the cube intact. One plant is doing very well, the second is find, and the third is struggling. Are the cubes holding on to too much water and stunting the growth of these plants?

What should I do? And what is the right approach in dealing with rockwool grow cubes?

These plants are growing outdoors in Berkeley, CA. The soil is Miracle-Gro all-purpose garden soil. No nutrients (yet). The plant is a sativa hybrid from PurpleCityGenetics.

Thank you for your time!
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Not a big fan of Miracle-Gro and I'd have used FFOF (fox farm ocean forest) or equivalent. Leave the cubes as removal will do extreme root damage and the plant will outgrow the cube soon enough. I've cloned in the 1.5 inch for more than 10 years.

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Start shopping for some BT Thuricide for the caterpillars as come the 1st of Aug you'll need to start spraying.
 
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