Tropicals & Tender Perennials: Culebra: Kinda cute!, 1 by Kell

Kell wrote:
You reminded me my little Culebra is out in the storm. I need to run out and move it to the hoophouse. Yours are looking so good. Those are huge blocks of rockwool, Sherry. Have you rooted a lot of cuttings in rockwool?

If they have been cut for a while they have self sealed. I do not think putting anything on now would do much except maybe seal in pathogens.

Why don't you try one one way and the other the other way and see which does best for you? And then you have still have a 3rd!