Me too. Attractive and reflects some light. Keeps the soil moist and adds potassium into the soil. Aerates if mixed in like perlite. Cheap.
So today I am going to add a few more pics just for Lefty ( @lefthandseeds ) the idea being he sent me these to grow out with the idea I report on it. So here we go.
The two older ones and the apex cuts that go with them. They had leaves picked up above the cup rim this am. One did not have a dome last night…the other did. About 8 days for each.
And then the 3 newer ones that are getting close to me taking that apex cut to flower.
And of course there is Speck.