I am interested in using Silver Carpet as a groundcover between pavers. I saw some at a house I was visiting and it had formed a dense carpet that you could step on, put heavy objects on, and it just bounced down and fluffed right back up. My questions:

* How densely should I make the initial planting of these? How many inches between plants?

* Will the plant spread through chicks or by seed?

* How many years for each doubling of plants?

I know it wants a fast-draining soil. Assuming I have a paver ditch in clay soil, that will have three inches of class 2 base rock for drainage at the bottom. Above the base rock, I will have three inches of a soil layer. I was thinking of placing between the pavers Turface hard-fired clay fines, which are a soil amendment used in Bonsai. But I am using the fines that are less than 1/16th of an inch because those will act more like a sand and stabilize the pavers (hopefully). The downside to using small particles that are less than 1/16th of an inch is that the soil will be very water retentive.

Maybe I should stick with larger Turface particles like the kind I filter out of Turface to use in succulent soil. That will not allow much of a perched water table but each particle absorbs a lot of water. The downside of using the larger Turface particles is that they will not pack tight, so the pavers would start to move around over time. I would appreciate advise on how to balance the requirement to the stabilize the pavers with the requirement to provide a fast draining soil.