Chick Grit

[Jim McClements, Dover, DE z6]

Our local Agway has two sizes of grit, "starter" and "grower". The latter is
coarser and I use it for top-dressing on almost all seed pots and occasionally
in a potting mix.

It's possible that the finer, starter grit might be better for storing small
tubers, since it might have more surfaces for the moisture to adhere to, but I
haven't used grit for that purpose, preferring the turface/promix combo.

Jim McClements