The butterfly and worm remain friends forever. Full-color illustrations are done by author Maureen Grealish. Barnes and Noble Booksellers. The addition of green sand to soils keeps cropping up in various gardening information, everything from lawn to vegetable care. It is a mineral mined from natural deposits of glauconite in the southern part of New Jersey.
Greensand is marketed as a soil conditioner.
Greensand is best incorporated into the soil before seeding or planting.