MORTON® AGRICULTURAL SALT BLOCKS Brand_Wiley X This agricultural-grade magnesium sulfate heptahydrate

This agricultural-grade magnesium sulfate heptahydrate (MgSO4•7H2O) is an extremely soluble and bioavailable source of magnesium and sulfur for the health of animals and plants

Optimum solubility needed to make true clear solutions and compatible with other soluble nutrients

it’s biodegradable and compostable

the Perky-Pet® Sugar Maple Top-Fill Glass Hummingbird Feeder is a favorite of birders and hummingbirds alike

MORTON® AGRICULTURAL SALT BLOCKS Brand_Wiley X This agricultural-grade magnesium sulfate heptahydrateMortons plain or white salt blocks are compressed from vacuum granulated salt, fine solar salt or fine rock salt. The appearance is white to crystalline with a smooth glossy surface. There are no additives. Plain agricultural salt blocks are used primarily for animal feeding.