All kinds of herbs should be gathered on a dry day, just before, or
while in blossom. Tie them in bundles, and suspend them in a dry, airy
place, with the blossoms downwards. When perfectly dry, wrap the
medicinal ones in paper and keep them from the air. Pick off the leaves
of those which are to be used in cooking, pound and sift them fine, and
keep the powder in bottles, corked up tight.