Gather Herbs

Only in dry weather, preferable when the plant is in full bloom or the seeds getting ripe. In the early morning when thoroughly dry and kept dry in heavy brown paper bags they well keep for years. Collect flowers and stems when the flow is beginning to open. Leaves to be dried are picked on a summery morning after the dew. To dry leaves - spread on paper on a cookie sheet in preheated oven 100 degrees, leaving oven door part way open. About 15 minutes or until leaves are dry and brittle, remove from oven and cool before storing.
Roots ought to be dug in the fall after the roots and leaves are dead or have come to maturity; or they should be dug before they start in the spring.
They ought to be washed immediately after they are dug, or not washed at all.
All roots, when cleaned, ought to be put in a place where they well dry soon.
They should not be placed in the sun, as soon as they are perfectly dry they ought to be pack away and kept from the air as much as possible