Cut off the entire plant and hang in a ventilated room. When dry, pluck the leaves from the stems and store in airtight jars out of direct light. It is easy to bring container-grown plants inside, but you also can pot up a few plants from the garden. Plant herbs when the temperatures are in the 70s. Most herbs can't take frost.
Herbs grow best in an open, friable soil.
If the plants struggle, they become bitter. Herbs do best when sown directly into the soil rather than as transplants. Herbs grow best with at least six hours of sunlight a day. Herbs must be thinned. Pinch back the plants as they grow to keep them bushy.