SOIL PREPARATION

To prepare soil for growing herbs, start in early spring before planting. Dig the soil to a depth of about one foot and thoroughly clear it of rocks, weeds and debris. Break down solid clods of soil to increase air spaces and improve drainage.

Average garden soil with good drainage and a porous, crumbly texture plus a moderate amount of organic material will usually support a productive herb garden. To provide optimum growing conditions for an individual herb, check its soil requirements.

Improve and enrich the soil by working in organic amendments such as compost, rotted manure, leaf mold, lawn clippings, and other humus-building materials. Amendments lighten and aerate heavy clay soil and add organic matter to improve water retention of sandy soil. They will also create an environment in which microorganisms can flourish. Microorganisms break down the organic matter, releasing nutrients the plant roots absorb. Mix the amendments into the soil thoroughly.

Water well and allow the soil to settle after amending and before sowing seeds or planting seedlings. After planting, spread a thin layer of compost over seeds and around transplants.

Once herbs are established, allow them to dry out between waterings. This keeps roots from rotting. Correct drainage problems by adding organic amendments. If the soil is too difficult to correct, consider installing a raised bed(s) filled with improved soil.

For container gardening, use sterilized soil in good condition. Use garden soil only if it has been cleared of weeds and insects and is light enough to allow good drainage in a confining pot. To be sure of clean soil, purchase bags of ready-mixed all-purpose soil.