Another easy way to multiply herbs is to divide large, established plants. Three types of herbs can be propagated by division: (1) herbs that form bulbs, cloves, or corms (such as chives and saffron); (2) herbs that creep (such as mint, oregano, and sweet woodruff); and (3) herbs that form clumps (such as germander, catnip, and lemon balm). At the beginning of the growing season (for peak- or end-of-season bloomers) or at the end of the growing season (for early season bloomers), use a garden fork to carefully dig up an entire plant. Gently separate the roots into smaller sections. Each new, small plant should contain a good set of roots and some strong, healthy shoots. Replant these immediately, or store bulbs, corms, or tubers in a cool, dry spot for planting later.
Herbs that creep, clump, or form bulbs are easy to multiply by division.
STEP 1: To start new chive plants, use a garden fork to lift the roots of a 3- to 4-year-old plant.
STEP 2: Carefully separate the plant into smaller sections, each with healthy roots and shoots.
STEP 3: Replant the divisions immediately, then water well.