The best substitute for dill weed include fresh fennel, tarragon, or lemon thyme. There are six systems currently being used on Australian farms and they have been initially developed by farmers. Germination of a sample of 20 seeds from each strain was induced by placing them in a moist cocofibre vermiculite 3 1, v v potting medium and incubating at 23 25 C for 20 days under supplemental lighting. Source: https://weedseedsarea.com/purchas....ailable