Sowing in trays or pots is also a good idea for rare or expensive seeds that it is necessary to keep an eye on, and for those herbs whose seedling appearance may be unfamiliar. To have seeds germinate at a time of our choosing it is necessary to simply supply the conditions which would trigger germination in their natural state. Usually this means moisture and warmth, and later, light and ventilation. For each herb seed it is a question of learning the right balance. Start with a clean seed tray or pot. Sterilize used containers in a disinfectant if you suspect there may have been any disease in the previous oil or plant occupants. Buy a seed compost or make your own by mixing two parts sterilized loam (rich garden soil), one part fine peat and one part coarse sand with a dash of fertilizer. As most seed contains enough food to get the seedlings started, the dash is only necessary to tide them over until they are transplanted. Blend the mixture well and shake through a 3/8 in (8 mm) sieve. A shallow tray that is 2 in (5 cm) deep is best for small seeds though any pots are acceptable. Add your compost to within ¼ in (6 mm) of the top. Give the container a sharp tap to settle the soil and then press gently with a flat board or lid. This should leave your final soil level about ½ in (12 cm) from the rim. A tray-or pot – sized board with a grip handle on the top is something a child could construct in a woodworking class and would be valuable luxury for a keen gardener.
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