Transferring thickly sown seedlings from the pot, pan, or seed tray in which they were sown into a larger container, giving them more space to develop. Primocanes

The use of gardening techniques to control pest populations.

Member of the species Brassica oleracea, including cabbage, broccoli, cauliflower, and Brussels sprouts.

A depression in the terrain into which cold air drains, but cannot escape, thereby subjecting plants to freeze injury. Fruiting wood

The egg-laying apparatus; the external genetalia of the female. Oxygen

The youngest roots with root hairs, important in absorption of water and minerals. Fertilizer

The stable, earthy smelling end-product of animal and plant decomposition.

The practice of interplanting different plant species to reduce pest problems or improve plant growth.

An application in which a material such as fertilizer or herbicide is applied in a narrow line along a row of plants or in a circle around individual plants. Biennial

The process of periodically putting soil around the stems of plants to encourage rooting and protect plant parts from the sun. Examples: Potato, leeks. Horticultural oil