Organic fertilizer—A fertilizer made from previously living matter or from animal waste. Common organic fertilizers include cottonseed meal, bone meal, dried blood, sewage sludge, animal manure, and compost.

Organic material—Any material that can be incorporated into the soil to improve its condition and was at one time a living substance. Peat moss, bark, compost, and manure are examples.

Ornamental tree—Small tree used more for decorative purposes than for shade. Normally used for color (flowers or colorful foliage) or for small areas or courtyards.