A mineral from the mica family which can be used as a heat insulator or mulch for plants.

A plant that germinates, grows, flowers, produces seeds and in one growing season.

A green pigment found in plant cells that is essential to photosynthesis and is formed only in the presence of light.

Mixing the pollen of one flowering plant with another to create a hybrid.

A fancy name for plant tubers, rhizomes or root balls.

To remove excess buds from a plant leaving the remainder to grow bigger.

A lilac bloom is made of groups of small flowers with 4 or 5 blossoms on a single stem. Each individual flower is a floret.

Strong plants that are usually able to flourish outside all year round without special protection.

A high content of metallic minerals that contaminates soil, water or air and can affect normal growth in plants and animals.

A cluster of plants or roots with a pile of earth around it.