A low-lying area where frost occurs late in the season.

The downward movement of water and nutrients from the soil surface to the water table due to gravity.

The temperature at which the greatest or most rapid seed germination occurs for a particular vegetable.

Pesticide is ingested through a person’s mouth.

Growing vegetables in single or double rows with aisles between each row.

An organic fertilizer that has had potassium sulfate added.

Plants that protect neighbors by repelling pests.

Multi-celled organisms that reproduce by spores and rely on living or dead organic matter for food.

A soil that contains a high proportion of clay and is poorly drained.

A soil that contains a high proportion of sand.