The Vegetable Garden

Glossary - T-Z

Article Index
All Pages

Tassel – The structure at the tip of the corn plant, which is the male flower.

Topsoil – The uppermost and the darkest layer of the soil that contains most of the organic matter, living organisms and plant roots.

Toxicity – Inherent capacity of a material to produce death or injury.

Transplanting – Shifting of a plant from one soil or growth medium to another.

Trap crops – Plants that attract insect pests keeping them away from the vegetable crop.

True-to-type – The plants are actually the vegetable and variety the label indicates.


Unmixed fertilizers - Fertilizers that contain only one plant nutrient


Variety – A botanical subdivision within a species.

Vermiculite – Lightweight expanded mica often used in soil-less media.

Viability – The percentage of seed that will germinate.

Vine crops – Crops that produce vines that grow along the ground including watermelon, muskmelon and pumpkins.

Virus – Particles containing DNA or RNA that are much smaller than bacteria and require a host cell to multiply.


Warm season – Vegetables that germinate and grow best when temperatures are warm.

Waterlogged – The air spaces in the soil are filled with water.

Wheel hoe – An oscillating or stationary hoe blade mounted on a wheel with handles.

Winter annuals – Germinates during the fall, overwinters and produces seed during the spring.

Winter melons – Melons that have a smooth rind surface, do not separate from the vine when ripe and lack a distinctive flavor.

Winter squash – A squash whose fruit are harvested when uniform in color and rind is hard.


Zucchini – A squash whose fruit is harvested immature, have a green colored skin and are long cylindrical-shaped with little or no taper.