313 Heirlooms vs. Hybrids. Battling Aphids in Trees.

What is the definition of an heirloom vegetable, such as an heirloom tomato? It depends who you ask. It’s kind of like the word “natural”: it has no legal definition. "Heirloom vegetable" could mean: a) a plant that reproduces true from seed; b) it's an old variety; and/or c) it's a traditional family seed, passed down through the generations.And what exactly is a hybrid tomato of a hybrid vegetable or flower? Our resident horticulturist, Debbie Flower, will help settle any confus...