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Horticulture/Annual versus perennial

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Question
Does an annual always die after a season? If I successfully overwinter a plant, does that prove that it is not an annual?

Answer
Hi Janet,

No and NO.  I have kept annuals going for 2 years at least.  That doesn't make them biennial. Some plants (like tomatoes for instance), are really perennial, but act like annuals where we grow them.  A Blackeyed Susan (Redbeckia sp) grown in Louisiana might seed and die in one year, but it might act like a perennial in Ohio where it's cooler and live several years.  
In Annuals, the dormant seed is the only bridge between generations.  Perennials propagate themselves by producing bulbs, divisions, etc., as well as seed.
Thanks,
Susan  

Horticulture

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Susan Tabor

Expertise

Entomology,plant pathology, agronomy, native plants, useful and edible plants,medicinal plants,landscape design and installation, plant taxonomy and identification, cultivars and varieties, Botany, nutrient deficiencies, plant recommendations and troubleshooting.

Experience

35 years as a professional horticulturist and landscape contractor. I have a network of contacts at leading universities and with acknowledged experts in the field. I've restored the landscapes of several plantations, 2 Governors mansions and owned/managed 3 nursery/garden centers. I discovered a new subspecies of Emelia in 1997. I've locally introduced several native or volunteer species into mainstream landscape design.

Publications
Morning Advocate The Register Better Homes and Gardens All Experts - Approx 1996-97

Education/Credentials
Louisiana State University - horticulture David L. Hoffman - California - phytotheraphy

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