I'm interested in seeing if I am able to overwinter my two Rex Begonias. It's tricky because they need high humidity yet avoid water settling on the hairy leaves. Caution avoid dryness-- use a water-filled pebble tray, and probably daily misting but not on leaves. Amp up the humidity as much as possible. Water on the plant's leaves can produce spotting - so endeavor to keep the humidity even.

It's important to avoid temperature changes as well. Avoid temps below 60 degrees Fahrenheit - keep constant at moderate temperatures such as 60 to 70 degrees Fahrenheit.

During active growth (spring - summer) fertilize every two weeks, applying a quarter-strength or half-strength liquid fertilizer. Don't fertilize in the winter.

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