Calibrachoa likes moist, well-draining soil and prefers full to part sun. It is happy in summer and fall gardens in almost any USDA growing zone but is only winter hardy in zones 9-11. In these milder climates, calibrachoa may be grown as a perennial, but it is otherwise mostly planted as an annual. They are day-neutral, meaning that they cheerfully display their blossoms all season long no matter how many hours of sunlight occur each day.
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