What do breeders do in winter?

The advantage of breeding in the North Eastern United States is that we can be certain that the plants we create are able to survive the cold, heat, humidity and disease pressure that nature throws at us each year. This winter has been an exceptionally tough winter. We’ve had more than 5 feet of snow in South Eastern PA with near record lows.New hybrids are tested in our rose evaluation field for a minimum of three years before being considered for market. If they can survive here they can survive anywhere. This is where we first tested The Knock Out® Rose and the rest of the Knock Out® Family of Roses. When it repeat bloomed from summer through fall and showed no sign of black spot after three years, we knew we had a winner. We continue to use these fields to make sure our roses will perform in your gardens.


Star® Roses and Plants employees share their unique horticultural perspectives.

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