I have two areas with knockouts on bothsides. One with dark red and the other hot pink. Now after 5yrs a GROUP of BI-COLOR knockouts white and babypink swirled has growen between them! Any anwsers?
Knock Out has two color sports, or mutations, Pink Knock Out and Blushing Knock Out. Blushing is light pink. The white I have not seen or heard of occurring before. Knock Out, Pink and Blushing will also occasionally show blooms that are bicolored, light and dark, or striped, the sports are unstable. Mark the canes with the bicolored blooms and see if the bloom color repeats. If it does, you may have another sport.