Hardiness variablesfreeze duration

• Longer durations, especially at lower temperatures, may be more harmful

  • depends on species

• less regrowth from 24-48 hrs at each temperature vs 1/2 or 2 hrs

  • Dianthus (Vampire), Geranium (Cambridge) (Bruce)

• no differences between 1/2 and 2 hrs

  • 7 cvs. (Bruce, Herrick, Perry)

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