Harvest when about 20 to 50% of the flowers are open. It is too late to harvest if some of the flowers are already changing color to dark pink.
This species can be held dry for up to 3 weeks at 33-34F in a vapor barrier lined container as long as it was pretreated with a fungicide to protect it from Botrytis and hydrated properly upon removal from storage.
This family is important economically for many edible fruits including guava, rose-apple, spices such as allspice and cloves, timber (eucalyptus) and many ornamental species.
While spraying foliage with water can reduce drying out, it also increases the chances for Botrytis growth.
Recent Research Findings:
Jones et al. (1993) noted that flower buds will not open in water but will open in a good flower food solution.