ANNUAL WINTER TEMPERATURE GUIDE

 

Since many of us grow gesneriads outside, here is a quick reference guide to plant hardiness as it relates to winter temperatures.

 

Note that his is just a general guide to plant hardiness.

  Your own growing conditions should be taken into consideration:

  wind, how sheltered the plants are, whether they are in pots or in the ground, etc.

55º:  Chrysothemis, most Episcia, Nautilocalyx

50º:  Alloplectus, Columnea, Rufodorsia, Seemannia

45º:  Achimenes, Drymonia, Eucodonia, Gesneria, Gloxinia perennis, Kohleria, Smithiantha

40º:  Aeschynanthus, Codonanthe

35º-40º:  Petrocosmea, some Primulina, Sinningia, Streptocarpus

Light Frost:  Alsobia, Seemannia nematanthodes, Seemannia sylvatica, Nematanthus

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