Growing Degree Days 2020

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Northern Kentucky Growing Degree Day Events For 2020


Silver Maple – Acer saccharinum   first bloom 34
Corneliancherry Dogwood – Cornus mas   first bloom 40
Silver Maple – Acer saccharinum   full bloom 42
Red Maple – Acer rubrum   first bloom 44
Speckled Alder – Alnus incana ssp. rugosa   first bloom 52
Northern Lights Forsythia – Forsythia x intermedia   first bloom 58
Japanese Pieris – Pieris japonica   first bloom 60
Red Maple – Acer rubrum   full bloom 75
Star Magnolia – Magnolia stella   first bloom 83
*** White Pine Weevil – Pissodes strobi   adult emergence 84 ***
Border Forsythia – Forsythia x intermedia   first bloom 86
*** Eastern Tent Caterpillar – Malacosoma americanum egg hatch 92 ***
Manchu Cherry – Prunus tomentosa   first bloom 93
Northern Lights Forsythia – Forsythia x intermedia   full bloom 94
Speckled Alder – Alnus incana   full bloom 97
Corneliancherry Dogwood – Cornus mas   full bloom 98

Northern Kentucky Current Growing Degree Days as of  03/26/2020 113

Next Events:

Norway Maple – Acer platanoides first bloom 116

Border Forsythia – Forsythia x intermedia full bloom 116

Chanticleer Callery Pear – Pyrus calleryana first bloom 123

Sargent Cherry – Prunus sargentii first bloom 127

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