Species

*

Date

GDD

Date

GDD

*

*

5/9/2005

221

5/10/2005

243

Forsythia intermedia

Border forsythia

E

Forsythia suspensa

Weeping forsythia

E

Pyrus calleryana

Bradford pear

D

Amelanchier canadensis

Serviceberry

E

Magnolia 'Ann'

D

Magnolia 'Elizabeth'

D

E

Prunus subhirtella pendula

Weeping Higan cherry

D

Magnolia soulangiana

Saucer magnolia

E

Acer platinoides

Norway maple

E; seeds formed

Chaenomeles speciosa

Flowering quince

E

Rhododendron PJM

PJM rhododendron

E

Cercis canadensis

Redbud

C

Viburnum carlesii

Koreanspice viburnum

D

Prunus serrulata

Japanese flowering cherry

D

Amelanchier grandiflora 'Strata'

E

Syringa vulgaris

Common lilac

B

C

V. juddii

Judd viburnum

D

V. burkwoodii

Burkwood viburnum

C

Malus floribunda

Japanese flowering crabapple

D

Malus sargentii

Sargent crabapple

C

Viburnum 'Mohican'

C

V. prunifolium

in bud

norway, blue, white spruce

Bud caps

splitting

camperdown elm

Leafminer adults

on foliage

Douglas- fir

Cooley gall adelgid nymphs

on needles

European whitebirch

Aphids- Euceraphis betulae

feeding on foliage

European larch

Adelgids- Adelges laricis

1st-2nd instar

weeping willow

Import. willlow leaf beetles

mating

birch

leafminer adults

on foliage

Aesculus pavia

Red buckeye

A

Aesculus flava

Yellow buckeye

B

Aesculus hippocastanum

Horsechestnut

C

Key
A- 5% or less flowers open “first bloom”
B- >5% to <95% “early bloom”
C- 95% or more flowers open –“full bloom”
D- flowers dropping- “late bloom”
E- done blooming