| Common name | Latin name | Blooming months | Pollen color | Availability | Source for honeybees |
|---|---|---|---|---|---|
| Maple |
Acer spp. | Feb - Apr | light yellow | feral | fair |
| Manitoba Maple (Box elder) |
Acer negundo | Feb - Apr | light olive | feral | good |
| Norway
maple |
Acer platanoides | Apr - May | yellow green, olive | feral | fair |
| Red
Maple |
Acer rubrum | Mar - Apr | grey brown | feral | |
| Grey Alder |
Alnus incana | Feb - Apr | brownish yellow | feral | |
| American
Chestnut |
Castanea dentata | May - Jun | mostly ornamental | ||
| American Hazel | Corylus americana | Mar - Apr | light green | feral and ornamental | fair/good |
| Sweet
Chestnut |
Castanea sativa | May | feral | good | |
| Common Hackberry | Celtis occidentalis | Apr - May | feral | ||
| Flowering Quince | Chaenomeles japonica, Chaenomeles lagenaria, Chaenomeles speciosa 'Nivalis', Chaenomeles x superba | Apr - May | feral | good | |
| Hawthorn |
Crataegus spp. | Apr - May | yellow brown | feral | fair |
| White
Ash |
Fraxinus americana | Apr - May | |||
| Honey Locust |
Gleditsia triancanthos | May - Jun | feral | ||
| American holly |
Ilex opaca | Apr - Jun | feral | ||
| Walnut | Juglans spp. | Apr - May | cultivated | fair | |
| Tulip-tree | Lirodendron tulipifera | May - Jun | feral and ornamental | good | |
| Crab Apple | Malus spp. | Mar - Jun | light olive | ornamental | |
| Apple |
Malus domestica, Malus sylvestris | Apr - May | yellow white | cultivated and ornamental | very good |
| American Sycamore | Platanus occidentalis | Apr - May | light olive | feral | |
| Plum | Prunus spp. | Apr - May | light grey, grey | ornamental and cultivated | |
| Almond | Prunus amygdalus | Feb | light brown to brown pollen - not considered a good pollen source but bees are the primary pollinator | cultivated mostly in California | fair |
| Wild Cherry |
Prunus avium | Apr - May | yellow brown, light brown | feral | very good |
| Cherry Plum | Prunus cerasifera | light brown to brown | feral | fair | |
| Sour Cherry | Prunus cerasus | Apr - May | dark yellow | ornamental and cultivated | very good |
| Peach | Prunus persica | Apr - May | redish yellow | ornamental and cultivated | good |
| Black Cherry |
Prunus serotina | Apr - May | feral | minor | |
| Blackthorn | Prunus spinosa | feral | good | ||
| Pear | Pyrus communis | Apr - May | red yellow | ornamental and cultivated | good |
| Oak | Quercus spp. | May | feral | ||
| Oak | Quercus robur, Quercus pedunculata | May | light olive | feral | minor |
| Black Locust | Robinia pseudoacacia | May - Jun | feral | ||
| Blackberry | Rubus spp. | May - Jun | light grey | feral and cultivated | excellant |
| Raspberry | Rubus idaeus | May - Jun | feral and cultivated | good | |
| Willow |
Salix spp. | Feb - Apr | lemon | feral | good |
| White
Willow |
Salix alba | feral | good | ||
| Goat
Willow |
Salix caprea | Mar - Apr | feral | very good | |
| Violet Willow | Salix daphnoides | Mar - Apr | feral | very good | |
| Pussy Willow | Salix discolor | Mar - Apr | feral and ornamental | ||
| Basket Willow |
Salix purpurea | Mar - Apr | feral | very good | |
| Silky leaf osier, Smith's
Willow |
Salix x smithiana | Apr - May | very good | ||
| American mountain
ash |
Sorbus americana | May-Jun | feral | ||
| American Elm |
Ulmus americana | Feb - Apr | light grey | feral | |
| Winged Elm |
Ulmus alata | Feb - Mar | pale yellow | feral | good |
| Europea field elm | Ulmus americana | feral | good |