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The North Carolina State Beekeepers Association

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Flowering Plants

Flowering Plants

Information on common floral sources in North Carolina.

Mountain Region Average Mountain Bloom Period
Pollen
Plant Name Scientific Name Starts Days Ends
Red Maple Acer rubrum 5-Mar 35 9-Apr C0B095
Sumac Rhus spp. 8-Apr 146 1-Sep F6BB43
Dandelion Taraxacum officinale 1-May 50 20-Jun F29D4B
Black Gum Nyssa sylvatica 5-May 10 15-May F7DC6F
Holly Ilex spp. 8-May 15 23-May F7DC6F
Black Locust Robinia pseudoacacia 15-May 14 29-May DAF7A6
Raspberry Rubus spp. 17-May 17 3-Jun DCDCDC
Persimmon Diospyros virginiana 22-May 15 6-Jun FAD749
Tulip Poplar Liriodendrum tulipifera 25-May 23 17-Jun FCF3CF
Ladino, White  Clovers Trifolium repens 29-May 51 19-Jul 859D6C
Sweet Clover Melilotus spp. 8-Jun 53 31-Jul
Basswood, Linden Tilia spp. 20-Jun 23 13-Jul FFCE19
Sourwood Oxydendrum arboreum 25-Jun 25 20-Jul FCF3CF
Aster Aster spp. 30-Aug 40 9-Oct F8CD76
Piedmont Region Average Piedmont Bloom Period
Pollen
Plant Name Scientific Name Starts Days Ends
Red Maple Acer rubrum 1-Feb 40 12-Mar C0B095
Sugar Maple Acer saccharum 5-Mar 25 30-Mar DAF7A6
Dandelion Taraxacum officinale 15-Mar 60 14-May F29D4B
Sumac Rhus spp. 3-Apr 151 1-Sep F6BB43
Alsike Clover Trifolium hybridum 4-Apr 102 15-Jul
Blackberry Rubus spp. 10-Apr 20 30-Apr D3D3D3
Crimson Clover Trifolium incarnatum 10-Apr 25 5-May
Ladino, White Clover Trifolium repens 14-Apr 102 25-Jul 859D6C
Tulip Poplar Liriodendrum tulipifera 25-Apr 29 24-May FCF3CF
Black Gum Nyssa sylvatica 26-Apr 14 10-May F7DC6F
Black Locust Robinia pseudoacacia 27-Apr 10 7-May DAF7A6
Vetch Vicia spp. 28-Apr 46 13-Jun
Holly Ilex spp. 30-Apr 15 15-May F7DC6F
Raspberry Rubus spp. 30-Apr 20 20-May DCDCDC
Privet Ligustrum spp. 8-May 23 31-May DAF7A6
Persimmon Diospyros virginiana 20-May 13 2-Jun FAD749
Sweet Clover Melilotus spp. 28-May 37 4-Jul
Sourwood Oxydendrum arboreum 10-Jun 20 30-Jun FCF3CF
Heartsease, Smartweed, Knotweed Polygonum spp. 4-Jul 126 7-Nov FCF3CF
Goldenrod Solidago spp. 8-Aug 67 14-Oct FAD749
Aster Aster spp. 25-Sep 35 30-Oct F8CD76
Coastal Region Average Coastal Plain Bloom Period
Pollen
Plant Name Scientific Name Starts Days Ends
Red Maple Acer rubrum 20-Jan 45 5-Mar C0B095
Sugar Maple Acer saccharum 25-Feb 25 21-Mar DAF7A6
Blackberry Rubus spp. 1-Mar 46 16-Apr D3D3D3
Dandelion Taraxacum officinale 5-Mar 55 29-Apr F29D4B
Sumac Rhus spp. 1-Apr 153 1-Sep F6BB43
Huckleberry Gaylussacia spp. 5-Apr 32 7-May
Tulip Poplar Liriodendrum tulipifera 17-Apr 30 17-May FCF3CF
Tupelo Gum Nyssa aquatica 20-Apr 30 20-May
Raspberry Rubus spp. 20-Apr 40 30-May DCDCDC
Holly Ilex spp.   24-Apr 16 10-May F7DC6F
Black Gum Nyssa sylvatica 27-Apr 24 21-May F7DC6F
Gallberry Ilex glabra & coriacea 12-May 28 9-Jun DAF7A6
Sourwood Oxydendrum arboreum 1-Jun 20 21-Jun FCF3CF
Pepperbush Clethra alnifolia 1-Aug 20 21-Aug F7DC6F
Goldenrod Solidago spp. 1-Aug 85 25-Oct FAD749
Aster Aster spp. 30-Sep 40 9-Nov F8CD76

A few notes on plants. Consider all information presented here as approximate. Plants are COMPLICATED. Species within a genus may differ wildly in their pollen colors and blooming times, despite being apparently identical plants. Weather and microclimate may entirely alter bloom time to what is normally expected.

Pollen shown white without a number means the color is unknown. The numbers refer to hex codes, useful for displaying color electronically. Colors (again approximate) were compiled from

  • https://en.wikipedia.org/wiki/List_of_pollen_sources
  • http://www.sheffieldbeekeepers.org.uk/tools/pollen-chart/
  • Garden Plants for Honey Bees, P. Lindtner. Wicwas Press, Kalamazoo MI, 2014.
November 24, 2022

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