3/23/2020 POLLI NATORS, CLI M ATE CHANGE, & YOUR GARDEN F R A N C E S F I S C H E R POLLI NATORS HONEY BEES 1
3/23/2020 SPECI ALI ST VS GENERALI ST PHENOLOGI CAL M I SM ATCH • A generalist species is able to thrive in a wide variety of environmental conditions and can make use of a variety of different food sources. • A specialist species can thrive only in a narrow range of environmental conditions or has a limited diet. YOUR GARDEN – PLANTI NG, M AI NTAI NI NG YOUR GARDEN, YARD, FARM • Try to have something that blooms all year • Native plants • Avoid ornamentals with inadequate nectar and pollen source • Have a diverse array for different pollinators • Try not to spray insecticides if possible • Be careful not to plant invasive, naturalizing weeds POLLI NATOR ATTRACTI NG PLANTS W I NTER-EARLY SPRI NG ( FEB-APRI L) • *Vine maple ( Acer circinatum ) • *Tall Oregon grape ( Berberis aquifolium , formerly Mahonia ) • *Camas ( Camassia spp.) • ~Crabapple ( Malus floribunda, *Malus fusca ) • ~Willow ( Salix spp.) • *Columbia Desert Parsley ( Lomatium columbianum ) • *Pungent Desert Parsley ( Lomatium grayi) *=native species ~=native species available (from the OSU Horticulture Department) 2
3/23/2020 POLLI NATOR ATTRACTI NG PLANTS POLLI NATOR ATTRACTI NG PLANTS SPRI NG-EARLY SUM M ER ( APRI L-JUNE) M I D-LATE SUM M ER ( JULY-SEPTEM BER) • *Western serviceberry ( Amelanchier alnifolia spp.) • Blue giant hyssop ( Agastache foeniculum and spp.) • Borage ( Borago officinalis ) • California poppy ( Eschscholzia californica ) • ~California lilac ( Ceanothus spp.) • *Oregon gumweed ( Grindelia stricta or integrifolia ) • ~Tickseed ( Coreopsis spp.) • *Sneezeweed ( Helenium autumnale) • ~Geranium ( Geramium spp.) – [ ~watch for shiny geranium • *Showy tarweed ( Madia elegans ) and herb Robert when at the nursery!~] • Catmint ( Nepeta x faassenii ) !! • *Globe gilia ( Gilia capitata ) • Russian sage ( Perovskia atriplicifolia ) • ~Lupine ( Lupinus spp.) • Phacelia ( Phacelia spp.) • ~Chokecherry ( Prunus virginiana ) • ~Stonecrop ( Sedum spp.) • ~Bee balm ( Monarda spp.) • *Milkweed ( Asclepias fascicularis, Asclepias speciosa ) • *Fire weed ( Chamerion angustifolium ) • *Buckwheats: sulfur flower buckwheat (Eriogonum umbellatum) arrowleaf/heartleaf buckwheat (E. • *Oceanspray ( Holodiscus discolor ) compositum), *=native species ~=native species available *=native species ~=native species available ~mint species can be very invasive, catmint is not, but watch for other mint species especially lemon balm~ POLLI NATOR ATTRACTI NG PLANTS POLLI NATOR W ATER SOURCE LATE SUM M ER – FALL ( SEPTEM BER-NOVEM BER) • Michaelmas daisy ( Aster amellus ) • *Goldenrod ( Solidago canadensis ) • *Asters: Douglas aster ( Symphyotrichum subspicatum ), Eaton’s aster (Symphyotrichum bracteolatum), Henderson’s aster (Symphyotrichum hendersonii), Oregon golden aster (Heterotheca oregona), roughleaf aster (Eurybia radulina), hoary aster (Dieteria canescens) • *Buckwheats: barestem buckwheat (E. nudum), tall woolly buckwheat (E. elatum) • *Hummingbird trumpet or California fuchsia (Epilobium canum) NESTI NG BEES HOVER FLY 3
3/23/2020 BEE HOUSES YOUR GARDEN – CLEAN UP Don’t be tidy! Structures Straws, tubes, wood with holes drilled in them, may need screen • Leave bare ground – avoid mulch and weed cloth • Leave the leaves • Can be a source for disease and parasites Need to be maintained and cleaned every year • • Leave the stems (cut at 18-20 inches) Emergence tub to empty the nest • • Gather stems and place out of the way • Pipe cleaners Half cup bleach per gallon • BEE LAW N • More drought tolerant, needs less fertilizer • Dutch white clover • Yarrow • Thyme (pink chintz) • Self heal (Prunella) • Roman Chamomile • English lawn daisy • Portland Lawn Seed COVER CROPS FOR HOM E GARDENS QUESTI ONS? ? ? • Flowering Cover crops such as crimson clover, buckwheat, vetch, alfalfa and mustard attract bees and beneficial insects 4
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