Attracting Pollinators to Your Garden Using Native Plants
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Attracting Pollinators to Your Garden Using Native Plants Rufous Hummingbird feeding on Orange Honeysuckle (Lonicera ciliosa)
Native Plant and Pollinator Why Should We Care? Gardening Guide Many of us enjoy the beauty of flowers in our Keystone Species backyard and community gardens. Growing native When a bumble bee feeds on the nectar and pollen of plants adds beauty and important habitats for huckleberry flowers, it pollinates the flowers, which will wildlife, especially for pollinators. Even a small produce fruit eaten by songbirds, grizzly bears, and backyard garden can make a big difference. Gardening dozens of other animals, including humans. We call connects us to nature and helps us better understand the bumble bee and other pollinators keystone species how nature works. This guide will help you create a because they are species upon which others depend. Insects and other pollinator-friendly garden. animals pollinate Pollinators are vital to maintaining healthy ecosystems. They are essential for plant reproduction, one-third of the What is pollination? food we eat – all What do and produce genetic diversity in the plants they pollinate. kinds of fruits, Pollination is the process of moving pollen from one hummingbirds, The more diverse plants are, the better they can weather vegetables, grains, butterflies and flower to another of the same species, which produces changes in the environment. nuts, and beans. bees have in fertile seeds. Almost all flowering plants need to be Even coffee and common? pollinated. Some plants are pollinated by wind or water, Best of all, pollinators such as hummingbirds, bees, chocolate! The They all pollinate and some are even self-pollinating. However, most and butterflies are beautiful and fascinating. economic value of flowering plants. insect pollination flowering plants depend on bees, worldwide has Pollinators need our help. butterflies, and other animals been estimated at for pollination. Biologists fear several butterfly and bumble bee $217 billion. species have disappeared from parts of their range, Why use native plants in your garden? including the once common western bumble bee. Pollinators have evolved with native Why are pollinators in trouble? It appears plants, which are best adapted to the local that habitat loss and pesticide growing season, climate, and soils. Most poisoning account for much of pollinators feed on specific plant species — the population declines. hummingbirds sip nectar from long, We can do our part to tubular honeysuckle flowers, while green support pollinators by sweat bees prefer more open-faced sunflowers. creating pollinator- Non-native plants may not provide pollinators with friendly gardens and enough nectar or pollen, or may be inedible to protecting wildlife butterfly or moth caterpillars. habitat. Western Bumble Bee on Maximilian Sunflower (Helianthus maximiliani) Half-black Bumble Bee and penstemon flower 1 2
Who Are Our Pollinators? Social Bees Bees, butterflies, moths, hummingbirds, beetles, Bumble Bee (Bombus) wasps and even flies pollinate flowers, but bee species There are forty-seven species of bumble bees in Tongue lengths pollinate flowers more often than any other group, vary in bee North America. Bumble bees are the B-1 bombers of bees. species. Long including birds and butterflies. Because of their chunky size, they can fly in cooler tongues fit long, Pollen temperatures and at lower light levels than many other basket tubular flowers Busy as a Bee bees including the honeybee. Thus, queen bumble bees like penstemons Bees are by far the most effective pollinators because and short tongues are the earliest to emerge in spring in search of the first fit short-tubed they feed only on flowers. Flowers attract and reward bees flowers of the season. for their pollination service. Bees gather two kinds of foods Bumble bees groom flowers like pollen from their sunflowers. Lifestyle: An individual queen starts a colony in the spring from flowers: sugar-rich nectar to fuel their flight and body hairs into after she wakes from hibernation. She produces wax from protein-rich pollen, or bee bread, to feed their young brood. “pollen baskets,” glands in her body to make pot-like cells in which to lay or corbicula, for Bees use their tongues to lap or lick up nectar from flowers. her eggs and to store nectar and pollen for her brood. transport to the Bees are a diverse group of insects that include four The young emerge in a few weeks as female worker bees. nest. thousand species native to North America. They can be As fall arrives, most bees die and only newly-mated queens organized into two groups based on their nesting lifestyle: overwinter to establish new colonies. solitary or social. About three-quarters of native bees in The European North America are solitary nest builders. Honeybee GARDENING Golden currant, serviceberry, and (Apis mellifera) chokecherry flower early in March and attract bumble is a social bee. bees and mason bees. Nesting Lifestyles Half-black Bumble Bee (Bombus vagans) on Tomatoes, Rocky Mountain Bee Plant peppers, and (Cleome serrulata) cranberries require a special bumble bee behavior called “buzz Solitary leaf-cutter Social nesting pollination”, in bee (Megachile) nest bumble bee (Bombus) which the bumble bee grabs the flower in her jaws and vibrates her GARDENING Bees prefer blue, purple, and yellow wings to dislodge flowers, and sweet fragrances. They see ultraviolet pollen trapped colors – found on the flowers such as buttercups and in the flower’s anthers. black-eyed Susans. 3 4
Solitary Bees Solitary Bees Green Sweat Bee Orchard Mason Bee (Osmia lignaria) (Agapostemon) These robust, metallic blue bees most commonly Green Sweat Bee (Agapostemon) These small, appear early in spring when trees and shrubs flower. brilliantly Females carry pollen on the undersides of their abdomens. colored, metallic Lifestyle: Orchard Mason bees build nest cells in green bees are hard pre-existing narrow tunnels such as beetle burrows in Leaf-cutter Bee to miss in a garden. trees, crevices between stones, hollow centers of plant (Megachile) They’re commonly stems and abandoned wasp or bee nests. In the nest called sweat bees because they land on tunnel, the female builds a series of horizontal chambers Mason bee houses people to lick up salty human sweat. Green Sweat Bee provisioning each with pollen, like this are used (Agapostemon) to attract these Lifestyle: Some sweat bees nest socially, on Gaillardia nectar, and an egg and then important pol- but most are solitary ground-nesters. (Gaillardia aristata) seals the chamber with mud. linators. (need Much of what we know about the social By the end of summer, the caption) behavior among insects has been learned from sweat bees bee will transform into an A female because they show different degrees of sociality. In some adult in its cocoon and Leaf-cutter Bee will cut circular species, females build and nest alone; in others, females overwinter in the chamber leaf pieces to line nest communally and share a common nest entrance but until it emerges in spring. Orchard Mason Bee her nesting construct individual nest cells (like apartment buildings.) (Osmia lignaria) chambers. If you see a bee Leaf-cutter Bee (Megachile) carrying pollen on These pugnacious bees carry pollen on its belly or hind GARDENING legs, it’s a female their tummies. Leaf-cutter bees and other Important pollinators of bee. solitary bees seldom sting. fruit trees, just 250 mason Lifestyle: They construct their nests bees can pollinate an acre in tunnels in the ground, under of apple trees. It would take stones, or in existing holes 10,000-250,000 honeybees in dead wood. A female to do the same work. bee cuts circular leaf pieces Mason bees like Penstemon, to line her nest chambers, Astragalus, and native flowering trees such as which are shaped like chokecherry, hawthorn, Leaf-cutter Bee thimbles end to end. In each, and serviceberry. (Megachile) on she lays an egg and provisions it with Hairy Golden pollen and nectar for her eggs. Aster (Chrysopsis villosa) Orchard Mason Bees (Osmia lignaria) GARDENING Green sweat bees and leaf-cutter bees on Wilcox’s Penstemon (Penstemon Wilcoxii) 5 like composites – Erigeron, Gaillardia, sunflowers, and asters. 6
Planning your garden – Bee Patient. It takes time for native Bee Gentle. Most bees will avoid stinging and use that behavior only in self-defense. Male bees do not sting. think like a pollinator. plants to grow and for pollinators to find your garden, especially if you live far from wild lands. Go Native. Pollinators are “best” adapted to local, native Bee Bountiful. Plant big plants, which often need less patches of each plant species water than ornamentals. (better foraging efficiency.) Bee Showy. Flowers should bloom in your garden throughout the growing season. Plant willow, currant, and Oregon grape for spring and aster, rabbit brush and goldenrod for fall flowers. Bee Chemical Free. Pesticides and herbicides kill pollinators. Bee Sunny. Bee Homey. Make Provide areas with small piles of branches sunny, bare soil that’s to attach chrysalis or cocoons. dry and well-drained, Provide hollow twigs, rotten logs preferably with with wood-boring beetle holes and south-facing slopes. bunchgrasses and leave stumps, old rodent burrows, and fallen plant material for nesting bees. Leave dead Bee Friendly. or dying trees for woodpeckers. Create pollinator- friendly gardens Bee Aware. Observe both at home, at pollinators when you walk schools and in public Bee a little messy. Most outside in nature. Notice parks. Help people of our native bee species which flowers attract learn more about (70%) nest underground so bumble bees or solitary pollinators and bees, and which attract native plants. Bee Diverse. Plant a diversity of flowering species with avoid using weed cloth or abundant pollen and nectar and specific plants for feeding heavy mulch. butterflies. butterfly and moth caterpillars. 7 8
Butterflies Butterflies By growing a bounty of native Silvery Blue (Glaucopsyche lygdamus) Butterfly flowering plants in your garden, Adult Silvery Blue butterflies appear from the end of you can attract a variety of the April to September. Male butterflies can often be seen more than 220 butterfly puddling, which is sipping up soil salts and minerals in species found in Montana. mud puddles. Two-tailed Tiger Swallowtail Lifestyle: Female blue butterflies (Papilio multicaudata) lay eggs only on lupine and once Ants tend and This large butterfly (up they hatch, the caterpillars eat protect Silvery to 6” wingspan) can be the leaves, flowers, and seedpods. Blue caterpillars, found from May They produce a sugary secretion, which reward them with through August. or honeydew, which is eaten honeydew. Males can often be by ants. seen patrolling for females along streams, canyons and narrow roadways. Lifestyle: A good pollinator garden Silvery Blue (Glaucopsyche contains food not just for adult lygdamus) butterflies, but for their caterpillars too. Butterflies and Two-tailed Tiger larva feeding on Swallowtail Female butterflies select specific plants on which to lay Silvery Lupine (Papilio their eggs; this ensures that when their eggs hatch, the (Lupinus multicaudata) caterpillars will be able to eat the plant’s leaves while argenteus) on Western growing into adult butterflies. Two-tailed Tiger Serviceberry (Amelanchier Swallowtails lay their eggs on ash and alnifolia), its chokecherry leaves. larval plant. GARDENING Butterflies favor platform-shaped sunflowers and asters, but will feed on a diversity of nectar-rich flowers from violets to serviceberry shrubs. They prefer red, purple, or yellow flowers with sweet scents. Butterflies love warm, sunny, and windless weather. GARDENING Blue butterflies feed on nectar from red-osier dogwood, When disturbed, a swallowtail caterpillar rears up and extends two red horns (osmeteria) from chokecherry and other flowers. its head to frighten off potential predators. The larvae feed on lupine. 9 10
Moths Hummingbirds Can you tell a Montana may have as many as 1,800 species of Because hummingbirds specialize on nectar feeding, Rufous, Calliope, butterfly from moths. The exact number is unknown because these they play an important role in pollination. These and Black-chinned a moth? hummingbirds night-flying pollinators often evade detection. colorful, migratory birds serve as a link between breed in Montana. Butterflies are brightly colored plant populations by visiting flowers and White-lined Sphinx Moth (Hyles lineata) moving pollen over great distances. and moths are more often colored in Although many moth species pollinate flowers, the muted grays and sphinx or hawk moth is probably the one most familiar Rufous browns. Hummingbird because it’s active by day. Lifestyle: They’re great flyers and some have tongues A tiny jewel of longer than their bodies. These large moths fly upwind, a bird, the Rufous tracking the airborne fragrance trail to a cluster of flowers. Hummingbird fiercely Their caterpillars, called defends its feeding areas tobacco and tomato and will attack much hornworms, are well larger birds including A butterfly Great Horned known to gardeners. antenna (top)is a single filament Owls. with a club at the Lifestyle: tip, while a moth Rufous antenna (bottom) can be broad Hummingbirds nest and feathery or in willow-dominated tapered to a point. areas within forested habitats. GARDENING To attract hummingbirds White-lined to your garden, provide them with nectar Sphinx Moth and larvae starting in early spring. It’s thought that Male Rufous (Hyles lineata) hummingbirds prefer red-colored flowers; Hummingbird on feeding on however, they will feed on any flower Honeysuckle Yellow Evening that produces abundant nectar. (Lonicera ciliosa) Primrose (Oenothera flava) GARDENING Sphinx moths, also called “Hummingbird” moths, prefer pale or white flowers that Sap wells created by Red-naped Sapsuckers open in the evening and that have a strong, sweet smell. supply many animals with a quick energy boost. They pick up pollen on their legs and wings. Adults nectar Hummingbirds need lots of insects (protein) in on columbine and honeysuckle. Caterpillars feed on their diet, and will nab insects stuck in sap wells. 11 evening primrose. 12
Beetles, Flies and Wasps Attract Pollinators with these Native Plants Flower Beetle (Typocerus) Here’s a sample of the garden-hardy native plants in our Beetles present the greatest diversity of insects and region that attract pollinators. pollinators. Regular flower visitors include soldier beetles and flower beetles. They feed on pollen and even chew on Common Name Scientific Name flowers, but in this mess and soil pollination process they Common Chokecherry.......... Prunus virginiana pick up pollen and carry it to other flowers. Golden Currant................... Ribes aureum Flower Beetle Red Osier Dogwood............. Cornus stolonifera (Typocerus) GARDENING These beetles are commonly seen on yarrow and sunflowers. Blue Elderberry................... Sambucus cerulea Lewis’ Mock Orange............ Philadelphus lewisii Rubber Rabbitbrush.............Chrysothamnus nauseosus Flower or Hover Fly (Syrphid) Western Serviceberry........... Amelanchier alnifolia Because they’re so abundant, flies are important Oregon Grape..................... Mahonia repens pollinators even though they transport less pollen than bees. Hover flies mimic bees and wasps in coloration Orange Honeysuckle............ Lonicera ciliosa and behavior to avoid predators. Beebalm............................. Monarda fistulosa Flower or Hover Fly Bluebunch Wheatgrass........ Pseudoroegneria spicata (Syrphid) GARDENING Hover flies feed on the same flowers Blanket Flower.................... Gaillardia aristata preferred by bees, such as golden currant, rabbitbrush, Yellow Buckwheat................ Erigonum flavum and sunflowers. Clarkia............................... Clarkia pulchella Blue Columbine................... Aquilegia coerulea Pollen Wasp (Pseudomasaris) Coneflower.......................... Echinacea angustifolia Don’t be frightened if you see this wasp, it doesn’t Showy Fleabane.................. Erigeron speciosus eat insects or bite humans, but seeks out flowers for Missouri Goldenrod............. Solidago missouriensis pollen. A yellow-jacket look-a-like, pollen wasps can be identified from other wasps by their clubbed antennae. Scarlet Globemallow............ Sphaeralcea coccinea Pollen Wasp They’re solitary nesters and you might find their hard Hairy False Goldenaster....... Chrysopsis villosa (Pseudomasaris) mud nests attached to rocks or twigs. Dotted Blazing Star.............Liatris punctata Threadleaf Phacelia............. Phacelia linearis GARDENING Pollen wasps pollinate Scarlet Gilia........................ Gilia aggregata penstemons and phacelias. Maximilian Sunflower......... Helianthus maximiliani Wilcox’s Penstemon............. Penstemon wilcoxii Common Yarrow................. Achillea millefolium 13 14
Mourning Cloak (Nymphalis antiopa) How do butterflies survive the winter? Mourning Cloak, Milbert’s Tortoiseshell, and Anglewing spend the winter as adults, but most butterflies overwinter as eggs, caterpillars or pupae. In your garden, tree cavities, leaf litter and branch piles shelter over-wintering butterflies from predators and cold weather. Lolo National Forest Building 24, Fort Missoula Missoula, MT 59804 Text: Susan Reel • Design and Illustrations: Nancy Seiler The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, gender, religion, age, disability, political beliefs, sexual orientation, and marital or family status. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington, DC 20250-9410 or call (202) 720-5964 (voice or TDD). USDA is an equal opportunity provider and employer. Printed on recycled paper. R1-10 -5
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