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“Pollinator-friendly cut flower plants”
Adding appropriate flowering plants to the farm or garden landscape promotes insect diversity and sustainability in the system. Pollinators are vital for some fruit and vegetable production. They increase fruit size, yield, and quality in many other fruits and vegetables that are self-pollinating. Pollinator-friendly plants are also attractive to other species of insects - many of them beneficial (e.g. hover flies, ladybird beetles and parasitic wasps). Flowers may produce pollen (a source of protein needed for insect egg production) and/or nectar (a source of carbohydrates needed for energy). Flower size and shape determine the insects that are attracted to the flower. In general, small, shallow flowers attract small bees, flies and wasps. Larger, deeper flowers tend to attract honeybees, bumblebees, and butterflies. White or light-colored flowers that release their fragrance at night attract night-flying moths.
When you plant for pollinators - remember:
Avoid plants with double flowers, the nectar and pollen is usually not accessible (or not present at all). Don't use plants bred to be "pollen-free" (e.g. some cultivars of sunflowers) - they won't be feeding the bees. Plants that are nourished and watered will provide better food for pollinators (and usually better cut flowers as well). Bees can't see the color red so they won't normally utilize red flowers (unless the red color has an ultraviolet light component in it). However, these flowers are often quite attractive to hummingbirds.
Plan for a full season of flowering - pollinators are present from early spring to late fall. Deadhead plants to encourage prolonged bloom. Weeds (i.e. dandelions and goldenrod) can provide excellent early spring and late fall pollen and nectar for pollinators. Cultivars of good bee plants may or may not be good bee plants. When plant breeders tinker around with plant characteristics, they may inadvertently change the food value of the nectar and/or pollen that the plant produces. If I have knowledge that a specific cultivar is a good bee plant, the cultivar name will be indicated below the species name in the charts below.
PERENNIALS - All take full sun, are adapted to the mid-Atlantic region, and need well-drained soil (unless otherwise indicated).
"Native" is indicated for plants that are native anywhere in the continental United States.
| COMMON NAME |
LATIN NAME |
HGT. |
FLOWER COLOR |
BLOOMS |
NOTES & SOURCE CODES |
| Yarrow |
Achillea millefolium 'Summer Pastels' (ok from seed), 'Cerise Queen', 'Colorado' |
1-3' |
many |
summer |
native, white is best for pollinators, can dry flowers, rapid spreader Ch Co J JC S SofC T |
| Allium |
Allium spp. |
1-4' |
white, pink, purple, & yellow |
late spring/summer |
bulbs, plant in fall, tolerates drought, deadhead A. tuberosum & A. caeruleum to avoid weed problems, can dry flowers Ch Co JC |
| Golden marguerite |
Anthemis tinctoria |
2-3' |
yellow |
summer |
tolerates poor, dry soil, doesn't like humidity or heat, cut back heavily after flowering Ch |
| Swamp milkweed |
Asclepias incarnata |
3' |
mauve, pink or white |
spring to early summer |
native, adapts to drier conditionsCh J JC SofC |
| New England aster |
Aster novae-angliae |
4-6' |
many |
late summer to fall |
native, support or pinch back, harvesting can cause rash Ch J JC PD SSE |
| New York aster |
Aster novi-belgii |
1-6' |
many |
late summer to fall |
native, support or pinch back Ch |
| Astrantia |
Astrantia major |
2-3' |
cream/pink pink & red cultivars |
late spring to summer |
part shade ok, likes organic matter and moisture, 10-14 d as cut flower
Ch JC |
| Bluebeard |
Caryopteris x clandonensis |
3-4' |
blue |
late summer to fall |
shrub, cut back hard in late winter JC PD |
| Common bluebeard |
Caryopteris incana |
3-5' |
violet-blue or white |
late summer |
shrub, cut back hard in late winter, may dieback in zone 6, drought tolerant Ch |
| Leopard's bane |
Doronicum orientale var. magnificum [may be listed as D. caucasicum] 'Finesse' (ok from seed) |
1-2' |
yellow |
early to mid-spring |
part shade in hot locations, water during drought, zone 4-7 (not heat tolerant - may go summer dormant) Ch |
| Coneflower |
Echinacea purpurea 'White Swan' |
2-3' |
red/purple & white |
July to September |
native, part shade ok, drought tolerant, sow in fall (or cold stratify), the flowers of the straight species droop & look wilted, plants may be short-lived Ch J PD PV SofC S SSE T |
| Small globe thistle |
Echinops ritro |
3-4' |
dark blue |
June to August |
spiny foliage, can dry flowers, ok on poor & dry soil Ch |
| Bluetop sea holly |
Eryngium alpinum 'Blue Star', 'Superbum' |
1-2' |
blue |
midsummer |
spiny, 14 days as cut flower, ok on poor & dry soil, difficult to germinate Ch JC |
| Sea holly |
Eryngium amethystinum |
1½-2' |
blue |
midsummer |
spiny, ok on poor & dry soil, difficult to germinate, can dry flowers Ch |
| Flat sea holly |
Eryngium planum 'Blaukappe' |
2-3' |
blue |
midsummer |
spiny, ok on poor & dry soil, difficult to germinate Ch J JC |
| Eryngium |
Eryngium x tripartitum |
3½ -4' |
blue |
midsummer |
spiny, ok on poor & dry soil, difficult to germinate Ch JC |
| Blanket flower |
Gaillardia aristata |
3' |
yellow/red |
summer |
plants sprawl, good in hot & dry conditions, long-blooming, flowers close at night Ch T |
| Blanket flower |
Gaillardia x grandiflora'Golden Goblin' (blooms first year from seed, yellow)[may be listed as Gaillardia aristata]
|
2-3' |
yellow/red |
summer |
plants sprawl, good in hot & dry conditions, plants are short-lived but self-seed Ch JC SofC |
| Baby's breath |
Gypsophila paniculata |
2-3' |
white or pink |
summer |
likes alkaline soil, filler, taprooted Ch J JC SofC |
| Sneezeweed |
Helenium perennis |
3-5' |
yellow, orange, red, mahogany |
midsummer to frost |
likes lean, moist soil, cut back hard by June, needs support, cut back by 1/3 after flowering Ch JC |
| Jasione |
Jasione perennis 'Blue Light' |
2' |
blue |
June on |
blooms 1st year from seed, part shade ok Ch |
| Lavender |
Lavandula angustifolia |
2-3' |
white, pink, lavender |
summer |
can dry flowers, prune to 6-8" in spring, low germination rate, slow grower CO J JC PV S SofC T |
| Lavender |
Lavandula x intermedia 'Dilly Dilly' |
2-3' |
purple and white |
summer |
drought tolerant, can dry flowers, shrubby JC S |
| Liatris |
Liatris spp. |
1-6' |
purple, mauve, rose-purple, white |
summer |
mid to late native, prefers moist soils - especially L. spicata, can dry flowers Ch JC PD |
| Sea lavender |
Limonium gerberi [may be listed as L. latifolium] |
3' |
lavender |
summer |
can dry flowers Ch J |
| Bee balm |
Monarda didyma 'Panorama' series (ok from seed) |
2-4' |
many |
summer |
native, needs moisture retentive soil, can be invasive, divide every 2-3 years, suitability as a cutflower varies by cultivar Ch J S |
| Catmint |
Nepeta catarica |
2-4' |
lavender |
summer |
part shade ok, drought tolerant, cut back hard after flowering for second bloom, filler Ch J PV SofC SSE T |
| Oregano |
Origanum laevigatum |
1½-2' |
pink/purple |
late summer |
hardy only to zone 6/7, drought tolerant, may sprawl Ch |
| Wild marjoram |
Origanum vulgare |
1-3' |
pink/purple |
mid to late summer |
likes alkaline soil, for culinary oregano use vegetatively propagated plants J PV |
| Penstemon |
Penstemon barbatus |
1½-3' |
many |
late spring to mid-summer |
native Ch J JC |
| Russian sage |
Perovskia atriplicifolia |
3-5' |
blue/purple |
summer |
tolerates drought, aromatic foliage, can be dried, long-blooming Ch JC PD T |
| Balloon flower
|
Platycodon grandiflorus 'Florist Blue' |
2½-3½' |
blue |
mid to late summer |
part shade ok, doesn't like wet soil, slow to emerge in spring, sear stems to prolong vase life, needs support, taprooted Ch JC SofC |
| Spiked speedwell |
Pseudolysimachion spicatum [probably listed as Veronica spicata] |
1-3' |
white, pink, red & blue |
late spring to midsummer |
deadhead for repeat bloom, flowers for 4-7 weeks Ch J JC PV |
| Pincushion flower |
Scabiosa caucasica |
1½-2' |
blue to purple |
summer |
likes neutral pH, mulch in summer, House hybrids slow-grower Ch JC |
| Cream scabious |
Scabiosa ochroleuca |
2-3' |
yellow |
summer |
short-lived but self-seeds Ch |
| Devil's bit scabious |
Scabiosa succisa [may be listed as S. pratensis] |
1-2½' |
dark blue/purple |
summer to fall |
small flowers Ch |
| Goldenrod |
Solidago canadensis 'Golden Baby' (ok from seed) |
2-6' (2') |
yellow |
midsummer to fall |
native, part shade ok, don't fertilize, divide every 2-3 years Ch JC PD |
| Tansy |
Tanacetum vulgare |
2-4' |
yellow |
mid to late summer |
spreads aggressively by rhizomes, site carefully, part shade ok, can use leaves in potpourri Ch |
| Tall verbena |
Verbena bonariensis |
3-4' |
rose-violet |
summer to fall |
hardy to zone 6 but reseeds readily Ch Co J PD S |
| New York ironweed |
Vernonia noveboracensis |
3-7' |
violet-purple |
late summer to fall |
native, cut back hard 1 month after emergence to increase flowers, likes moist soil Ch |
ANNUALS - All take full sun and well-drained soil unless otherwise indicated.
"Native" is indicated for plants that are native anywhere in the continental United States.
| COMMON NAME |
LATIN NAME |
HGT. |
FLOWER COLOR |
BLOOMS |
NOTES & SOURCE CODES |
| Corn cockle |
Agrostemma githago 'Milas' series |
2-3' |
pink, white, red-purple |
May - July |
poisonous seed can contaminate grain crops, drought tolerant Ch Co PV SofC |
| Safflower |
Carthamus tinctorius |
1-6' |
orange or yellow (sometimes red or white) |
mid-summer |
deep taproot, strong, upright grower, drought tolerant, can dry flowers, spiny leaves Ch SofC |
| Cosmos |
Cosmos bipinnatus |
5-6' |
white, pink, purple |
summer |
short vase life Ch Co J PV S SofC SSE T |
| Cosmos |
Cosmos sulphureus |
1½-3' |
yellow & orange |
summer |
drought tolerant Ch J PV S SofC SSE T |
| Sunflower |
Helianthus annuus 'Holiday', 'Sonja', 'Autumn Beauty' |
2-10' |
many |
summer |
native, drought tolerant Ch Co J PV S SofC SSE T |
| Love-in-a-mist |
Nigella damascena |
1½-2' |
white, pink, blue, purple |
summer |
can dry flowers and seedpods Ch Co J PV S SofC SSE T |
| Mexican marigold |
Tagetes minuta |
7-10' |
yellow |
late summer/fall |
small flowers, use as filler, on noxious weed list in California Ch SofC |
| Mexican sunflower |
Tithonia rotundifolia 'Torch' |
2½-6' (4-6') |
red/orange |
summer |
drought tolerant, sear stems to prolong vase life Ch Co J PV S SSE T |
| Trachelium |
Trachelium caeruleum |
2½-3' |
white or violet |
summer |
it's a tender perennial, can use as annual Ch |
| Zinnia |
Zinnia species & hybrids 'Pastel Dreams', 'Blue Point', 'County Fair' |
1-4' |
many |
summer |
use single flowered types, susceptible to leaf scorch & mildew CH Co J S PV SofC SSE T |
For additional cultural information see:
- Armitage, A.M. Herbaceous Perennial Plants: A Treatise on their Identification, Culture, and Garden Attributes. 2nd edition. 1989. Stipes Publishing L.L.C., Champaign, IL.
- Enterprise Guide for Southern Maryland: Producing Cut Flowers - Liatris. Fact Sheet 467. Cooperative Extension Service. U. of MD.
- Producing Annual Sunflowers as Cut Flowers. Fact Sheet 686. Cooperative Extension Service. U. of MD.
- Production of Alliums as Cut Flowers. Fact Sheet 767. Cooperative Extension Service. U. of MD.
- Production of Purple Coneflower as a Cut Flower. Fact Sheet 731. Cooperative Extension Service. U. of MD.
- Production of Yarrows as Cut Flowers. Fact Sheet 685. Cooperative Extension Service. U. of MD.
- Sustainable Cut Flower Production. 2000. 21 p. (this publication can be obtained free from ATTRA, download from http://www.attra.org/attra-pub/farmscape.html or call 1-800-346-9140.)
Copies of Maryland Cooperative Extension publications can be obtained online from: http://www.agnr.umd.edu/MCE/Publications/Category.cfm?ID=5
Note: Please disregard information about using pesticides in the above Cooperative Extension publications. Beneficial insect habitat should be pesticide-free.
For additional information on native pollinators see:
- Alternative Pollinators: Native Bees. 1999. 20 p. (this publication can be obtained free from ATTRA, download from http://www.attra.org/attra-pub/farmscape.html or call 1-800-346-9140.)
- Batra, S.W.T. 1984. Solitary Bees. Scientific American 250(2):120-127.
- Bee Biology and Systematics Laboratory, Agricultural Research Service, USDA website: http://www.loganbeelab.usu.edu/
- Bosch, J. & W. Kemp. 2000. How to Manage the Blue Orchard Bee. Sustainable Agriculture Publications, Burlington, VT. $9.95 + 3.95 S&H
- Griffin, B.L. 1997. Humblebee Bumblebee. Knox Cellars Publishing, Bellingham, WA $12.
Seed and plant sources:
(Note - source shown may sell a cultivar with unknown pollinator qualities)
Information compiled by:
Leslie Gilbert, Horticulturist, Small Farm Success Project, Sustainable Agricultural Systems Lab, USDA, October 2002.
~This project was funded by IFAFS (Initiative for Future Agriculture and Food Systems - USDA)
Reviewed by:
- Dr. Suzanne Batra, Bee Research Lab, United States Department of Agriculture (retired)
- Dr. Stanton Gill, Central Maryland Research and Education Center, Maryland Cooperative Extension
- Dr. Eric Grissell, National Museum of Natural History, Smithsonian Institution
- Dr. Beth Norden, National Museum of Natural History, Smithsonian Institution
- Dr. T'ai Roulston, Blandy Experimental Farm, University of Virginia
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