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PlantFiles: Threadleaf Coreopsis, Tickseed
Coreopsis verticillata 'Moonbeam'

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Coreopsis (kor-ee-OP-sis) (Info)
Species: verticillata (ver-ti-si-LAH-tuh) (Info)
Cultivar: Moonbeam

13 vendors have this plant for sale.

51 members have or want this plant for trade.

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Category:
Perennials

Height:
18-24 in. (45-60 cm)

Spacing:
15-18 in. (38-45 cm)

Hardiness:
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
N/A

Bloom Color:
Pale Yellow
Bright Yellow

Bloom Time:
Mid Summer
Blooms repeatedly

Foliage:
Herbaceous

Other details:
This plant is attractive to bees, butterflies and/or birds

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Non-patented

Propagation Methods:
By dividing the rootball

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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There are a total of 43 photos.
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Profile:

12 positives
3 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive coriaceous On Apr 4, 2014, coriaceous from ROSLINDALE, MA wrote:

A beautiful plant, with fine-textured foliage and lemon yellow flowers all summer. Like the species, it requires good drainage---better in sandy or loamy soils than clay.

This cultivar differs from the species in the lighter, softer color of the flowers. It is also sterile, which is why it continues to bloom for so long without deadheading. I do find that some light cutting back in August if blooming slacks off can help it rebloom more strongly in September.

'Moonbeam' tends to be short-lived unless you divide it every couple of years. Unlike the other cultivars, which can be aggressive in the garden, 'Moonbeam' tends to fade away where a neighboring perennial spreads into it. I suspect that those gardeners who find 'Moonbeam' to be aggressive have mislabeled plants. My only complaint about this plant is that it's a bit of a wimp. Not as vigorous as the species or other cultivars.

1992 Perennial Plant of the Year award winner.

Neutral nataliesager On Apr 8, 2013, nataliesager from North Laurel, MD wrote:

I love this plant - but it very rarely comes back the following summer in my garden. It did the first few years, but then stopped. And since then - I keep buying new plants every summer and starting over. I am in zone 7 - Baltimore-Washington corridor. What am I doing wrong?

Positive annakins On Oct 20, 2010, annakins from Aberdeen, SD wrote:

This is the 3rd time I've tried growing this plant. Each year it has not come back. This year it came back and had a 3 foot spread. Bloomed all summer long. Very striking with Max Frei geranium or blue belladonna delphinium.

Positive kczsweetie On Jul 7, 2010, kczsweetie from central, IL (Zone 5a) wrote:

What a great perennial! Mine has really fluorished in it's second year. Low maintenance, and flowers non-stop. Mine are in full/part sun. Hasn't spread at all for me, which is what I wanted, and retains it's delicate-looking globe form all summer. I just love the pale lemon color and dainty leaves.
Quickly becoming one of my absolute favorite plants.

Positive littlelamb On Jul 8, 2009, littlelamb from Virginia Beach, VA (Zone 8b) wrote:

This is a wonderful plant to have in any garden. It's tough, drought-tolerant, can handle humidity pretty well and can handle alot of sun. At dusk, the flowers seem to glow due to their pale yellow color. I moved one of my plants this year, and still have a wonderful flush of flowers. It's pretty low care so it's a plant to have if you really don't like to spend alot of time in the garden on those hot and humid days.

Neutral carrielamont On Nov 5, 2005, carrielamont from Milton, MA (Zone 6a) wrote:

This plant spreads almost infinitely. We have to cut it back every year because it's only allotted a small spot! But it's another Old Faithful - a reliable prolific bloomer. If you like yellow, go for it - in fact, I'll send you some.

July 2010 OK, our entire yard is accented in yellow now, and I am hating the color. It spread not only by a massive underground root system but by seed. Those ominous ferny fronds, and the obnoxious "cheery" yellow flowers .... grrrr. Let's just say it has escaped cultivation.

Positive ADKSpirit On Aug 10, 2005, ADKSpirit from Lake Placid, NY (Zone 4a) wrote:

This is a tough little plant. I didn't get all my plants in the ground last year, because I didn't have all my flower beds done. Those that didn't go in the ground spent the winter in plastic greenhouse pots, above ground, as protected as could be. Due to some funky weather we had, not all of them made it, but this little guy made it through a very a-typical Adirondack mountain winter.

Positive Gindee77 On Jun 3, 2005, Gindee77 from Hampton, IL (Zone 5a) wrote:

This is a sweet little plant that comes back better and better each year.

Positive SalmonMe On Oct 23, 2004, SalmonMe from Springboro, OH (Zone 6a) wrote:

What a sweet little plant! Plant it in groups of 3 or more for best effect. Mulch plants in zone 5 to keep protected from winter kill.

Positive Gayle0000 On Jun 8, 2004, Gayle0000 from Bloomington, IL wrote:

Zone 5b/Central IL: Excellent perennial! Mine grow profusely in full sun, clay soil. I don't water mine due to the clay soil retaining more moisture. No need for fertilizer or soil ammendments for me. Blooms open around June 1 here, and doesn't stop until September. I sheared some & deadheaded some for 1 season. With shearing, I lost my blooms for a couple weeks. Deadheading didn't make a change. I just leave mine alone, and have heavy blooms all season. Leave foliage on for winter and cut back dead foliage in the spring.

I notice the new growth is more heavy on the north, or most shaded base of the clumps, so I make sure my division placements are such that they will spread to the direction toward the shade. This phenomena happens in all 7 of my clumps. Not invasive. I've divided all times of the season, even in the middle of July when you shouldn't, with no problems. Easy to grow plant. --Gayle

Positive tamm0449 On Jun 1, 2004, tamm0449 from Medway, OH (Zone 5a) wrote:

I enjoyed reading the synopsis on the Moonbeam plant. I bought the seeds for this plant from Martha Stewart. I must have watered the seeds too much and only one seed sprouted so much to my impatience I can not wait to see this plant grow and show it's true beauty in full bloom. How long must I wait for it to bloom? Does it bloom the first year or must I wait another year, also how wide and tall does this plant grow? Thank you for so much information on one of my favorite plants and all of the friendly people who are so willing to inform others of their love and knowledge of the plant kingdom.

Neutral uofagirl On May 31, 2004, uofagirl from Orrville, OH (Zone 6a) wrote:

In zone 5.5/6 this is not a perenial, but more a tender perennial. Does not do as well the second year as the first. Requires constant deadheading. Otherwise, very pretty delicate yellow blooms and fine foliage.

Positive Ladyfern On Aug 7, 2003, Ladyfern from Jeffersonville, IN (Zone 6a) wrote:

Low-maintenance, drought-tolerant, long-blooming, excellent shape, lovely flowers--what more could you ask for? I give starts of mine to anyone who needs a plant!

Positive lmsmith4 On Jul 18, 2003, lmsmith4 from Niles, MI wrote:

Zone 5 - Beautiful foilage; long, profuse blooming time; bright yellow flowers; easily divided; becomes huge if unattended!

Positive lauburt On Jun 1, 2003, lauburt from Vancouver, WA wrote:

Excellent plant! Manageable for most landscapes. Butterflies love it! Nice, feathery foliage and gorgeous greenish-yellow flowers. (Reminds me of a yellow highlighter pen!)Flowers continuously from June to frost.

Regional...

This plant has been said to grow in the following regions:

,
Birmingham, Alabama
Phoenix, Arizona
Gravette, Arkansas
Dublin, California
Eureka, California
Martinez, California
Colorado Springs, Colorado (2 reports)
Denver, Colorado (2 reports)
Parker, Colorado
East Canaan, Connecticut
Torrington, Connecticut
Woodstock, Georgia
Bloomington, Illinois
Hampton, Illinois
Lake In The Hills, Illinois
Mount Prospect, Illinois
Peoria, Illinois
Rockford, Illinois
Waukegan, Illinois
Coatesville, Indiana
Indianapolis, Indiana
Jeffersonville, Indiana
Des Moines, Iowa
Olathe, Kansas
Barbourville, Kentucky
Hebron, Kentucky
La Grange, Kentucky
Salvisa, Kentucky
Springfield, Kentucky
Bar Harbor, Maine
Corinna, Maine
Easton, Maryland
La Plata, Maryland
Laurel, Maryland
Arlington, Massachusetts
Milton, Massachusetts
Roslindale, Massachusetts
Dearborn Heights, Michigan
Detroit, Michigan
Niles, Michigan
Owosso, Michigan
Plainwell, Michigan
Rosemount, Minnesota
Saint Cloud, Minnesota
Saint Paul, Minnesota
Florence, Mississippi
Florissant, Missouri
Independence, Missouri
Lincoln, Nebraska
Reno, Nevada
Red Bank, New Jersey
Albuquerque, New Mexico
Alden, New York
Buffalo, New York
Hilton, New York
Himrod, New York
Ithaca, New York
Kew Gardens, New York
Kinderhook, New York
Lake Placid, New York
Mahopac, New York
Port Washington, New York
Westfield, New York
Fuquay Varina, North Carolina
Raleigh, North Carolina
Bucyrus, Ohio
Cambridge, Ohio
Cincinnati, Ohio
Cleveland, Ohio
Hamilton, Ohio
Salem, Ohio
Baker City, Oregon
Beaverton, Oregon
Bend, Oregon (2 reports)
Portland, Oregon
Brookhaven, Pennsylvania
Johnsonburg, Pennsylvania
Milford, Pennsylvania
Pittsburgh, Pennsylvania
Troy, Pennsylvania
Verona, Pennsylvania
West Chester, Pennsylvania
Wilkes Barre, Pennsylvania
Rock Hill, South Carolina
Aberdeen, South Dakota
Hendersonville, Tennessee
Knoxville, Tennessee
Nashville, Tennessee
Brazoria, Texas
Fort Worth, Texas
Hurst, Texas
Palestine, Texas
Rowlett, Texas
San Antonio, Texas
Falls Church, Virginia
Leesburg, Virginia
Linden, Virginia
Manassas, Virginia
Norfolk, Virginia
Springfield, Virginia
Virginia Beach, Virginia
Anacortes, Washington
Port Townsend, Washington
Vancouver, Washington (2 reports)
Appleton, Wisconsin
Ellsworth, Wisconsin
Milwaukee, Wisconsin



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