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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: Gold (Yellow-Orange) Bright Yellow
Bloom Time: Mid Summer
Foliage: Herbaceous
Other details: This plant is attractive to bees, butterflies and/or birds
Soil pH requirements: 4.6 to 5.0 (highly acidic) 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) 8.6 to 9.0 (strongly alkaline)
On Sep 1, 2009, Grinder12000 from Columbus, WI wrote:
I love Coreopsis verticillata. I planted five in heavy clay, full sun. The first year was your typical 1st year growth. Year 2 was wonderful until we had 12 inches of ran in 7 hours and they were underwater.
Came back strong and they are one my my most vibrant plants. They bloom until the 3rd week of July and then fade. Each plant is about 18 inches wide and 20 inches tall.
On Jun 8, 2008, DeenDixie from Fayetteville, AR wrote:
Zagreb grows well for me in my front (northwest Arkansas) garden, facing east, where it gets 4 1/2 or so hours of morning sun. This is the 3rd year I have grown it, and my 6 original gallon-size plants have now doubled their size. The first blooms of the year (late May) usually do not open well... I suspect something to do with the pecan tree blossums falling 20 feet away, which blow into the Zagrebs. In mid June they roar into flower, giving me many months of bright yellow bloom. I water them every 3 weeks or so in case of no rain. This year I plan to spray them every couple of weeks with BloomBooster and see if that has a positive effect. Kind regards. :-)
On May 25, 2008, straea from Somerville, MA (Zone 6b) wrote:
I have grown 'Zagreb' in more favorable conditions, but I am currently growing it in a sloped, hot, windy, poor-soil site and it's still trooping along. It is not as vigorous at this site as it is under those more favorable conditions, but it has stood up well to the harshness of the site, blooming without fail for a lengthy period and attracting bees and other small pollinators.
On Feb 17, 2008, coo13549 from Batavia, OH (Zone 6a) wrote:
Planted (3) in late Spring/early summer 2007; plants did fine but not one flower. They get hot sun all day, and are planted in holes in a mulch covered garden cloth. The soil under that cloth is pretty poor, too (heavy clay).
On Mar 21, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:
Short to Medium 18"- Plant 14" apart. Golden yellow flowers on a more upright plant. Especially free flowering - continuously in bloom from early summer right into fall. Makes a good cut flower with its unusual narrow tapered foliage. They spread readily and can be used in a naturalized planting, on a sunny bank, or in the traditional border. While they attract butterflies, they are deer resistant.
On Jul 4, 2005, russkiypenguin from Belton, MO wrote:
I planted two of these plants then completely ignored them for a year. Despite that one of them made it through to the next year wonderfully and now I'm nursing the second one along. Beautiful yellow flowers in the middle of the summer despite the fact that I didn't even improve my tough Missouri clay soil.
On Apr 21, 2005, KC3Lady from Overland Park, KS (Zone 6a) wrote:
I love this plant! I would have it in my garden because of the beautiful, airy foliage even without the flowers it produces. I have two of these plants that were transplants from my mother's garden. They both bloomed the year I transplanted them and every year since. They have been reliable and absolutely no-fuss at all.
Blooms continuously from June until frost. Nice, bright yellow color. I especially enjoy the feathery foliage!
Regional...
This plant has been said to grow in the following regions:
Fayetteville, Arkansas Fountain Valley, California New Haven, Connecticut Bear, Delaware Deland, Florida Atlanta, Georgia Bethlehem, Georgia Marietta, Georgia Carbondale, Illinois Nilwood, Illinois Peoria, Illinois Spring Grove, Illinois Waukegan, Illinois Terre Haute, Indiana Shawnee Mission, Kansas La Grange, Kentucky Lexington, Kentucky Salvisa, Kentucky Kennebunk, Maine Madison, Maine Jamaica Plain, Massachusetts Saugus, Massachusetts Somerville, Massachusetts Farmington, Michigan Trenton, Michigan Minneapolis, Minnesota Rosemount, Minnesota Saint Cloud, Minnesota Saint Paul, Minnesota (2 reports) Belton, Missouri Miles City, Montana Whitefield, New Hampshire Glen Head, New York Ithaca, New York Kew Gardens, New York Penn Yan, New York Belfield, North Dakota Cincinnati, Ohio Delaware, Ohio Newark, Ohio Baker City, Oregon Bend, Oregon Chiloquin, Oregon Ambler, Pennsylvania Pottstown, Pennsylvania Rockwall, Texas Rowlett, Texas Sugar Land, Texas Farmington, Utah Ruther Glen, Virginia Kalama, Washington Vancouver, Washington Columbus, Wisconsin Minocqua, Wisconsin West Bend, Wisconsin
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