PlantsTickseeds→Tickseed (Coreopsis verticillata 'Zagreb')

1 company sells this plant

Common names:
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Give a thumbs up Threadleaf Coreopsis

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Plant Height: 12 to 18 inches
Plant Spread: 2 feet and more
Leaves: Deciduous
Flowers: Showy
Flower Color: Yellow
Bloom Size: 1"-2"
Flower Time: Summer
Late summer or early fall
Fall
Other: Deadheading faded flowers ensures more flowering throughout the season
Underground structures: Rhizome
Uses: Guardian plant
Cut Flower
Will Naturalize
Wildlife Attractant: Bees
Butterflies
Resistances: Deer Resistant
Propagation: Other methods: Division
Pollinators: Various insects
Miscellaneous: Tolerates poor soil
Monoecious
Awards and Recognitions: Other: 2011 Great Plant Picks award winner

Yellow no ID Asiatic lily in center - unplanned.

Photo gallery:
Location: Terrace garden left side.Date: 2010-0620Yellow no ID Asiatic lily in center - unplanned.
By pirl
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Date: 2019-07-13
By Green_Go
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Location: Terrace garden left side.Date: 2012-0615Garden setting
By pirl
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Location: Nora's Garden - Castlegar, B.C.Date: 2016-10-25 3:19 pm. A surprising blend of fall colours.
By HemNorth
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Location: Nora's Garden - Castlegar, B.C.Date: 2018-10-27- Leaf colour in the fall is always a pleasant surprise.
By HemNorth
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Location: Belmont gardenDate: 2007-0717Weaves in and out between other plants but isn't so aggressive th
By pirl
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Location: Nora's Garden - Castlegar, B.C.Date: 2016-07-08 6:17 pm. A pleasing, crisp yellow in the garden.
By HemNorth
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Date: 2019-07-13
By Green_Go
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Date: 2012-08-17
By Paul2032
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Location: Illinois, USDate: 2006-06-26
By molanic
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Location: Illinois, USDate: 2008-07-04With shasta daisies.
By molanic
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Image Courtesy of Bloomin Designs Nursery Used with Permission
By vic
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Date: 2012-08-17
By Paul2032
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Date: 2012-08-17
By Paul2032
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Location: Manitoba, CanadaDate: 2016-07-14
By DebbieC
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Location: central IllinoisDate: 2017-10-10
By jmorth
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Location: Downingtown, PennsylvaniaDate: 2010-06-07patch along house
By ILPARW
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Location: Wayne, PennsylvaniaDate: 2020-07-05line of plants in yellow bloom in border
By ILPARW
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Comments:
Posted by critterologist (Frederick, MD - Zone 6b) on Jun 15, 2018 7:50 AM

This is one tough plant! It's in my "hellstrip" garden, about 12 square feet bordered by 2 concrete driveway aprons, the sidewalk, and the asphalt road. I watered that garden occasionally the first couple of years, and maybe if we hadn't had any rain for a few weeks. It blooms constantly! I hesitate to say "good for xeriscaping," because people think that means no watering ever. Most good xeriscaping plants still need water the first few years while they are establishing roots.

Over the past 15 years, it has gradually spread into quite a large clump. I take divisions regularly (just pull or dig pieces that have bits of root on them, pot them up, and in a few weeks they've filled the pot with roots). It is in a place with excellent drainage, since there are a couple feet of chunky gravel under the soil (from road construction). I've lost other coreopsis varieties, possibly due to wet feet in winter. As you can see from the many photos of this plant, it's very adaptable!

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Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Jul 17, 2019 8:44 AM

The Threadleaf Tickseed is native from Maryland to Florida to Arkansas. This is one of the two cultivars that are so commonly planted; the other being 'Moonbeam.' This 'Zagreb' cultivar has bright yellow, darker flowers and is a little shorter than the other cultivar. It has a light, fine textured, airy appearance like the species. It is a tough perennial and drought tolerant, and easy to grow and care for. I have dead-headed this perennial by carefully cutting off the old flowers and very tops with hand shears to ensure more blooming later. It slowly keeps spreading by underground stems and may have to be dug back if it invades where not wanted. The one disadvantage in using this whole species is that strong competition from other plants can lessen its growth or even kill it off, as I had a patch of this along my house that became infested with crabgrass and smartweed and really caused the patch to diminish until I carefully pulled out all the weeds, then it came back well.

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Plant Events from our members
Catmint20906 On June 2, 2015 Bloomed
Catmint20906 On September 13, 2014 Obtained plant
christine2 On May 4, 2017 Obtained plant
Transplanted 1 to under Miss Kim
christine2 On June 1, 2014 Obtained plant
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Discussion Threads about this plant
Thread Title Last Reply Replies
Help me ID these plants by jkayroberts82 Jun 3, 2019 6:35 AM 1
Coreopsis by crystalview Jun 6, 2016 2:46 PM 15
2016 Garden Chat and Photos by ssgardener Sep 28, 2020 9:48 AM 1,947
What's Blooming 2016 - Photos and Chat. by NJBob Dec 31, 2016 10:07 PM 1,927
Color Disasters anyone ? by ge1836 May 2, 2021 12:35 AM 173
Do you cut down beebalm? by gardengus Oct 15, 2014 9:01 AM 19
Garden Chat and Photos by Catmint20906 Jan 2, 2016 11:47 AM 3,043
Now I just know EVERYONE wants a landscape like MINE!!!!!!!!!!!! by DavidofDeLand Jul 18, 2015 1:57 PM 202
What's Blooming- - 2014 - - Photo's please! by Xeramtheum Jan 6, 2015 7:33 PM 2,770
Best performing perennials of 2013 by pirl Jan 11, 2014 7:25 AM 116

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