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Zagreb Coreopsis

Coreopsis verticilliata 'Zagreb'

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ZONES  3-9 | Good to grow! Zone
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12-18" tall x 18-24" wide. Coreopsis 'Zagreb' is a long blooming, easy-to-grow perennial with a big display of brilliant golden-yellow flowers beginning in late spring. Drought resistant/drought tolerant plant (xeric).

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Description

12-18" tall x 18-24" wide. Coreopsis 'Zagreb' is a superior flowering perennial that grows readily in a wide range of garden conditions. It begins blooming in late spring covering itself with large brilliant golden-yellow flowers into the summer. Shear back after the first flush of flowers to encourage re-blooming later in the summer. Zagreb Whorled Tickseed spreads gently by rhizomes and has attractive finely textured bright green foliage. With good resistance to browsing deer, the plant is easy-to-grow and is well adapted across much of the country. Named after the Croatian capital of Zagreb.

Planting & Care

Tips For Growing Coreopsis (Tickseed)

Coreopsis (Tickseed) are long-blooming native wildflowers that are easy-to-grow and provide ample nectar for butterflies. They're resistant to browsing rabbits and deer.
Coreopsis can be divided into two groups that have different growing requirements: Coreopsis grandiflora and Coreopsis verticiliata (Threadleaf Tickseed) cultivars and hybrids.

1. Coreopsis grandiflora types (Tickseed) - these cultivars are generally grown from seed and are a short-lived perennial (3 to 4 years).

Preferred growing conditions:

  • Needs sandy/gravely and sandy loam type soils. Avoid clay.
  • Does best with gravel mulches.
  • After their second growing season, only requires deep but infrequent watering. Too much water makes them floppy and shortens their lifespan.
  • Plant in full hot sun.
  • Adding just a few handfuls of compost and Yum Yum Mix in the planting hole is enough. Don't plant into a rich, highly-amended soil.

Special comments

  • Deadhead plants to prolong bloom. Leave a few seed pods on the plants to encourage re-seeding.

2. Coreopsis verticillata (Threadleaf tickseed) and hybrids - These are long-lived perennials that spread by rhizomes to form wide, dense growing clumps.

Preferred growing conditions:

  • These species grow in a wide range of soil types including clay. Avoid very alkaline soils as they may get chlorotic (yellow foliage) due to unavailability of iron and other trace minerals.
  • These plants don't need mulching except in hot climates.
  • These are moisture-loving perennials and do best in moderately moist soil conditions.
  • Plant in full sun areas.
  • They like compost-enriched soils at planting time.

Special comments

Threadleaf tickseed plants are often late to wake in spring from dormancy, so don't worry when other neighboring perennials wake up first.

Garden care for all types of Coreopsis:

  • Fertilize Coreopsis just once in fall with Yum Yum Mix and Planters II. In addition, for C. verticillata types, green sand is recommended for alkaline soils to correct or prevent chlorosis.
  • Plants can be divided in mid-spring when clumps die-out in the center or become too large for their place in the garden.
  • Leave all Coreopsis varieties standing over the winter and cut back to 1-2" inches above the soil in mid-spring when the plants begin to wake up.

Shipping

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As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and fall-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and fall-planted bulbs are shipped at the proper planting time for your Growing Zone. Perennial and fall-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment and all items are shipping to the same address, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you have any questions, please call Customer Service at (802) 227-7200 or contact us by email or chat.

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Key Features

Light Requirements

  • Full Sun

Water Tolerance

Low-Water

Bloom Time

Late spring to early summer

Advantages

  • Bee Friendly
  • Attracts Butterflies
  • Native
  • Mass Plantings
  • Easy To Grow
  • Low Maintenance
  • Cut Flowers
  • Container Planting
  • Deer Resistant
  • Rabbit Resistant

Additional information

Mature Height

12-18" tall

Mature Spread

18-24" wide

Soil Type

  • Average Soil
  • Clay Soil
  • Sandy Soil

Soil Moisture

  • Waterwise

Planting Time

  • Spring / Summer

Awards

RHS Award of Garden Merit

Growing Zones

  • Zone 3
  • Zone 4
  • Zone 5
  • Zone 6
  • Zone 7
  • Zone 8
  • Zone 9

Neonicotinoid Free

Yes

Can Send To PO Box

No

Ships to Hawaii & Alaska

No

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