Zagreb Coreopsis
Zagreb Coreopsis
Golden Threadleaf Daisies on a Bulletproof Plant
Zagreb Coreopsis (Coreopsis verticillata 'Zagreb') is one of the toughest, most reliable perennials you can grow — a dense mound of fine, ferny threadleaf foliage smothered in cheerful golden-yellow daisies from early summer into fall. Bred from a hardy North American native, it shrugs off heat, drought, and lean soil while feeding bees and butterflies. A carefree, sunny workhorse for borders in Edina, Woodbury, and Maple Grove.
Zagreb Coreopsis Plant Details
| Attribute | Detail |
|---|---|
| Botanical Name | Coreopsis verticillata 'Zagreb' |
| Mature Size | 12–18 in. tall, 18–24 in. wide |
| Hardiness Zone | 3–9 (Twin Cities is zone 4b–5a — fully hardy) |
| Light | Full sun (6+ hours) |
| Bloom Time | Early summer into fall |
| Flower Color | Golden-yellow |
| Soil | Well-drained; tolerates clay and lean soil; very adaptable |
| Winter Hardiness | Reliable to -30°F once established |
| Deer Resistance | Rarely browsed by deer or rabbits |
| Native Status | Selection of native threadleaf coreopsis |
Landscape Uses in Minnesota
Low-water sunny borders: Its fine foliage and long bloom make a soft, golden ribbon in the border or along paths. Space 18–24 inches apart.
Pollinator and prairie gardens: Bees and butterflies love the flowers; it spreads gently to fill space. Pair with coneflower, catmint, and little bluestem.
Best Time to Plant in Minnesota
Plant in spring (late April–May) or early fall. It's adaptable but appreciates good drainage.
How to Plant Zagreb Coreopsis
Dig a hole twice the pot's width at the same depth, loosening clay and mixing in compost. Set the crown level, backfill, water in, and mulch lightly. Space 18–24 inches apart.
Watering Zagreb Coreopsis
First year: Water every 2–3 days at first, then weekly. Stop 2–3 weeks before the ground freezes.
After year one: Drought-tolerant — water only during extended dry spells. A midsummer shear refreshes it for fall bloom.
Q: How tough is it really?
Very — threadleaf coreopsis is among the most reliable, low-maintenance perennials for sunny Minnesota gardens.
Q: Will it survive a Minnesota winter?
Easily — hardy to zone 3, returning faithfully each year.
Q: Is it deer-resistant?
Yes — deer and rabbits rarely bother coreopsis.
Q: Does it spread?
It spreads gently by rhizomes to form a colony — easy to manage and great for filling space.
You May Also Like
Moonbeam Coreopsis (Coreopsis verticillata): The soft pale-yellow classic from the same species.
Coneflower (Echinacea): A native pollinator partner with matching toughness.
Little Bluestem (Schizachyrium): A native grass for a prairie-style border.
How Many Zagreb Coreopsis Do I Need?
Zagreb grows 18–24 in wide and spreads gently by rhizomes, so space plants about 20 inches apart for a continuous golden ribbon. For accents, plant in groups of 3–5.
| Bed / Run Length | Plants Needed (at ~20 in apart) |
|---|---|
| 5 ft | 3 plants |
| 10 ft | 6 plants |
| 15 ft | 9 plants |
| 20 ft | 12 plants |
Zagreb Coreopsis Season-by-Season in Minnesota
- Spring: Fine, ferny threadleaf foliage fills in as a dense low mound.
- Summer: Cheerful golden-yellow daisies cover the plant from early summer and draw bees and butterflies.
- Fall: Bloom continues into fall, especially after a midsummer shear; the plant spreads gently to fill space.
- Winter: Cut back the spent foliage; the rhizomatous crown rests dormant and returns faithfully each spring.
At a Glance
✔ Pollinator-Friendly ✔ Deer-Resistant ✔ Drought-Tolerant
Plant It With
- Moonbeam Coreopsis — the soft pale-yellow classic from the same species for a two-tone planting.
- Magnus Coneflower — purple-pink coneflowers that contrast the golden daisies.
- Little Bluestem — a native grass for prairie-style texture and fall color.
- Paprika Yarrow — flat red-orange flower heads with the same tough, sunny nature.
Is Zagreb Coreopsis Right for Your Yard?
Zagreb is a bulletproof choice for full-sun, well-drained Minnesota borders — even lean or clay soil — shrugging off heat and drought while deer pass it by. It's not a fit for shade or constantly wet ground.