Botanical Name: Coreopsis verticillata ‘Permathread™ Red Satin’

Common Name: Tickseed

Hardiness Zone: Perennial in Most Climates (USDA Zones 4–9)

Size: 16–20" Tall × 18–24" Wide

Growth Habit: Mounded, Clump-Forming Habit

Sunlight: Full Sun (Best Flowering)

Soil: Prefers Well-Drained Soil; Tolerates Sandy or Poor Soils

Water Needs: Low to Moderate; Excellent Drought Tolerance Once Established

Bloom Season: Late Spring through Early Fall (Extremely Long Bloom Period)

Fertilizer: Minimal; Excess Fertility Reduces Blooming

Features: Deep Red Flowers with Golden Centers, Fine Threadleaf Foliage, Heat & Humidity Tolerant, Deer Resistant, Pollinator Friendly

Uses: Ideal for Perennial Borders, Mass Plantings, Pollinator Gardens, Containers, and Low-Maintenance Landscapes

Patent: ✔ Patented

Propagation: ❌ Propagation Prohibited

More About Coreopsis ‘Permathread™ Red Satin’

Coreopsis ‘Permathread™ Red Satin’ is a modern, improved threadleaf coreopsis bred specifically for nonstop color and superior garden performance. Its rich red blooms—accented by bright golden centers—deliver a dramatic contrast rarely seen in traditional coreopsis. The flowers are produced in remarkable abundance, creating a saturated, velvety look that holds strong throughout the growing season.

Blooming begins in late spring and continues relentlessly through summer and into early fall without the need for constant deadheading. The fine, threadlike foliage forms a dense, tidy mound that stays attractive even in extreme heat. Unlike older red coreopsis selections that can fade or struggle, ‘Red Satin’ maintains strong color and vigor well into the hottest part of summer.

Why We Like It (Our Trials)

In our trials, ‘Permathread™ Red Satin’ has been an absolute workhorse. It handles heat, humidity, and drought far better than many older coreopsis varieties and continues blooming when others slow down or take breaks. The foliage remains clean and upright, with no flopping or thinning, even after months of flowering.

We especially appreciate how little maintenance it requires. There’s no need for aggressive deadheading, and it doesn’t require rich soil or frequent watering to perform at a high level. Pollinators visit constantly, while deer consistently ignore it. For gardeners who want bold color with minimal effort, this variety delivers season after season.

Coreopsis ‘Permathread™ Red Satin’ vs. Other Coreopsis Varieties

Compared to classic threadleaf varieties like ‘Moonbeam,’ ‘Permathread™ Red Satin’ offers deeper, more saturated color and significantly improved summer performance. While ‘Moonbeam’ excels with a soft, airy look, ‘Red Satin’ brings richness and intensity without sacrificing durability.

When compared to large-flowered coreopsis, ‘Permathread™ Red Satin’ provides a finer texture and longer, more continuous bloom period. It also maintains a neater habit and better heat tolerance. For gardeners seeking a long-blooming, red-flowered perennial that thrives in full sun and tough conditions, ‘Permathread™ Red Satin’ stands out as one of the best modern tickseed selections available.