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

See our complete Coreopsis Plant Guide for more in depth care details.

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.

Permathread™ Red Satin vs. Other Coreopsis Varieties

Red Satin stands apart from Permathread™ Shades of Rose with a more decisive, high-contrast look, featuring deeper red tones that read bold and sharp in modern designs. Shades of Rose leans softer and more blended, offering a romantic wash of color, while Red Satin delivers crisp drama and visual punch. Compared to Moonbeam Coreopsis, Red Satin functions as an entirely different design tool—Moonbeam is airy, pale, and subtle, while Red Satin acts as color punctuation, creating immediate contrast against silvers, blues, chartreuse, and white.

When placed alongside Early Sunrise, Red Satin moves away from the classic golden daisy aesthetic in favor of a contemporary palette that feels curated and intentional. Early Sunrise is cheerful and traditional, whereas Red Satin reads refined and dramatic. Set next to Double the Sun, Red Satin focuses less on oversized or ruffled bloom form and more on season-long color presence and a sleek, polished habit; Double the Sun wins on showiness, but Red Satin excels when the goal is a planting that looks stylish from spring through fall. Gardeners looking for a modern, high-contrast coreopsis with rich red color should choose Permathread™ Red Satin.