Earlybird Cardinal™ 'Endless Heart' Daylily

Earlybird Cardinal™ is the marketed daylily selection identified as ‘Endless Heart’ and covered by United States Plant Patent 16,515. It bears ruffled watermelon-red flowers with a chartreuse throat and can repeat bloom through the season. ## Landscape Use Use its dense clump in sunny perennial borders, mass plantings, or large containers. The plant profile reports an 18–20 inch height and 12–18 inch spread, with flower stems above grassy foliage. [Perennials.com identifies Earlybird Cardinal™ as ‘Endless Heart’, gives USDA Zones 4–9, and describes the red flowers and chartreuse throat](https://www.perennials.com/plants/hemerocallis-earlybird-cardinal.html). The [patent document records the cultivar denomination, botanical classification, and May 9, 2006 publication date](https://patents.google.com/patent/USPP16515P2/en). ## Growing Conditions Grow in full sun and ordinary garden soil, including clay or sandy ground, as long as water drains. Keep new plants watered while they establish. A mature clump can spread quickly through new fans, so leave room for it to fill its intended area. The named selection is reported as hardy in Zones 4–9. ## Seasonal Interest It begins flowering earlier than many daylilies and may rebloom repeatedly; local weather affects the exact timing and number of flower cycles. ## Maintenance Cut spent flower stems back after flowering. Remove old foliage in late fall, and divide the clump in fall or early spring when you need to limit its spread or propagate it.