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Botanical name: Hemerocallis StelladOro (also spelled Stella de Oro)
Habit: Compact mound of strappy foliage with abundant goldenyellow trumpetshaped blooms that rebloom throughout the season.
Hardiness: USDA Zones approx 310 (sources indicate Zone3 suitability)
Size: About 1012 tall (2530cm) and spreads slowly to ~12 wide (30cm) in many sources.
Unique selling point: One of the first truly reblooming daylilies bloom from early summer into fall with proper care.
Sun: Needs full sun (ideally 6+ hours of direct sunlight per day) for best bloom results.
Tolerates part sun / partial shade, especially useful in hotter climates where afternoon shade is beneficial.
Soil: Prefers welldrained soil, adaptable to a wide range of soils (including slightly clay or rocky) since its tolerant.
Moisture: Performs in average moisture; doesn’t need ultramoist conditions but benefits from consistent watering, especially in dry spells.
Plant spacing: Give about 12 (30cm) between plants for a compact, full mound effect.
Watering:
At planting: Keep soil moist until established.
After establishment: Water during dry periods to keep foliage healthy; about 1 of water per week is often cited.
Deadheading: Remove spent flower stems and seed pods to encourage continuous rebloom. Proper deadheading is a key tip for maximum performance.
Division: Every 35 years or when clumps become crowded to maintain vigor and bloom quantity.
Fall/winter cleanup: Remove old foliage and dead flower stalks in late fall or early spring to maintain tidy bed and reduce disease risk.
Good choice for Zone3 with the right site: full sun, good drainage, not in heavy wet soils. (Gardenia lists hardiness 39)
Avoid low spots where water collects or remains frozen around the crown; raised bed or slope can help.
Because its compact, its less prone to windburn or flop in snow; still, good site selection helps.
In spring, check for any winter damage and clean up accordingly.
Photo from growingnorth.ca