How to Grow Daylily 'Stella de Oro'

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Daylily 'Stella de Oro'

Hemerocallis 'Stella de Oro'

flower

'Stella de Oro' is a compact, deciduous to semi-evergreen daylily cultivar renowned for its golden-yellow flowers and exceptional reblooming ability throughout the growing season. This award-winning variety produces fragrant blooms that typically last one day but are replaced by fresh flowers daily during its long blooming period. It is one of the most popular and reliable daylilies for gardens, borders, and landscape plantings.

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Example Daylily 'Stella de Oro' timeline · Pittsburgh, PA (Zone 6b)

Plant Daylily 'Stella de Oro'
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
First Daylily 'Stella de Oro' blooms
Mid-to-late summer

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Daylily 'Stella de Oro' dates for your own zip code.

Growing Conditions

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Sun: Full sun (6-8 hours daily) for best blooming; tolerates partial shade (4-6 hours) but may reduce flower production

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Water: Moderate watering; water deeply 1-2 times weekly during establishment and dry spells. Once established, extremely drought tolerant and requires minimal watering except in prolonged dry periods.

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Spacing: 12-18 inches

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Days to maturity: Blooms the first year from transplants; peak performance by year 2-3

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Planting depth: Crown (where leaves emerge) should be at or slightly above soil level; do not bury the crown

Soil

Type: Well-draining loamy to sandy soil; tolerates most soil types

pH: 5.5-7.5

Amendments:

Compost Aged manure Peat moss for clay soils

Growing Zones

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Hardy in zones 3-9, performing exceptionally well in zones 4-8

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b

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Growth Stages

Dormancy/Emergence

4-6 weeks

Plant emerges from dormancy in early spring with fresh green foliage appearing from the crown

Remove any dead foliage from previous season. Apply fresh compost or mulch around the base. Begin regular watering as growth resumes.

Vegetative Growth

6-8 weeks

Dense mounds of long, arching, grass-like leaves develop; plant establishes a robust clump structure

Maintain consistent moisture during this phase. Fertilize with balanced fertilizer (10-10-10) in early spring. Remove any dead or damaged foliage.

Flowering - Spring

4-6 weeks

Tall, branched flower scapes emerge above foliage; golden-yellow, fragrant trumpet-shaped flowers open daily, typically in late May through June

Deadhead spent flowers daily or allow them to fall naturally. Provide supplemental fertilizer (bloom booster formula) weekly to encourage continuous flowering. Ensure adequate water.

Reblooming - Summer to Fall

8-12 weeks (June through September or until frost)

Distinctive feature of 'Stella de Oro': new flower buds continuously form and bloom in cycles throughout summer and into fall, even in heat

Continue deadheading for neatest appearance and maximum blooming. Water regularly; heat stress reduces blooming so mulch to keep roots cool. Fertilize every 2-3 weeks.

Dormancy/Decline

4-6 weeks

Foliage yellows and dies back as temperatures cool in late fall; plant prepares for winter

Cut back dead foliage to 3-4 inches above ground in late fall or early spring. Apply 2-3 inches of mulch (leaves, compost) for winter protection in colder zones.

Companion Planting

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Plant with:

Russian Sage Catmint Coreopsis Black-eyed Susan Salvia Ornamental grasses (Liriope, Carex) Lavender Sedum Yarrow Coneflower

Avoid planting near:

Slugs and snails are pests of daylilies; avoid dense low-growing ground covers that harbor them Avoid overcrowding with plants requiring frequent water or rich soil that promotes fungal issues

Common Pests

and
Hand-pick in early morning or evening. Create barriers with copper tape or diatomaceous earth around plants. Beer traps or slug bait can be effective. Remove debris and dense mulch where slugs hide.
Increase humidity by misting foliage. Prune affected leaves. Spray with insecticidal soap or horticultural oil if infestation is severe. Strong water spray can dislodge mites.
Spray with strong water to dislodge. Use insecticidal soap or neem oil. Encourage natural predators like ladybugs and lacewings.
Remove affected flowers. Spray with insecticidal soap or spinosad. Blue sticky traps can monitor and trap thrips.
Remove and destroy affected leaves immediately. Avoid overhead watering. Maintain good air circulation. Clean up plant debris in fall.

Uses

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Edible Flowers

Culinary

Daylily buds and flowers are edible and prized in Asian cuisine, particularly Chinese cooking where buds are dried and used in soups and stir-fries. The mild, slightly sweet flavor adds visual appeal and delicate taste to salads and garnishes. [source]

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Traditional Medicine

Medicinal

Daylilies have been used in Traditional Chinese Medicine for centuries to treat inflammation, liver function, and emotional well-being. Modern herbalists explore the plant's potential anti-inflammatory and antioxidant properties. [source]

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Cut Flowers and Decorative Use

Household

Individual blooms make elegant, fragrant fresh arrangements; the golden color brightens indoor spaces. Flowers are ideal for same-day floral designs and special events. [source]

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Garden Design and Landscape

Craft

'Stella de Oro' is extensively used in perennial borders, foundation plantings, and mass plantings for reliable, extended color from late spring through fall. Its compact form and reblooming habit make it ideal for water-wise, low-maintenance gardens. [source]

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Pollinator Support

Wildlife

Golden flowers attract bees, butterflies, and other pollinators throughout the long blooming season, providing a valuable nectar source from early summer through early fall. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

'Stella de Oro' flowers are not typically harvested as they last only one day. However, fresh blooms can be cut in early morning and enjoyed in a vase for their single-day display and fragrance. For landscape enjoyment, deadhead spent flowers daily by pinching them off or cutting them just below the bloom to encourage continuous flowering throughout the season.

Fun Facts

🌱 'Stella de Oro' won the prestigious Stout Silver Medal from the American Hemerocallis Society and is considered one of the most important daylily cultivars ever introduced, revolutionizing breeding for reblooming habits in daylilies.
🌱 The name 'Stella de Oro' means 'Star of Gold' in Italian, reflecting the bright golden-yellow coloring and star-shaped flower form that appears almost daily throughout much of the growing season.
🌱 Each flower opens in the morning and closes by evening, but unlike many daylilies that bloom only 2-3 weeks per year, 'Stella de Oro' produces new flowers daily for 4-5 months, sometimes with 100+ flowers per plant in a season.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Compost Crown Cultivar Deadhead Full Sun Mulch Partial Shade pH

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