How to Grow Siloam Double Classic
Siloam Double Classic
Hemerocallis 'Siloam Double Classic'
flowerSiloam Double Classic is a stunning daylily cultivar featuring fully double, ruffled flowers in soft peachy-pink tones with a contrasting darker eye zone. This herbaceous perennial produces abundant blooms throughout the summer season, with each flower lasting just one day but continuously replaced by new buds. The plant forms attractive clumps of strap-like foliage and is renowned for its exceptional hardiness and low-maintenance growing requirements.
When should you plant Siloam Double Classic in your zone?
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Example Siloam Double Classic timeline · Pittsburgh, PA (Zone 6b)
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Plant Siloam Double Classic
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Siloam Double Classic blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Siloam Double Classic dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; extremely cold hardy and adaptable to most temperate climates
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Get my Siloam Double Classic timeline →Growth Stages
Vegetative Growth
2-3 monthsPlant develops increasingly robust clumps of linear green foliage; no flower buds yet visible
Continue regular watering during dry spells; apply balanced fertilizer in early spring; remove any dead foliage
Bud Formation
2-3 weeks before first bloomFlower scapes emerge from the center of the foliage clumps bearing multiple buds; buds are visible as green rounded structures
Ensure adequate water as buds develop; support tall scapes if needed in windy locations; fertilize with low-nitrogen formula to encourage blooming
Flowering
4-6 weeks (peak season); can extend into mid-summerMultiple double flowers open sequentially along each scape; soft peachy-pink blooms with darker eye zone; flowers fully double and ruffled
Deadhead spent flowers daily or allow them to fall naturally; maintain consistent water; stake if needed; enjoy continuous bloom cycle
Post-Bloom & Senescence
Late summer through fall/winter dormancyFlower production slows; foliage remains ornamental; plant prepares for dormancy in cooler zones
Cut back dead foliage in fall or early spring; reduce watering in fall; apply mulch in colder zones before winter; light fall cleanup promotes spring vigor
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove infected foliage; ensure good air circulation; avoid overhead watering; apply fungicide if severe
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Spray with water to dislodge; increase humidity; apply insecticidal soap or neem oil for heavy infestations
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Remove by hand or spray with water; use insecticidal soap or neem oil; natural predators help control
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Remove heavily infested flowers; use sticky traps; apply insecticidal soap; maintain plant vigor
Uses
Edible Flowers
CulinaryDaylily buds and flowers are edible in many cuisines, particularly Asian cooking. Siloam Double Classic produces abundant blooms suitable for culinary use in salads, stir-fries, or as garnishes. [source]
Ornamental Cut Flowers
CraftThe showy double flowers of Siloam Double Classic make attractive short-lived cut flowers for small arrangements and floral displays. The unique double form adds textural interest to fresh bouquets. [source]
Garden Landscaping
HouseholdAs an extremely low-maintenance perennial, Siloam Double Classic is ideal for borders, mass plantings, and cottage gardens. The plant requires minimal deadheading and is virtually pest and disease-resistant once established. [source]
Traditional Medicine
MedicinalDaylilies have been used in traditional Chinese medicine for centuries to address various health concerns. Siloam Double Classic flowers and buds contain bioactive compounds potentially beneficial in herbal preparations. [source]
Pollinator Support
WildlifeDaylily flowers attract bees, butterflies, and hummingbirds, making Siloam Double Classic valuable for pollinator gardens and supporting beneficial insects throughout the season. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Daylilies are ornamental perennials not typically harvested for yield. Cut flowers can be enjoyed indoors for brief periods; harvest individual blooms in early morning for longest vase life (typically 12-24 hours). Deadhead spent flowers daily to encourage continuous blooming and maintain plant appearance. Foliage can be cut back in late fall or early spring.
Fun Facts
- 🌱 Daylilies earned their common name because each flower blooms for only one day, but the plant produces abundant buds that bloom sequentially over weeks, creating a long continuous flower show—sometimes called a 'bloom cycle.'
- 🌱 Siloam Double Classic was hybridized by Pauline Henry and registered by the American Hemerocallis Society, representing decades of selective breeding to achieve the fully double ruffled form and soft peachy-pink coloration.
- 🌱 Daylilies are among the easiest and most forgiving perennials to grow, thriving in poor soil, enduring neglect, and requiring no staking, deadheading, or fertilizing in most situations—making them ideal for beginner gardeners.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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