How to Grow Kwanso Daylily
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Kwanso Daylily
Hemerocallis fulva 'Kwanso'
flowerKwanso is a double-flowered cultivar of the fulvous daylily, producing striking ruffled orange blooms with darker orange or reddish tones. This vigorous perennial is sterile and spreads via rhizomes rather than seed, making it a reliable, non-invasive ornamental. It is prized for its dramatic, long-lasting flowers and low-maintenance nature.
When should you plant Kwanso Daylily in your zone?
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Example Kwanso Daylily timeline · Pittsburgh, PA (Zone 6b)
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Plant Kwanso Daylily
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 Kwanso Daylily blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Kwanso Daylily dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; extremely cold- and heat-hardy
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Get my Kwanso Daylily timeline →Growth Stages
Establishment
4-8 weeksNewly planted rhizomes develop roots and early leaf shoots emerge; plant appears sparse and low-growing
Water regularly to establish roots; avoid transplanting during this phase; mulch lightly to retain moisture
Vegetative Growth
3-6 monthsStrap-like, arching green foliage expands into dense clumps; no flowers yet, plant focuses on leaf and rhizome development
Water as needed; deadhead any early buds to redirect energy to foliage; apply balanced fertilizer in spring
Budding & Flowering
4-6 weeks peak bloomTall flower scapes emerge above foliage; buds form at the top and open into double ruffled orange flowers; blooms last one day but continuous succession of buds
Maintain consistent moisture; stake tall stems if needed; deadhead spent flowers daily; apply phosphorus-rich fertilizer to boost blooms
Post-Bloom
2-3 monthsFlowers cease, scapes dry out, foliage remains green and vigorous; plant may produce a second, lighter flush of blooms in some climates
Remove dried flower scapes; continue light watering; watch for repeat blooming in fall in cool zones; apply balanced fertilizer
Dormancy
3-4 months (November-March in most zones)Foliage yellows and dies back completely in late fall/early winter; rhizomes and roots are dormant underground
Cut back dead foliage; apply light winter mulch in cold zones; no watering needed; plant is fully dormant
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use miticide if severe; ensure adequate humidity
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Remove damaged flowers; use insecticidal soap or neem oil; encourage natural predators
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and
Hand-pick; create barriers with diatomaceous earth; use copper tape; remove debris where they hide
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Remove and destroy infested buds; apply insecticide during bud formation; thin plantings for air circulation
Uses
Golden Needles (dried buds)
CulinaryIn Asian cuisine, particularly Chinese cooking, dried unopened daylily buds are called 'golden needles' or 'lily buds.' They are used to add a mild, slightly sweet flavor to stir-fries, soups, and braised dishes. [source]
Ornamental garden display
HouseholdKwanso daylilies are prized as low-maintenance perennials for borders, mass plantings, and naturalized areas. Their dramatic double flowers and dense foliage provide extended color with minimal input. [source]
Traditional medicine
MedicinalIn traditional Chinese and Ayurvedic medicine, daylily flowers and buds are used to make teas and herbal preparations believed to have cooling, calming, and diuretic properties. [source]
Pollinator support
WildlifeDaylily flowers attract bees, butterflies, and other pollinators during the blooming season, making Kwanso a valuable plant for supporting beneficial insects in gardens. [source]
Fresh cut flowers
CraftIndividual freshly opened Kwanso flowers make beautiful, ephemeral cut arrangements; their unique double form is striking in low, mounded vases or as accent flowers. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Kwanso is not typically harvested but enjoyed as a landscape plant. Individual flowers can be cut for fresh arrangements in the morning when they first open. Remove dried scapes in fall for aesthetics; plants do not need annual cutting back but benefit from it. Some cultures harvest unopened buds for culinary use (golden needles).
Fun Facts
- 🌱 Kwanso daylilies are sterile (unable to produce viable seed), which makes them non-invasive in cultivation—unlike the wild fulva species, which can naturalize aggressively. This trait was selected deliberately by breeders.
- 🌱 Each daylily flower blooms for only one day, hence the name 'hemerocallis' (from Greek 'hemera' = day, 'kallos' = beauty), but Kwanso produces a continuous succession of buds over weeks, ensuring non-stop color.
- 🌱 The double flowers of Kwanso are a result of sepal-petal mutation; the doubled appearance is created when extra petals develop, a trait highly prized in ornamental daylily breeding since the 1950s.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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