How to Grow Inca (Inca Lily)
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Inca (Inca Lily)
Alstroemeria aurea subsp. aurea
flowerInca lilies are stunning perennial flowers known for their exotic, orchid-like blooms in vibrant shades of red, orange, yellow, pink, and bi-colors. These cut flowers are prized for their long vase life (2-3 weeks) and are popular in floral arrangements. They produce tall stems with multiple flower clusters and delicate, spotted petals.
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Example Inca (Inca Lily) timeline · Pittsburgh, PA (Zone 6b)
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Plant Inca (Inca Lily)
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 Inca (Inca Lily) blooms
Around Jul 16≈ 90 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 8-11; can be grown in zones 6-7 with winter protection
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Dormancy/Planting
2-4 weeksRhizomes are planted in spring. Soil begins warming and roots establish.
Plant rhizomes pointed-end up. Keep soil warm (65°F+). Water lightly until shoots emerge.
Sprouting & Vegetative Growth
4-6 weeksShoots emerge and develop stems with narrow, lance-shaped foliage arranged in whorls.
Provide full sun and regular water. Begin fertilizing every 2 weeks with balanced fertilizer. Install stakes or support for tall varieties.
Budding & Flowering
6-12 weeksTerminal flower clusters form with multiple buds opening progressively. Blooms feature spotted or streaked petals in warm colors.
Continue regular watering and fertilizing with phosphorus-rich fertilizer to promote blooms. Deadhead spent flowers to extend blooming period.
Peak Bloom
3-4 weeksMultiple flower clusters are open simultaneously. Cut flowers have excellent longevity.
Harvest flowers in morning when stems are turgid. Cut at base of stem. Re-cut under water and remove lower foliage. Change vase water every 2 days.
Senescence & Dormancy
Variable; 2-4 monthsFlowers fade and drop; foliage begins yellowing. Plant enters dormancy in fall/winter.
Stop fertilizing. Reduce watering gradually. Cut back dead foliage to 3-4 inches. Provide cool period (50-55°F) for 8-10 weeks to encourage next season's blooming.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use neem oil or insecticidal soap if severe. Increase humidity.
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Remove with alcohol-dipped cotton swab; spray with insecticidal soap or neem oil weekly until controlled.
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Ensure well-draining soil; avoid overwatering. Use fungicide if caught early. Remove severely affected plants.
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Spray with neem oil or insecticidal soap. Remove affected flowers. Reflective mulches can deter.
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Hand-pick at dusk; use copper barriers or diatomaceous earth around plants. Beer traps effective.
Uses
Edible Flowers
CulinaryInca lily petals are edible and can garnish salads and desserts, adding a delicate floral flavor and striking visual appeal. [source]
Cut Flower Arrangements
HouseholdInca lilies are highly valued in the floral industry for their exotic appearance, multiple blooms per stem, and exceptional vase life, making them ideal for bouquets and arrangements. [source]
Floral Design & Events
CraftTheir vibrant colors and orchid-like appearance make them popular in wedding bouquets, event centerpieces, and high-end floral designs. [source]
Pollinator Attraction
WildlifeThe brightly colored flowers attract hummingbirds, bees, and butterflies, supporting pollinator populations in gardens. [source]
Traditional Uses
MedicinalIn South American traditional medicine, Alstroemeria species have been used in herbal preparations, though evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cut flowers in early morning when stems are fully hydrated. Use a sharp knife or scissors to cut at the base of the stem just above the soil or lower foliage. Remove lower leaves below the waterline to prevent bacterial growth. Flowers typically last 2-3 weeks in a vase with fresh water changed every 2 days. For bouquets, cut when 1-2 flowers on each cluster are open; remaining buds will open in the vase.
Fun Facts
- 🌱 Inca lilies are native to the Andes Mountains of South America and are named for the Inca civilization that inhabited that region.
- 🌱 Each individual flower on an Inca lily cluster has a unique pattern of spots or stripes, much like fingerprints, making every bloom distinctive.
- 🌱 Inca lily petals contain pigments called anthocyanins and carotenoids, which give them their brilliant colors and have antioxidant properties.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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