Peruvian-lily
Alstroemeria aureaUSDA | Grow Zone
8-10Outdoors all year in zones 8 to 10. Anywhere colder, keep it as a houseplant. Protect it below 32°F.
- Light
- Full sun to partial shade
- Water
- When top inch is dry
- Humidity
- 40-60%
- Temperature
- 60-75°F
- Difficulty
- Intermediate
- Growth
- Moderate
- Mature size
- 2-3 ft tall, 1-2 ft wide
- Pets
- Non-toxic to pets and children
Alstroemeria aurea, commonly known as the Peruvian lily, is a vibrant perennial native to South America. Its stunning flowers and ease of care make it a favorite among gardeners, offering a long blooming season and attractive foliage.
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Ideal temperature
60-75°F is where it grows fastest. Below 32°F cold damage starts.
Spacing and harvest
- Mature size
- 2-3 ft tall, 1-2 ft wide
- Plant apart
- 12-24 in
- Frost
- Half hardy: light frost only
Everything it needs
9 essentials at a glance
Watering
Alstroemeria aurea prefers consistently moist soil but can tolerate short periods of dryness.
Water thoroughly when the top inch of soil feels dry, typically every 1-2 weeks depending on the season. In the growing season, increase watering frequency, while in winter, reduce it. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and leaf drop.
Light
This plant thrives in full sun to partial shade, ideally receiving 6-8 hours of direct sunlight daily.
It can tolerate some shade, especially in hotter climates, but too much shade may reduce flowering. Ideal placement is in a spot that receives morning sun and afternoon shade during the peak summer heat.
Soil
Alstroemeria aurea prefers well-draining soil with a pH range of 6.0 to 7.0.
A mix of potting soil, compost, and perlite works well to ensure proper drainage. Avoid heavy clay soils that retain water, as this can lead to root rot.
Humidity
This plant enjoys moderate humidity levels around 40-60%.
To increase humidity, consider misting the leaves or placing a humidity tray filled with water and pebbles beneath the pot. Signs of low humidity stress include browning leaf tips and wilting.
Temperature
Alstroemeria aurea thrives in temperatures between 60-75°F (15-24°C) and is hardy in zones 8-10.
It can tolerate light frost but should be protected from extreme cold and heat. During summer, ensure it is not exposed to temperatures above 85°F (29°C) for prolonged periods.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 or similar, applying every 4-6 weeks during the growing season.
In fall, reduce fertilization as the plant prepares for dormancy. Signs of nutrient deficiency include stunted growth and yellowing leaves.
Pruning
Prune Alstroemeria aurea in late fall after flowering has finished.
Use clean, sharp scissors to cut back spent flowers and any dead or damaged foliage. This encourages new growth in the spring. Deadheading spent flowers throughout the blooming season can promote additional blooms.
Repotting
Repot every 2-3 years or when the plant becomes root-bound.
Choose a pot that is 1-2 inches larger in diameter than the current one. Signs that it needs repotting include roots growing out of the drainage holes and stunted growth. When repotting, gently loosen the roots and refresh the soil.
Propagation
Propagation can be done through division or seeds.
For division, carefully dig up the plant in early spring, separate the tubers, and replant them at the same depth. For seeds, sow them in a seed-starting mix in spring, keeping them moist until germination occurs. The best time for propagation is in early spring when the plant is actively growing.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or nutrient deficiency.
How to fix it
Check soil moisture levels and reduce watering if necessary. Fertilize with a balanced fertilizer to address nutrient issues.
Root rot
Why it happens
Poor drainage or excessive watering.
How to fix it
Ensure proper drainage and reduce watering frequency. If root rot occurs, remove affected roots and repot in fresh soil.
Wilting
Why it happens
Under-watering or extreme heat.
How to fix it
Check soil moisture and water thoroughly if dry. Provide shade during extreme heat to prevent further wilting.
Browning leaf tips
Why it happens
Low humidity or underwatering.
How to fix it
Increase humidity by misting or using a humidity tray, and ensure consistent watering.
Pest infestations (aphids, spider mites)
Why it happens
Dry conditions and stress.
How to fix it
Regularly inspect the plant and treat infestations with insecticidal soap or neem oil as needed.
Care through the year
Spring
In spring, focus on watering regularly as the plant begins to grow. Fertilize with a balanced fertilizer to promote healthy growth and blooming.
Summer
During summer, ensure the plant receives adequate water, especially in hot weather. Monitor for pests and provide shade during extreme heat.
Fall
In fall, reduce watering as the plant prepares for dormancy. Prune back spent flowers and any dead foliage to encourage new growth in spring.
Winter
In winter, limit watering to prevent root rot. Protect the plant from frost and cold drafts, and avoid fertilizing during this dormant period.
Toxicity & Safety
Alstroemeria aurea is considered non-toxic to pets and children. However, ingestion may cause mild stomach upset. Always monitor pets and children around plants.
Good to know
How often should I water my Alstroemeria?
Water your Alstroemeria aurea when the top inch of soil feels dry, typically every 1-2 weeks. Adjust frequency based on the season and environmental conditions.
Why are my Alstroemeria leaves turning yellow?
Yellow leaves can indicate over-watering or nutrient deficiency. Check the soil moisture and consider fertilizing if necessary.
What is the best light for Alstroemeria?
Alstroemeria aurea thrives in full sun to partial shade, ideally receiving 6-8 hours of sunlight daily. Morning sun with afternoon shade is ideal.
When should I prune my Alstroemeria?
Prune Alstroemeria aurea in late fall after flowering has finished to encourage new growth in spring. Deadhead spent flowers throughout the blooming season.
How do I propagate Alstroemeria?
You can propagate Alstroemeria aurea through division or seeds. Division is best done in early spring, while seeds can be sown in spring in a seed-starting mix.
What are the signs of root rot in Alstroemeria?
Signs of root rot include yellowing leaves, wilting, and a foul smell from the soil. Ensure proper drainage and reduce watering to prevent this issue.
What companion plants grow well with Alstroemeria?
Companion plants that thrive alongside Alstroemeria aurea include Echinacea purpurea, Rudbeckia hirta, and Salvia nemorosa, which share similar light and soil requirements.
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