Peruvian lily (Alstroemeria)
Alstroemeria spp.
Clump-forming perennial with lily-like, freckled blooms in many colors; prized as a long-lasting cut flower; prefers cool roots, moist well-drained soil and full sun to partial shade.
Caution: Toxic to Pets
Toxicity: toxic
Alstroemeria contains compounds that can cause mouth and stomach irritation, drooling, vomiting in pets; skin contact may irritate sensitive people.
🌱Care Requirements
Light
Place Alstroemeria in bright, indirect light or a spot with morning sun and afternoon shade. Avoid harsh midday sun that scorches leaves; indoors use an east- or bright north-facing window and keep a few feet from south-west exposures.
Water
Water thoroughly when the top 2–3 cm (1 inch) of soil feels dry. Allow excess to drain and never let crowns sit in water. In active growth water more frequently; reduce slightly after flowering but avoid prolonged dryness.
Humidity
Prefers moderate humidity. Maintain 40–60% indoors with occasional misting, pebble tray, or a humidifier if air is very dry to reduce leaf edge browning and stress.
Temperature
Ideal range about 10–25°C (50–77°F). Tolerates brief cooler periods to ~5°C (41°F) but avoid sustained heat above 30°C (86°F) or frost.
🔧Common Problems & Solutions
Yellowing, soft lower leaves
Cause: Overwatering or poor drainage causing root/rhizome rot
Solution: Reduce watering, improve drainage, lift and inspect rhizomes; trim rotten parts and repot in fresh, gritty mix
Few or no blooms
Cause: Insufficient light, low fertility, or cutting back too hard
Solution: Move to brighter spot, feed with balanced fertilizer in spring, avoid removing all flower stalks prematurely
Brown leaf edges and tip scorch
Cause: Low humidity, inconsistent watering, or salt build-up
Solution: Maintain even moisture, flush soil occasionally, raise humidity with trays or misting
Aphids, spider mites or thrips
Cause: Dry, dusty conditions or new growth attracting pests
Solution: Inspect regularly, wash with strong water spray, use insecticidal soap or neem for persistent infestations
✂️How to Propagate Peruvian lily (Alstroemeria)
Best propagated by division in early spring or autumn. Lift the clump, gently separate rhizome sections ensuring each has 2–3 buds and some roots, then replant at the same depth in rich, free-draining soil. Seeds can be sown fresh in trays, kept moist and cool; germination may be slow. Stem cuttings are less reliable—take basal shoots with a bit of root and root in a moist, shaded medium.
🌍Origin & Background
Family: Alstroemeriaceae
Native to: Native to South America, especially Chile and Brazil, with many species found in Andean regions.
Natural Habitat: Grows in cool, well-drained mountain slopes and coastal valleys. Prefers soils that are fertile, humus-rich and moist but not waterlogged, often in dappled light beneath shrubs.
🗓Seasonal Care Guide
Winter
Reduce watering and keep cool but frost-free; mulching outdoors protects crowns. Provide bright light and avoid overfeeding during dormancy.
Spring
Begin regular watering and feed with a balanced fertilizer as new shoots appear. Divide clumps if crowded and replant.
Summer
Maintain consistent moisture and provide afternoon shade in hot climates. Deadhead spent flowers to prolong bloom.
Fall
Cut back after foliage dies down and lift tuberous rhizomes where winters are harsh; apply mulch for protection.
❓Frequently Asked Questions
How often do I water Alstroemeria?
Water when the top 2–3 cm (1 inch) of soil is dry, typically every 5–10 days depending on season and potting mix.
Can Alstroemeria grow in full sun?
They tolerate morning sun but prefer bright, indirect light; intense afternoon sun can scorch leaves.
Is Alstroemeria toxic to pets?
Yes. Leaves and stems can cause gastrointestinal upset and skin irritation in pets and humans.
When should I divide Alstroemeria?
Divide crowded clumps in early spring or autumn when plants are starting new growth or going semi-dormant.
Why aren’t my Alstroemeria flowers lasting long?
Short blooms can result from heat stress, inconsistent moisture, poor nutrition, or low light. Adjust care and deadhead.
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Last updated: 11/7/2025