Alstroemeria (Peruvian Lily) Not Blooming: Stop High Nitrogen, Divide Crowded Clumps

Two Common Causes for Leafy, Flowerless Alstroemeria

1. Excess Nitrogen

• Lawn fertilizer runoff or high-N feed → leaves, no blooms.
• Switch to **composted manure** or low-N bloom booster.

2. Overcrowding

• Large clumps = less flowers.
• Divide in fall (dormant): Dig, separate brittle rhizomes carefully, replant immediately.
• Keep moist, mulch to cool roots.

Hardiness Note

Not reliable below Zone 6. In colder zones: lift rhizomes in fall, store dark/dry (don't desiccate), or grow in pots.

Fix nitrogen & crowding → flowers return.