How to Grow Anderson's Rain Lily
Wikimedia Commons
Anderson's Rain Lily
Habranthus andersonii
flowerAnderson's Rain Lily is a delicate bulbous perennial that produces charming pink or rose-colored trumpet flowers that typically bloom after summer rains. This low-growing plant is native to South America and valued for its reliable flowering and attractive foliage that emerges in late spring or early summer.
When should you plant Anderson's Rain Lily in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Anderson's Rain Lily timeline · Pittsburgh, PA (Zone 6b)
-
Plant Anderson's Rain Lily
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
First Anderson's Rain Lily blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Anderson's Rain Lily dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 8-11; can be grown in containers elsewhere
Sign up free to see if Anderson's Rain Lily grows in your zone — and get a personalized planting timeline.
Get my Anderson's Rain Lily timeline →Growth Stages
Dormancy
November-March (depending on zone)Bulbs rest underground with minimal to no visible foliage
Keep soil dry during winter months. No watering needed unless in arid climates. Protect from freezing temps in zones 8-9.
Emergence & Growth
April-JuneLinear green foliage emerges from soil; leaves grow 6-12 inches tall
Begin moderate watering as growth starts. Apply balanced fertilizer monthly. Ensure good drainage.
Budding & Flowering
June-September (multiple flushes possible)Delicate pink or rose trumpet flowers appear on thin stems, typically after moisture events
Water after dry spells to trigger blooms. Deadhead spent flowers to encourage more blooms. Light feeding with flower fertilizer.
Seed Development & Senescence
September-OctoberFlowers fade; seed pods develop; foliage begins to yellow and die back
Allow foliage to persist until completely brown. Do not remove prematurely. Reduce watering gradually.
Return to Dormancy
October-MarchAbove-ground parts completely die back; bulbs prepare for rest period
Stop watering. Remove dead foliage. Bulbs are hardy and need cold/dry period for next season's vigor.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Remove and destroy infested bulbs; keep area clean of debris; use reflective mulches
-
Increase humidity around plantings; spray with water; use miticide if severe
-
and
Hand-pick; use copper tape barriers; apply slug bait if needed
-
Improve soil drainage; reduce watering frequency; remove affected bulbs; avoid overhead watering
Uses
Not edible
CulinaryHabranthus andersonii is not intended for consumption and contains potentially toxic compounds. [source]
Cut flowers & arrangements
HouseholdDelicate pink trumpet flowers make charming additions to floral arrangements and bouquets, offering a cottage garden aesthetic. [source]
Pollinator attraction
WildlifeFlowers attract hummingbirds and bees, providing nectar and pollen sources during mid to late summer. [source]
Dried flower arrangements
CraftFlowers can be dried for use in dried arrangements and craft projects, maintaining their delicate trumpet structure. [source]
Container gardening
HouseholdWell-suited to containers and rock gardens, particularly in cooler zones where tender bulbs can be moved indoors during winter. [source]
Harvest Tips
This is an ornamental flower, not typically harvested for food. Cut flowers for bouquets when fully open. Seeds develop in pods after flowering—allow pods to mature on plant for self-seeding if desired, or collect ripe seed pods and store for future propagation.
Fun Facts
- 🌱 Habranthus andersonii is part of the Amaryllidaceae family and earned the common name 'Rain Lily' because flowers reliably emerge and bloom shortly after summer rains or moisture events—a natural adaptation to seasonal rainfall patterns in South America.
- 🌱 Unlike many bulbs that require extended cold periods, Habranthus andersonii prefers warmer conditions and can produce multiple blooming cycles in a single growing season if moisture triggers are properly managed.
- 🌱 This species is sometimes called a 'surprise lily' because its sudden flowering after rain showers delights gardeners with unexpected blooms when conditions align, making it a favorite for xeriscape and drought-tolerant gardens.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Anderson's Rain Lily planting timeline
Tell us your zip code and we'll calculate exactly when to start Anderson's Rain Lily seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Anderson's Rain Lily timeline →