Gold Rayed Lily
Lilium auratum · Golden Rayed Lily Of Japan · Mountain Lily · Gold Band LilyUSDA | Grow Zone
5-9Outdoors all year in zones 5 to 9. Anywhere colder, keep it as a houseplant. Protect it below 40°F.
- Light
- Full sun to partial shade
- Water
- Moist soil, weekly
- Humidity
- 40-60%
- Temperature
- 60-75°F
- Difficulty
- Intermediate
- Growth
- Moderate
- Mature size
- 3-5 ft tall, 1-2 ft wide
- Pets
- Toxic to cats and dogs
Lilium auratum, known as the Gold Rayed Lily, is a stunning perennial native to Japan. Renowned for its large, fragrant flowers adorned with golden rays, it adds elegance to any garden. This lily is cherished for its beauty and ability to thrive in various conditions.
Ask Vesper about Gold Rayed Lily
Ideal temperature
60-75°F is where it grows fastest. Below 40°F cold damage starts.
Spacing and harvest
- Mature size
- 3-5 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
Lilium auratum prefers consistently moist soil, especially during its active growing season in spring and summer.
Water deeply once a week, allowing the top inch of soil to dry out between waterings. In the fall, reduce watering as the plant enters dormancy. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and browning leaf tips.
Light
This lily thrives in full sun to partial shade, ideally receiving 6 to 8 hours of sunlight daily.
A location with morning sun and afternoon shade is perfect to prevent leaf scorch. It can tolerate some shade, but too little light may inhibit flowering.
Soil
Lilium auratum prefers well-draining, loamy soil with a pH range of 6.0 to 7.0.
A mix of garden soil, compost, and perlite or sand is recommended to ensure good drainage. Avoid heavy clay soils that retain water, as this can lead to bulb rot.
Humidity
This plant enjoys moderate humidity levels, ideally between 40% and 60%.
To increase humidity, consider misting the leaves or placing a tray of water with pebbles beneath the pot. Signs of low humidity include browning leaf edges and stunted growth.
Temperature
Lilium auratum thrives in temperatures between 60°F and 75°F (15°C to 24°C).
It is hardy in USDA zones 5 to 9, tolerating light frost but not extreme heat. During the summer, ensure it is not exposed to temperatures above 85°F (29°C) for extended periods.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 or a slow-release fertilizer.
Fertilize every 4-6 weeks during the growing season, reducing frequency in the fall. Signs of nutrient deficiency include yellowing leaves and poor flowering.
Pruning
Prune Lilium auratum after flowering by cutting back the spent blooms and any yellowing leaves to promote healthy growth.
Use clean, sharp pruning shears to avoid disease. Deadheading encourages more blooms and keeps the plant looking tidy.
Repotting
Repot Lilium auratum every 2-3 years or when the bulbs become crowded.
Choose a pot that is 1-2 inches larger in diameter than the current pot. Signs it needs repotting include roots growing out of the drainage holes and poor growth. Carefully remove the plant, refresh the soil, and replant at the same depth.
Propagation
Propagation can be done through bulb division or seed sowing.
For bulb division, wait until the plant is dormant in late fall, carefully dig up the bulbs, and separate them. Replant immediately. For seeds, sow them in a well-draining mix in spring, covering lightly, and keep moist until germination.
When it's unhappy
Yellow leaves
Why it happens
This can be caused by over-watering or nutrient deficiency.
How to fix it
Check soil moisture levels and adjust watering accordingly. Fertilize if nutrient deficiency is suspected.
Root rot
Why it happens
Over-watering or poorly draining soil can lead to root rot.
How to fix it
Ensure proper drainage and reduce watering. If root rot is present, remove affected bulbs and replant in fresh soil.
Pest infestations
Why it happens
Common pests include aphids and spider mites.
How to fix it
Inspect the plant regularly and treat infestations with insecticidal soap or neem oil.
Wilting leaves
Why it happens
Under-watering or extreme heat can cause wilting.
How to fix it
Increase watering frequency and provide shade during the hottest part of the day.
Poor flowering
Why it happens
Insufficient light or nutrient deficiency may result in fewer blooms.
How to fix it
Ensure the plant receives adequate sunlight and fertilize regularly during the growing season.
Care through the year
Spring
In spring, begin regular watering and fertilizing as the plant emerges from dormancy. Monitor for pests and ensure it receives adequate sunlight.
Summer
During summer, maintain consistent moisture and provide some afternoon shade if temperatures soar. Deadhead spent blooms to encourage further flowering.
Fall
In fall, gradually reduce watering as the plant prepares for dormancy. Cut back any yellowing leaves and prepare for winter by mulching around the base.
Winter
In winter, keep the plant in a cool, dry location. Water sparingly to prevent rot, and avoid fertilizing until spring.
Toxicity & Safety
Lilium auratum is toxic to cats and dogs, with all parts of the plant being potentially harmful. Ingestion can lead to symptoms such as vomiting, lethargy, and in severe cases, kidney failure in cats. Keep out of reach of pets and children.
Good to know
How often should I water my Gold Rayed Lily?
Water your Gold Rayed Lily once a week, ensuring the soil is consistently moist but not soggy. Allow the top inch of soil to dry out between waterings.
What type of soil is best for Lilium auratum?
Lilium auratum prefers well-draining, loamy soil with a pH of 6.0 to 7.0. A mix of garden soil, compost, and perlite works well for optimal growth.
Why are my Gold Band Lily leaves turning yellow?
Yellow leaves can indicate over-watering or a nutrient deficiency. Check soil moisture and consider fertilizing if necessary.
When should I repot my Golden Rayed Lily?
Repot your Golden Rayed Lily every 2-3 years or when you notice roots growing out of the drainage holes. Choose a pot that is 1-2 inches larger in diameter.
What temperature is ideal for Lilium auratum?
Lilium auratum thrives in temperatures between 60°F and 75°F (15°C to 24°C). Protect it from extreme heat and frost.
How can I increase humidity for my Gold Rayed Lily?
To increase humidity, mist the leaves regularly or place a tray of water with pebbles beneath the pot. Aim for humidity levels between 40% and 60%.
Is Lilium auratum toxic to pets?
Yes, Lilium auratum is toxic to cats and dogs. All parts of the plant can cause serious health issues if ingested, so keep it out of reach.
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