Caucasian Stonecrop
Phedimus spurius
Phedimus spurius, commonly known as Caucasian Stonecrop, is a hardy succulent that thrives in sunny environments. Its attractive foliage and resilience make it a popular choice for rock gardens and ground cover.
Everything it needs
9 essentials at a glance
Watering
Phedimus spurius prefers to dry out between waterings.
Water deeply every 2-3 weeks during the growing season (spring and summer), reducing to once a month in fall and winter. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause leaves to shrivel and drop.
Light
This plant thrives in full sun, requiring at least 6 hours of direct sunlight daily.
Ideal placements include south or west-facing locations. It can tolerate partial shade but may become leggy and less vibrant in low light conditions.
Soil
Phedimus spurius prefers well-draining soil with a pH range of 6.0 to 7.0.
A mix of sandy soil and potting soil or a commercial cactus mix is recommended to ensure proper drainage.
Humidity
This plant thrives in low humidity environments, typically around 30-50%.
To increase humidity, consider misting occasionally or placing a humidity tray nearby. Signs of humidity stress include leaf curling and browning tips.
Temperature
The ideal temperature range for Phedimus spurius is 60-75°F (15-24°C).
It is hardy in zones 3-9, tolerating cold down to -30°F (-34°C) and heat up to 90°F (32°C). During extreme temperatures, provide some shade or protection.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10, applying once in early spring and again in mid-summer.
Signs of nutrient deficiency include stunted growth and pale leaves.
Pruning
Prune in early spring to remove any dead or damaged leaves and to shape the plant.
Use clean, sharp scissors or pruning shears. Deadheading is not necessary but can help maintain a tidy appearance.
Repotting
Repot every 2-3 years or when the plant outgrows its container.
Signs it needs repotting include roots growing out of the drainage holes and stunted growth. Choose a pot 1-2 inches larger in diameter, and follow with fresh soil.
Propagation
Propagation can be done through stem cuttings or division.
For stem cuttings, take a healthy 4-6 inch cutting, allow it to callous for a few days, then plant in well-draining soil. Division can be done in spring when the plant is actively growing. Best timing for both methods is in spring.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or poor drainage.
How to fix it
Reduce watering frequency and ensure the pot has adequate drainage holes.
Leggy growth
Why it happens
Insufficient light.
How to fix it
Move the plant to a brighter location with more direct sunlight.
Root rot
Why it happens
Excess moisture in the soil.
How to fix it
Remove the plant from its pot, trim away affected roots, and repot in fresh, dry soil.
Browning leaf tips
Why it happens
Low humidity or underwatering.
How to fix it
Increase humidity levels or adjust watering schedule to keep the soil slightly moist.
Pests (such as aphids)
Why it happens
Weak plant health or environmental stress.
How to fix it
Treat with insecticidal soap or neem oil, and ensure the plant is healthy and stress-free.
Care through the year
Spring
In spring, focus on pruning and repotting if necessary. Fertilize with a balanced fertilizer to encourage new growth.
Summer
During summer, ensure the plant receives adequate sunlight and water every 2-3 weeks. Monitor for pests and signs of stress.
Fall
In fall, reduce watering frequency as the plant enters dormancy. Prepare for winter by ensuring it is in a sheltered location.
Winter
In winter, water sparingly, allowing the soil to dry out completely. Protect from frost if grown outdoors.
Toxicity & Safety
Phedimus spurius is non-toxic to pets and children. However, ingestion of large quantities may cause mild gastrointestinal upset.
Good to know
How often should I water my Phedimus spurius?
Water every 2-3 weeks during the growing season, allowing the soil to dry out completely between waterings. In winter, reduce to once a month.
What light conditions are best for Caucasian Stonecrop?
Phedimus spurius thrives in full sun, needing at least 6 hours of direct sunlight daily for optimal growth and color.
Can I propagate Phedimus spurius from cuttings?
Yes, you can propagate through stem cuttings. Take a healthy cutting, let it callous for a few days, and then plant it in well-draining soil.
What type of soil is best for Caucasian Stonecrop?
A well-draining soil mix with a pH of 6.0 to 7.0 is ideal. A combination of sandy soil and potting mix works well.
Why are my Phedimus spurius leaves turning yellow?
Yellow leaves can indicate over-watering or poor drainage. Check the soil moisture and adjust your watering schedule accordingly.
Is Phedimus spurius safe for pets?
Yes, Caucasian Stonecrop is non-toxic to both pets and children, making it a safe choice for households.
When should I prune my Phedimus spurius?
Prune in early spring to remove dead or damaged leaves and shape the plant. Use clean, sharp tools for best results.
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