Devil's Walkingstick
Aralia Spinosa
Aralia Spinosa, commonly known as Devil's Walkingstick, is a striking perennial native to the southeastern United States. Its unique spiny stems and large, compound leaves make it a fascinating addition to any garden. This hardy plant not only adds visual interest but also attracts pollinators, making it a favorite among gardeners.
Everything it needs
9 essentials at a glance
Watering
Aralia Spinosa prefers consistently moist soil but should not be waterlogged.
Water deeply when the top inch of soil feels dry, typically every 1-2 weeks. In the summer, increase frequency as the plant actively grows. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and leaf drop.
Light
This plant thrives in partial shade to full sun, ideally receiving 4-6 hours of direct sunlight daily.
It can tolerate some shade but may not flower as profusely. Avoid placing it in areas with harsh afternoon sun, especially in hotter climates.
Soil
Aralia Spinosa prefers well-draining, loamy soil with a pH range of 6.0 to 7.0.
A mix of potting soil, compost, and perlite works well to ensure good drainage and nutrient availability. Ensure the pot has drainage holes to prevent water accumulation.
Humidity
This plant enjoys moderate to high humidity levels, ideally between 40-60%.
To increase humidity, consider misting the leaves or placing a humidifier nearby. Signs of humidity stress include browning leaf tips and leaf drop.
Temperature
Aralia Spinosa thrives in temperatures between 60°F to 80°F (15°C to 27°C).
It is hardy in USDA zones 4-9, tolerating cold down to -10°F (-23°C). Protect from extreme heat by providing shade during the hottest months.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 during the growing season, applying every 4-6 weeks.
Reduce feeding in the fall and winter. Signs of nutrient deficiency include stunted growth and yellowing leaves.
Pruning
Prune in late winter or early spring before new growth begins.
Use sharp, clean pruning shears to remove dead or damaged branches and to shape the plant. Deadheading spent flowers can encourage more blooms.
Repotting
Repot every 2-3 years or when the roots become pot-bound.
Choose a pot that is 1-2 inches larger in diameter. Signs it needs repotting include roots growing out of the drainage holes or water not absorbing. Carefully remove the plant, loosen the roots, and place it in fresh soil.
Propagation
Propagation can be done through seeds or root division.
For seeds, collect them in late summer, stratify for 30 days in a cool, moist environment, then sow in spring. For division, carefully separate roots during the dormant season (late fall or early spring) and replant immediately.
When it's unhappy
Yellow leaves
Why it happens
Often caused by over-watering or nutrient deficiency.
How to fix it
Check soil moisture levels and adjust watering accordingly. Consider fertilizing if nutrient deficiency is suspected.
Root rot
Why it happens
Excessive moisture and poor drainage.
How to fix it
Ensure proper drainage and reduce watering frequency. If root rot is suspected, repot the plant in fresh, dry soil.
Browning leaf tips
Why it happens
Low humidity levels or underwatering.
How to fix it
Increase humidity through misting or using a humidifier, and ensure consistent watering.
Wilting leaves
Why it happens
Under-watering or extreme heat.
How to fix it
Water the plant thoroughly and provide shade if temperatures are excessively high.
Pest infestations (e.g., aphids, spider mites)
Why it happens
Pests can thrive in dry conditions or when the plant is stressed.
How to fix it
Inspect regularly and treat with insecticidal soap or neem oil as needed.
Care through the year
Spring
In spring, focus on fertilizing as new growth emerges. Prune any dead branches and ensure the plant receives adequate water as temperatures rise.
Summer
During summer, monitor soil moisture closely and increase watering frequency. Provide some afternoon shade in extremely hot weather to prevent leaf scorch.
Fall
In fall, reduce watering as the plant prepares for dormancy. Consider applying a slow-release fertilizer to support root health through winter.
Winter
In winter, protect the plant from extreme cold and reduce watering significantly. Ensure it is in a location that receives indirect light.
Toxicity & Safety
Aralia Spinosa is considered mildly toxic to pets and humans. The berries and leaves can cause gastrointestinal upset if ingested. Symptoms may include nausea, vomiting, and diarrhea.
Good to know
Why are my Aralia Spinosa leaves turning yellow?
Yellowing leaves on Aralia Spinosa can indicate over-watering or a nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly.
How often should I water my Devil's Walkingstick?
Water your Aralia Spinosa every 1-2 weeks, allowing the top inch of soil to dry out between waterings. Adjust frequency based on seasonal growth.
What type of soil is best for Aralia Spinosa?
This plant thrives in well-draining, loamy soil with a pH of 6.0 to 7.0. A mix of potting soil, compost, and perlite is ideal.
Can I grow Aralia Spinosa indoors?
Yes, Aralia Spinosa can be grown indoors as long as it receives adequate light and humidity. Place it near a window with indirect sunlight.
How do I propagate Aralia Spinosa?
You can propagate Aralia Spinosa through seeds or root division. For seeds, stratify them for 30 days before sowing in spring. For division, separate roots in late fall or early spring.
What pests affect Aralia Spinosa?
Common pests include aphids and spider mites. Regularly inspect your plant and treat infestations with insecticidal soap or neem oil.
When is the best time to prune Aralia Spinosa?
Prune Aralia Spinosa in late winter or early spring before new growth begins to remove dead branches and shape the plant.
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