Wallich's Glorybower
Clerodendrum Wallichii
Clerodendrum Wallichii, commonly known as Wallich's Glorybower, is a stunning tropical plant native to Asia. With its vibrant flowers and lush foliage, it adds a tropical flair to any garden or indoor space, making it a popular choice among plant enthusiasts.
Everything it needs
9 essentials at a glance
Watering
Water Clerodendrum Wallichii thoroughly when the top inch of soil feels dry.
During the growing season (spring and summer), water every 1-2 weeks, allowing excess water to drain out. In fall and winter, reduce watering to every 2-3 weeks. 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 prefers bright, indirect light but can tolerate some direct sun, especially in the morning. Avoid placing it in full shade, as this can hinder its growth and flowering.
Soil
Clerodendrum Wallichii prefers well-draining soil with a pH range of 6.0 to 7.0.
A mix of potting soil, perlite, and compost works well to ensure proper drainage and nutrient availability. Ensure the pot has drainage holes to prevent waterlogging.
Humidity
This plant enjoys high humidity levels of 50-70%.
To increase humidity, consider misting the leaves regularly, placing a humidifier nearby, or using a pebble tray filled with water. Signs of low humidity stress include browning leaf tips and leaf drop.
Temperature
Clerodendrum Wallichii thrives in temperatures between 65-80°F (18-27°C).
It is not frost-tolerant and should be protected from temperatures below 50°F (10°C). This plant can be grown outdoors in USDA hardiness zones 9-11.
Fertilizing
Use a balanced liquid fertilizer with an NPK ratio of 10-10-10 every 4-6 weeks during the growing season.
In fall and winter, reduce feeding to once every 8 weeks. Signs of nutrient deficiency include yellowing leaves (nitrogen), poor flowering (phosphorus), and stunted growth (potassium).
Pruning
Prune Clerodendrum Wallichii in late winter or early spring to encourage bushier growth and remove any dead or damaged branches.
Use clean, sharp pruning shears to make clean cuts. Deadheading spent flowers can promote further blooming throughout the season.
Repotting
Repot every 1-2 years or when the plant becomes root-bound, indicated by roots growing out of the drainage holes.
Choose a pot 1-2 inches larger in diameter. To repot, gently remove the plant from its current pot, loosen the roots, and place it in fresh potting mix, ensuring the root ball is at the same depth as before.
Propagation
Propagation can be done through stem cuttings or seeds.
For stem cuttings, take 4-6 inch cuttings from healthy stems in spring, remove lower leaves, and place them in a pot with moist potting mix. Keep the cuttings in a warm, humid environment until roots develop, usually within 4-6 weeks. Seeds can be sown in a seed-starting mix in spring, keeping them moist until germination.
When it's unhappy
Yellow leaves
Why it happens
Often caused by over-watering or nutrient deficiency.
How to fix it
Check soil moisture and reduce watering frequency. Fertilize with a balanced fertilizer if nutrient deficiency is suspected.
Leaf drop
Why it happens
Can occur due to sudden temperature changes or low humidity.
How to fix it
Maintain consistent temperatures and increase humidity levels by misting or using a humidifier.
Root rot
Why it happens
Caused by over-watering and poorly draining soil.
How to fix it
Ensure proper drainage and allow the soil to dry out between waterings. If root rot is present, repot the plant in fresh, dry soil.
Pest infestations (e.g., aphids, spider mites)
Why it happens
Common pests attracted to stressed plants.
How to fix it
Inspect regularly and treat infestations with insecticidal soap or neem oil. Maintain plant health to prevent pest issues.
Poor flowering
Why it happens
Insufficient light or nutrient deficiency.
How to fix it
Ensure the plant receives adequate sunlight and fertilize regularly during the growing season.
Care through the year
Spring
In spring, resume regular watering and fertilizing as the plant begins to grow actively. Prune any dead or damaged branches to encourage new growth.
Summer
During summer, ensure the plant receives adequate sunlight and maintain consistent moisture. Monitor humidity levels and mist regularly if needed.
Fall
In fall, gradually reduce watering as the plant enters dormancy. Continue to fertilize every 4-6 weeks until late fall.
Winter
In winter, water less frequently, allowing the soil to dry out more between waterings. Keep the plant in a warm location, away from drafts.
Toxicity & Safety
Clerodendrum Wallichii is considered mildly toxic to pets and humans. The leaves and stems can cause gastrointestinal upset if ingested, leading to symptoms such as vomiting and diarrhea. Keep out of reach of children and pets.
Good to know
Why are my Clerodendrum Wallichii leaves turning yellow?
Yellow leaves can indicate over-watering or a nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly, and consider fertilizing if nutrients are lacking.
How often should I water my Clerodendrum Wallichii?
Water your Clerodendrum Wallichii every 1-2 weeks during the growing season, allowing the top inch of soil to dry out between waterings. In fall and winter, reduce watering to every 2-3 weeks.
What type of soil is best for Clerodendrum Wallichii?
Clerodendrum Wallichii prefers well-draining soil with a pH of 6.0 to 7.0. A mix of potting soil, perlite, and compost is ideal for promoting healthy growth.
How can I increase humidity for my Clerodendrum Wallichii?
To increase humidity, mist the leaves regularly, use a humidifier, or place a pebble tray filled with water beneath the pot. Aim for humidity levels of 50-70% for optimal growth.
When is the best time to prune Clerodendrum Wallichii?
The best time to prune Clerodendrum Wallichii is in late winter or early spring before new growth begins. This encourages bushier growth and removes any dead or damaged branches.
Can I propagate Clerodendrum Wallichii from cuttings?
Yes, you can propagate Clerodendrum Wallichii from stem cuttings taken in spring. Use healthy stems, remove lower leaves, and place them in moist potting mix until roots develop.
What are the signs of root rot in Clerodendrum Wallichii?
Signs of root rot include yellowing leaves, wilting, and a foul smell from the soil. If you suspect root rot, check the roots and repot the plant in fresh, dry soil if necessary.
Grows well with
Related care guides
Explore remedies
Track this plant in your garden.
Set care reminders, log growth, and join a community of plant lovers.