Redosier Dogwood
Cornus sericeaUSDA | Grow Zone
3-8Outdoors all year in zones 3 to 8. Anywhere colder, keep it as a houseplant.
- Light
- Full sun to partial shade
- Water
- Consistently moist soil
- Humidity
- 40-70% humidity
- Temperature
- 60-75°F (15-24°C)
- Difficulty
- Beginner
- Growth
- Moderate
- Mature size
- 6-9 ft tall, 6-8 ft wide
Cornus sericea, commonly known as Redosier Dogwood, is a stunning shrub native to North America. Its vibrant red stems and white flowers make it a popular choice for gardens, providing year-round interest and attracting wildlife.
Ask Vesper about Redosier Dogwood
Ideal temperature
60-75°F is where it grows fastest.
Spacing and harvest
- Mature size
- 6-9 ft tall, 6-8 ft wide
- Plant apart
- 72-96 in
- Frost
- Hardy: survives frost
Everything it needs
9 essentials at a glance
Watering
Cornus sericea prefers consistently moist soil, especially during the growing season.
Water deeply once a week, allowing the top inch of soil to dry out between waterings. In hotter months, increase frequency to twice a week. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and leaf drop.
Light
This plant thrives in full sun to partial shade, ideally receiving at least 6 hours of direct sunlight daily.
It can tolerate some shade but may not produce as vibrant foliage or flowers. In very hot climates, providing afternoon shade can help prevent leaf scorch.
Soil
Cornus sericea prefers well-draining, moist soil with a pH range of 5.0 to 7.0.
A mix of loamy soil with organic matter, such as compost, is recommended to enhance drainage and nutrient content. Ensure the pot or garden bed has good drainage to prevent waterlogging.
Humidity
This dogwood thrives in moderate to high humidity levels, ideally between 40-70%.
To increase humidity, consider misting the leaves or placing a humidity tray nearby. Signs of low humidity include browning leaf tips and leaf drop.
Temperature
Cornus sericea grows best in temperatures between 60-75°F (15-24°C) and is hardy in USDA zones 3-8.
It can tolerate cold temperatures down to -30°F (-34°C) but may struggle in extreme heat above 90°F (32°C).
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10, applying it in early spring as new growth begins.
Fertilize every 6-8 weeks during the growing season. Signs of nutrient deficiency include stunted growth and yellowing leaves.
Pruning
Prune Cornus sericea in late winter or early spring before new growth starts.
Use sharp, clean pruning shears to remove dead or damaged branches, and shape the plant to encourage bushiness. Deadheading is not necessary, but removing spent flowers can promote a tidier appearance.
Repotting
Repot in early spring if the plant has outgrown its container, typically every 2-3 years.
Choose a pot that is 1-2 inches larger in diameter. Signs it needs repotting include roots growing out of the drainage holes and stunted growth. To repot, gently remove the plant from its old pot, loosen the roots, and place it in fresh potting mix.
Propagation
Propagation can be achieved through stem cuttings or division.
For stem cuttings, take 4-6 inch cuttings in late spring, dip them in rooting hormone, and plant them in a moist potting mix. Keep them in a warm, humid environment until roots develop. Division is best done in early spring when the plant is actively growing.
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 and reduce watering if necessary. Fertilize with a balanced fertilizer to address nutrient issues.
Leaf drop
Why it happens
Leaf drop may occur due to stress from drought or low humidity.
How to fix it
Ensure consistent watering and increase humidity around the plant.
Stunted growth
Why it happens
This can result from poor soil quality or insufficient light.
How to fix it
Improve soil quality with organic matter and ensure the plant receives adequate sunlight.
Powdery mildew
Why it happens
High humidity and poor air circulation can lead to this fungal issue.
How to fix it
Increase air circulation around the plant and apply a fungicide if necessary.
Root rot
Why it happens
Over-watering or poorly draining soil can cause root rot.
How to fix it
Ensure proper drainage and reduce watering frequency to allow the soil to dry out.
Care through the year
Spring
In spring, apply a balanced fertilizer as new growth begins. Prune any dead or damaged branches to encourage bushiness and healthy growth.
Summer
During summer, ensure consistent watering, especially in hot weather. Monitor for pests and diseases, and maintain humidity levels.
Fall
In fall, reduce watering as the plant enters dormancy. Remove any fallen leaves to prevent disease and prepare for winter.
Winter
In winter, protect the plant from harsh winds and extreme cold. Mulch around the base to insulate the roots and retain moisture.
Toxicity & Safety
Cornus sericea is non-toxic to pets and children. It is safe to have around cats and dogs, with no known harmful effects from ingestion.
Good to know
Why are my Redosier Dogwood leaves turning yellow?
Yellowing leaves can indicate over-watering or nutrient deficiency. Check the soil moisture and adjust your watering schedule, and consider fertilizing if needed.
How often should I water my Cornus sericea?
Water deeply once a week, allowing the top inch of soil to dry out between waterings. In hotter months, you may need to water twice a week.
What is the best light for Redosier Dogwood?
Cornus sericea thrives in full sun to partial shade, ideally receiving at least 6 hours of direct sunlight each day for optimal growth.
When is the best time to prune my Cornus sericea?
Prune in late winter or early spring before new growth begins to remove dead or damaged branches and shape the plant.
How can I propagate Redosier Dogwood?
You can propagate Cornus sericea through stem cuttings taken in late spring or by division in early spring. Both methods are effective for creating new plants.
What soil type is best for Cornus sericea?
This plant prefers well-draining, moist soil with a pH range of 5.0 to 7.0. A mix of loamy soil with organic matter is ideal.
Is Redosier Dogwood toxic to pets?
No, Cornus sericea is non-toxic to both pets and children, making it a safe choice for gardens and landscapes.
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