Sacred Bamboo
Nandina domestica
Nandina domestica, commonly known as Sacred Bamboo or Heavenly Bamboo, is a versatile shrub valued for its stunning foliage and colorful berries. Native to East Asia, it is often grown for its ornamental appeal and ability to thrive in various garden settings.
Everything it needs
9 essentials at a glance
Watering
Nandina domestica prefers to be watered regularly, allowing the top inch of soil to dry out between waterings.
In the growing season (spring and summer), water every 1-2 weeks, increasing frequency during hot weather. In fall and winter, reduce watering to every 2-4 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause leaf drop and browning tips.
Light
Nandina thrives in full sun to partial shade, ideally receiving 4-6 hours of direct sunlight daily.
For optimal growth, place it in a location that gets morning sun and afternoon shade, especially in hotter climates. It can tolerate some shade but may become leggy and less vibrant without sufficient light.
Soil
The ideal soil for Nandina is well-draining, loamy soil with a pH range of 5.5 to 7.0.
It benefits from a potting mix that includes peat moss, perlite, and compost to ensure good drainage while retaining some moisture. Avoid heavy clay soils that can retain excess water.
Humidity
Nandina domestica prefers moderate humidity levels, around 40-60%.
To increase humidity, mist the leaves regularly or place a humidifier nearby. If the leaves start to curl or brown at the edges, it may indicate low humidity levels.
Temperature
This plant thrives in temperatures between 60-75°F (15-24°C) and is hardy in zones 6-9.
It can tolerate brief periods of cold down to 0°F (-18°C) but may suffer damage in extreme heat above 90°F (32°C). In winter, protect it from harsh winds and freezing temperatures.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10 or 14-14-14.
Fertilize every 6-8 weeks during the growing season, and reduce or stop fertilizing in fall and winter. Signs of nutrient deficiency include yellowing leaves and poor growth, indicating a need for more nutrients.
Pruning
Prune Nandina in late winter or early spring to maintain its shape and remove any dead or damaged branches.
Use sharp, clean pruning shears to make clean cuts. You can also deadhead spent flowers to encourage new growth and improve appearance.
Repotting
Repot Nandina 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 than the current one. Signs it needs repotting include stunted growth and water not absorbing properly. When repotting, gently remove the plant from its pot, loosen the roots, and place it in fresh potting mix.
Propagation
Nandina can be propagated through stem cuttings or division.
For stem cuttings, take 4-6 inch cuttings in late spring or early summer, remove the lower leaves, and place them in a moist potting mix. Keep the cuttings in a warm, humid environment until roots develop, which can take 4-6 weeks. Division can be done in spring by carefully separating the root clumps and replanting them.
When it's unhappy
Yellow leaves
Why it happens
This can be caused by over-watering, nutrient deficiency, or insufficient light.
How to fix it
Check the soil moisture, adjust watering practices, and ensure the plant receives adequate light.
Leaf drop
Why it happens
Leaf drop can occur due to stress from temperature changes, over-watering, or under-watering.
How to fix it
Maintain consistent watering and protect the plant from extreme temperature fluctuations.
Brown leaf tips
Why it happens
Brown tips may indicate low humidity or under-watering.
How to fix it
Increase humidity around the plant and ensure consistent watering.
Leggy growth
Why it happens
This occurs when the plant does not receive enough light.
How to fix it
Move the plant to a brighter location to encourage bushier growth.
Root rot
Why it happens
Root rot is typically caused by over-watering or poorly draining soil.
How to fix it
Allow the soil to dry out before watering again and ensure proper drainage.
Care through the year
Spring
In spring, fertilize Nandina to promote new growth and prune any dead branches. Monitor for pests and ensure adequate watering as temperatures rise.
Summer
During summer, ensure the plant receives enough water, especially in hot weather. Mulch around the base to retain moisture and protect roots from heat.
Fall
In fall, reduce watering frequency as the plant enters dormancy. Remove any spent flowers and prepare for winter by mulching around the base.
Winter
In winter, protect Nandina from harsh winds and freezing temperatures. Water sparingly, only when the soil is dry, and avoid fertilizing during this dormant period.
Toxicity & Safety
Nandina domestica is mildly toxic to pets, particularly dogs and cats, if ingested. The berries and leaves contain compounds that can cause vomiting, diarrhea, and lethargy. It is advisable to keep this plant out of reach of children and pets.
Good to know
How often should I water my Nandina domestica?
Water your Nandina 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 2-4 weeks.
Why are my Nandina leaves turning yellow?
Yellow leaves can indicate over-watering, nutrient deficiency, or insufficient light. Check your watering schedule and ensure the plant is getting enough sunlight.
What type of soil is best for Nandina?
Nandina prefers well-draining, loamy soil with a pH range of 5.5 to 7.0. A mix of peat moss, perlite, and compost is ideal for healthy growth.
Can Nandina grow in shade?
Yes, Nandina can grow in partial shade, but it thrives best in full sun. Insufficient light can lead to leggy growth and less vibrant foliage.
How do I propagate Nandina domestica?
You can propagate Nandina through stem cuttings or division. For cuttings, take 4-6 inch sections in late spring, remove lower leaves, and place them in moist potting mix.
When should I prune my Nandina?
Prune Nandina in late winter or early spring to shape the plant and remove any dead or damaged branches. This encourages new growth in the spring.
Is Nandina domestica toxic to pets?
Yes, Nandina is mildly toxic to pets, especially if they ingest the berries or leaves. Symptoms may include vomiting and lethargy.
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