Viburnum nudum — an easy houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Viburnum nudum

Viburnum Nudum

Updated · 205 observations
Photo · (c) chris buelow, some rights reserved (CC BY-NC), uploaded by chris buelow COURTESY INATURALIST
ON THIS PLANT

Viburnum nudum, commonly known as possumhaw viburnum, is a deciduous shrub native to the eastern United States. Typically, it reaches a height of 6-12 feet and exhibits an upright, spreading habit. The dark green, glossy leaves have slightly serrated edges and transform into vibrant shades of red and purple in the fall.

In late spring or early summer, possumhaw viburnum produces clusters of small white flowers, which are then followed by bright red berries in late summer or early fall. These berries persist on the plant well into winter, providing a vital food source for birds during that time.

This plant thrives in moist to wet soils but can tolerate some drought conditions once established. It grows best in full sun to partial shade, though it can also adapt to full shade conditions.

Possumhaw viburnum is an excellent choice for naturalizing areas or incorporating into mixed border plantings due to its attractive foliage, flowers, and fruit that provide interest through multiple seasons. Additionally, it offers essential habitat for wildlife, particularly birds, who rely on its berries when food is scarce in winter.

Overall, Viburnum nudum is a visually appealing shrub with year-round interest and ecological benefits, making it a valuable addition to any landscape design plan.

A note from PlantMom

Smooth witherod has strong disease resistance and is usually not susceptible to illnesses. In terms of care, this plant is fairly low-maintenance. When grown outdoors it needs only minimal watering, and larger specimens typically do not need pruning. Smaller plants, however, should be trimmed after they finish blooming. Smooth witherod is suitable for anyone with outdoor space, such as a garden or a deck, and does not require much gardening experience.

— PlantMom
CARE GUIDE

How to keep Viburnum Nudum.

Light

Smooth witherod performs best in full sun but can tolerate some shade. Native to open forests, the plant stays healthiest with abundant sunlight. Insufficient light can impair flowering. Excessive sun exposure without enough moisture can cause scorching.

Water

Smooth witherod thrives in environments with seasonal rainfall and prefers consistently moist soil. Once established, it is moderately drought-tolerant but benefits from watering every 1-2 weeks. This adaptable shrub is ideal for outdoor settings, where it enhances the landscape with its lush foliage and attractive fruit displays.

Temperature

The smooth witherod prefers an average temperature range of 41 to 95 ℉ (5 to 35 ℃). It is naturally found in temperate regions where average temperatures range from 41 to 68 ℉ (5 to 20 ℃). In winter it can tolerate colder conditions, but in summer it prefers shade from direct sunlight to prevent heat stress.

Fertilizer

Encourage healthy growth by fertilizing your Smooth witherod in early spring. Regular feeding boosts overall vigor, producing strong growth, improved tolerance of harsh conditions, and increased resistance to pests and diseases. Stick to a consistent fertilization schedule for your Smooth witherod to preserve bright, deeply colored foliage and a lush appearance.

Pruning

Smooth witherod features glossy leaves and white flowers and benefits from pruning in early spring. To maintain its shape and encourage blooming, remove any dead or crossing branches to improve air circulation, and thin the canopy to allow sunlight to reach all parts of the plant. Be sure to use clean, sharp tools to avoid causing damage.

CHARACTERISTICS

Botanical profile.

Plant Type
Shrub
Life Cycle
Perennial
Genus
Viburnum
Family
Viburnaceae
Hardiness Zone
5-9
Mature Height
1.52 m to 1.83 m
Mature Spread
1.52 m to 1.83 m
Leaf Color
Green, Red, Purple
Leaf Type
Deciduous
Flower Color
White, Cream
Flower Size
2.54 cm
Bloom Time
Late spring, Early summer
Planting Time
Spring, Autumn
Harvest Time
Mid summer
Native Area
Canada
ALSO KNOWN AS

Other names.

en Smooth witherod en Possum haw en Possumhaw Viburnum en Wild Raisin en Smooth white-rod en Raisin en Northern raisin
FREQUENTLY ASKED

Reader questions.

How should I water Smooth witherod plants?

Soaker hoses are a great way to keep leaves and flowers moist without wetting the entire plant. To use them, lay the hose around the plant and leave it on for about 30 to 45 minutes until the soil is moist but not overly wet. You can connect your regular hose to the soaker hose and cover it with mulch. Alternatively, some people use drip feeders to keep the soil moist throughout the day. When watering Smooth witherod in pots, it's best to use a watering can. Pour water slowly until you see it dripping down from the bottom of the pots. Portable cans are helpful for reaching the soil and allowing the water to penetrate the roots deeply for better growth.

Why should I put fertilizer on my Smooth witherod?

To ensure the best overall health for your Smooth witherod, give it regular fertilization regardless of the type you have. Proper nutrients will boost its growth and make it more resilient to harsh conditions, as well as help it fight diseases and pests. Keeping your Smooth witherod's foliage intact is important because it adds to its attractiveness. Maintain a specific fertilization schedule for your Smooth witherod to encourage vibrant, lush leaves with a deep color.

What are the sunlight requirements for Smooth witherod?

Smooth witherod requires full sun exposure to thrive, benefitting from more than 6 hours of sunlight daily. It can also grow in partial sun, with about 3-6 hours of sunlight. This plant originates from open forests and maintains optimal health when it receives plenty of sunlight, although it can endure some shade. Insufficient sunlight may affect its flowering, and overexposure to the sun without adequate moisture can lead to scorching. Observing how sunlight moves through your garden and choosing spots that provide a balance of light and shade will ensure the happiness of your plants.

What is the preferred temperature range for Smooth Witherod?

Smooth Witherod prefers a temperature range of 41 to 95 °F (5 to 35 °C). Naturally, it grows in temperate regions where average temperatures vary from 41 to 68 °F (5 to 20 °C). While it can tolerate colder temperatures in winter without requiring special frost protection measures, during summer, it is best to provide shade to prevent heat stress.

What should I do if I give Smooth witherod too much or too little water?

If you have overwatered Smooth witherod, it is important to take steps to prevent further damage. Smooth witherod plants are hardy, which means they have a better chance of surviving. To help the plant recover, allow it to dry out by stopping watering. It is crucial to avoid keeping the roots sitting in water for too long, so aerating the soil can be helpful. Some signs of overwatering include the premature yellowing and falling of leaves, a decrease in flowers, and misshapen buds. In more severe cases, the leaves may become wilted and brown, indicating potential root rot. Interestingly, the symptoms of underwatering can be similar. If the Smooth witherod plant is wilting, it may be a sign of not enough watering. Check the moisture of the soil by inserting your finger into it; if the soil is excessively dry, the plant may be dehydrated. To address this issue, consider adding water in the evening. Remember to regularly check the soil moisture and follow the recommended watering schedule, which typically involves watering in the morning.

When should I fertilize my Smooth witherod?

To ensure healthy growth of your Smooth witherod, the first fertilization should take place in late winter or early spring. This provides the necessary nutrients for the plant to thrive once the weather warms up. If you live in a warm climate region, it is beneficial to give your Smooth witherod an additional fertilizer feeding in early fall. This not only adds nutrients to the soil for the following growing season but also helps the plant withstand the winter cold without foliage damage. Fertilizing earlier in fall ensures that the new branches have enough time to grow and be resilient during the cold winter.

How can I provide adequate lighting for Smooth witherod indoors?

For indoor Smooth witherod plants, artificial lighting can be a crucial solution when natural sunlight is insufficient, especially during winter or in less sunny spaces. LED lights are recommended because they can be customized to provide the wavelengths of light needed by plants. Full sun plants need 30-50W/sq ft, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft of artificial light. The light source should be placed 12-36 inches above the plant to mimic natural sunlight, and most plants require 8-12 hours of light per day to mimic natural daylight hours effectively.

How can I protect Smooth Witherod in winter?

To protect Smooth Witherod during winter, especially if temperatures are expected to drop below the plant's cold tolerance limit, you can wrap the trunk and branches with non-woven fabric or cloth. Additionally, watering the plant abundantly before the first freeze of autumn to ensure the soil remains moist and enters a frozen state can help prevent drought and water scarcity during winter and early spring.

How frequently do I need to water Smooth witherod?

For the Smooth witherod plant, it is recommended to water it deeply two to three times a week. However, if you live in a hot climate, you should water it more frequently. The plant has average water needs and requires moist but well-drained soil. A useful tip is to check the soil's moisture level by feeling it with your fingertips. If it is dry about 2-4 inches down, it might be the right time to water the plant. If the plant is outdoors, watering it 1-2 times a week is sufficient because it receives additional moisture from rainwater. This method is ideal for conserving water.

When is it better not to add fertilizer to my Smooth witherod?

There are specific times when you should avoid fertilizing your Smooth witherod. One is during early and mid-winter when the plant is dormant and doesn't require feeding. Another is during late spring and summer, when the weather is hotter and drier, which can have a detrimental effect on the plant if fertilized. To prevent any problems, it is best to stick to a fertilization schedule that involves feeding only in early spring and early fall.

What are signs of insufficient light in Smooth witherod?

Signs of insufficient light in Smooth witherod include the growth of smaller leaves than usual once they have matured, leggy or sparse growth with longer spaces between leaves or stems, which can make the plant appear weak. The plant may also experience faster leaf drop as it conserves resources, or halt new growth entirely, entering a survival mode due to poor light conditions. New leaves may develop with paler colors, indicating a lack of chlorophyll and essential nutrients. Lastly, the plant may suffer from chlorosis, where leaves lose their green color and turn yellow due to a breakdown of chlorophyll.

What are the symptoms and solutions for Smooth Witherod exposed to low temperatures?

If Smooth Witherod is exposed to temperatures below its cold tolerance limit, there may not be noticeable immediate changes, but the branches can become brittle and dry by spring, failing to produce new shoots. The solution for this is to prune away any dead branches in the spring to promote new growth.

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