Starting a cedar tree from a cutting is an effective way to grow a healthy, young tree with the same characteristics as the parent. Cedar trees, from the classic cedrus deodara to the thuja plicata and eastern red cedar (juniperus virginiana), are popular choices for evergreen landscaping and privacy screens. Here’s a guide to help you successfully propagate cedar trees using semi-hardwood stem cuttings.

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Choosing the Right Type of Cedar Tree

There are many types of cedar trees, each with unique growth patterns, environmental conditions, and care tips.

True cedars are native to the Mediterranean region and grow best in areas with dry summers:

• cedar of Lebanon (cedrus libani)
• atlas cedar (cedrus atlantica)
• deodar cedar (cedrus deodara)

On the other hand, these species are native to North America and thrive in a variety of soils:

• western red cedar (thuja plicata)
• northern white cedar (thuja occidentalis)

For this guide, we’ll focus on evergreen trees like eastern red cedar (juniperus virginiana) and northern white cedar, both of which are popular choices for home landscaping across the United States. Choosing the best time for propagation can improve success rates, as stem cuttings require specific conditions to root properly.

Preparing the Cutting for Rooting

After taking the cutting, remove leaves from the bottom half, leaving only a few leaves near the top. This helps the cutting focus energy on root development rather than sustaining excess foliage. Dip the cut end into rooting hormone, which encourages faster root formation. Place the cutting into a pot of well-draining soil or a mixture of moist soil and perlite. Make sure the soil type is suitable for cedar cuttings; well-drained, sandy soils tend to yield the best results.

To trap humidity, cover the cutting and pot with a plastic bag or a clam shell device. This prevents the cutting from drying out, which is essential for root development. Place the setup in partial shade with indirect sunlight. Although cedar trees prefer full sun, cuttings do better in filtered light during the initial rooting stage.

Ideal Environmental Conditions for Cedar Cuttings

Cedar cuttings root best in stable temperatures. Avoid extreme temperatures, as they can damage new roots or prevent rooting altogether. Cedar trees are hardy and can adapt to a variety of soil types and environmental conditions. However, keep cuttings in a place where they won’t experience dry summers or frost.

Regular misting can help keep the cutting hydrated, but avoid giving it too much water, which can lead to root rot. Check the soil regularly to ensure it remains evenly moist without becoming waterlogged.

Transplanting Rooted Cedar Cuttings

Once the cutting has developed a root ball, it’s time to transplant it into a larger pot or its permanent location outdoors. This step is usually done in late spring or early summer, once the risk of frost has passed, and the plant can handle direct sunlight.

To transplant, dig a hole twice the size of the root ball. Place the root ball in the center of the hole and ensure the cutting sits at the same soil level as it was in the pot. Backfill the hole with soil, pressing firmly around the cutting to eliminate air pockets. Add a layer of mulch around the base to retain moisture and protect against weeds.

Newly planted trees need much water initially, especially during the first couple of years. However, make sure the soil is well-draining, as cedars do not tolerate standing water.

Long-Term Care Tips for Cedar Trees

Growing cedar trees from cuttings requires patience, as they can take several years to reach mature height. Regular pruning helps maintain their conical shape and removes any diseased branches that could affect the tree’s health.

Cedar trees prefer hours of sunlight but can tolerate some shade, especially in their early years. Understory plants that thrive in partial shade are great additions to a cedar landscape, adding diversity without competing for sunlight.

Preventing Pests and Diseases

Cedar trees are generally hardy but can face issues with root rot in overly damp conditions. Plant them in well-drained soil to avoid this issue. Pests like spider mites can be controlled with regular watering and occasional use of insecticidal soap if needed. We highly recommend keeping neem oil on hand to manage infestations at the first sign of an issue. Keep an eye on your cedar for any signs of pest infestations or fungal diseases, especially in humid environments.

Common Types of Cedar Trees for Propagation

Below are some popular cedar varieties for propagation and their distinct characteristics:

• Eastern Red Cedar (Juniperus virginiana): Known for its reddish-brown bark, this medium-sized evergreen tree is native to eastern North America and is tolerant of many soil types.
• Western Red Cedar (Thuja plicata): Native to the Pacific coast, this cedar has a reddish-brown hue and can tolerate extreme temperatures better than most.
• Deodar Cedar (Cedrus deodara): Native to the Mediterranean region, it features a lovely conical shape and grows well in full sun.
• Northern White Cedar (Thuja occidentalis): Commonly found in eastern North America, it’s a popular choice for landscaping due to its adaptability to different soil types and partial shade tolerance.

Propagation Tips for Best Success

Using semi-hardwood cuttings during the right time of year and planting them in ideal conditions gives you the best chance of success. By understanding your tree’s native habitat and adapting your care routine to match, you’ll encourage strong, healthy growth from your cutting. Propagation by cuttings may not be as quick as starting from western red cedar seeds, but it ensures the new tree will be a genetic match to the original, guaranteeing you get the exact trees you want in your landscape.

For gardeners interested in vegetative propagation, growing a cedar tree from a cutting provides a rewarding way to create new trees that can reach large tree sizes. Just remember to give them plenty of space to grow, avoid extreme temperatures, and provide well-drained soil for a robust start.

In the end, by following these steps and providing careful attention to environmental needs, your cedar cutting will have the best chance to thrive and become a beautiful, healthy addition to your garden or landscape.