Alnus serrulata ~ Smooth Alder
Alnus serrulata ~ Smooth Alder
Alnus serrulata ~ Smooth Alder

Smooth Alder

Alnus serrulata

Regular price$49.97
  • We currently have 0 available.
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  • Locally Grown

A bare-root seedling is a young plant that is sold and
transported without soil or a container, only during the dormant season. These
seedlings are usually shipped without any soil or potting medium around them.
They are a common way to establish trees and shrubs. Here are some key
characteristics of bare-root seedlings:

No Soil or Container: As the name suggests, bare-root
seedlings are devoid of soil or any form of potting medium. The roots of the
plant are without soil and are typically wrapped in a plastic liner to prevent
them from drying out during transportation.

Dormant Season: Bare-root seedlings are typically available
and shipped during the plant's dormant season, which is usually in late fall through
winter. This is when the plant is not actively growing, making it easier to
handle and transport.

Easy Handling: Because they lack soil and containers,
bare-root seedlings are lightweight and easy to handle. This also allows them
to be shipped using UPS and FedEx ground services.

Planting a bare-root seedling is a straightforward process
if you follow the right steps. Here's a step-by-step guide on how to plant a
bare-root seedling:

Materials Needed:

  • Bare-root seedling
  • Shovel or spade
  • Watering can or hose
  • Organic compost (optional)
  • Mulch (optional)


Prepare the Site: Choose a suitable planting location making
sure the area is free from weeds and debris.

Dig a Hole: Use a shovel or spade to dig a hole that is wide
enough to accommodate the spread-out roots of the seedling and deep enough to
allow the roots to be positioned at their natural depth. The exact dimensions
of the hole will depend on the size of the root system, but a typical depth for
most bare-root seedlings is about as deep as the roots and wide enough to allow
for proper root spreading.

Soak the Roots: Before planting, it's a good idea to soak
the bare-root seedling's roots in a bucket of water for a few hours. This will
help rehydrate the roots and reduce transplant shock.

Position the Seedling: Place the seedling in the center of
the hole, ensuring that the roots are spread out and not bent or cramped. The
crown (the point where the stem meets the roots) should be at or slightly above
ground level.

Fill the Hole: Backfill the hole with soil, packing it gently
as you go to eliminate air pockets. Ensure that the soil is in contact with the
roots. If you have improved your soil with organic compost, you can mix some of
it with the backfill soil.

Water Thoroughly: After planting, water the seedling
thoroughly to settle the soil and provide moisture to the roots. Keep the soil
consistently moist in the weeks following planting, but avoid overwatering, as
this can lead to root rot.

Apply Mulch (Optional): To conserve moisture and control
weeds, you can apply a layer of mulch around the base of the seedling. However,
be sure to keep the mulch away from the stem to prevent moisture-related

Stake If Necessary: If your seedling is tall and likely to
be top-heavy or subjected to strong winds, you can stake it to provide support.
Use soft ties to secure the tree to the stake, allowing some flexibility for
natural movement.

Monitor and Care: Regularly monitor the newly planted
seedling for signs of stress, such as wilting or yellowing leaves. Keep up with
a consistent watering schedule and consider adding fertilizer or nutrients as
needed based on soil tests and plant requirements.

Protection: If planting during the winter, consider
protecting the seedling with a winter wrap or tree guard to shield it from
harsh weather.


The Smooth Alder, also known as Alnus serrulata, is a deciduous tree native to North America. It is commonly found in wetland areas, such as swamps, marshes, and along stream banks.

The Smooth Alder is known for its smooth, grayish bark and its ability to tolerate wet soil conditions. It has dark green, oval-shaped leaves with serrated edges, which turn yellow in the fall before dropping off. The tree produces small, cone-like fruits that contain seeds.

The Smooth Alder is often used in landscaping projects for erosion control, stream bank stabilization, and as a wildlife habitat. It provides food and shelter for various bird species and other wildlife.




Eastern N. America, GA Native


10 - 20’ 


8’ - 15’



USDA Hardiness Zone: 

4 - 9


Full SunPart Sun

Bloom Color: 

Yellow (male), Red (female)

Season of Interest: 


MAINTENANCE NEEDS: Low maintenance.  Canker can be severe, and powdery mildew and leaf curl may appear.  Watch for aphids, leaf miners, lace bugs, and flea beetles.  Chlorosis  will appear in high pH soils.

LANDSCAPE USES: Specimen planting or Grove, Wetlands and ponds Woo dland GardenNaturalized AreasNative Garden, and Shade Tree.

COMPANION PLANTS:  River Birch, Swamp Chest Oak, Southern Lady Fern

IMAGES:  Aroche Alnus serrulata arboretum Breuil 2 CC BY-SA 3.0, (2) Photo by  sonnia hill Alnus serrulata, (3) photo by Fyn Kynd Smooth Alder - Alnus serrulata

*As plants have ranges in appearance they may not appear as the images shown.

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