Environmental Initiatives

Fall Is for Tree Planting: Four Steps for Success

Tree Planting 

As summer ends and fall begins, gardening minds often turn to winding down for the season. However, fall is the perfect time to plant new trees. The cooler autumn air helps young trees ease into the earth and prepare for winter hibernation without the stress of intense summer heat.  

If you are adding a new tree to your landscape this season, follow these four essential steps to ensure its long-term success. 

1. Digging the Hole 

When digging a hole for a new tree, make it double the width of the root ball. While a tree needs to grow above ground, it must first establish itself below ground. A wider hole loosens the surrounding dirt, making it easier to add nutrients and high-quality soil so the roots can spread freely.  

2. Preparing and Planting the Tree 

Before placing your tree in the ground, inspect the roots. Sometimes, roots take the shape of the tight plastic container they grew in. Carefully tap and loosen the root ball to detangle them, which helps them hold the earth better once planted.  

Watch out for root girdling, a dangerous condition where roots wrap tightly around and choke the tree’s trunk. If your new tree shows signs of root girdling, gently ease and straighten the roots out, or prune them before planting.  

3. Filling the Hole and Mulching 

Fill the hole using a balanced mixture of compost and native soil. Incorporating native soil ensures the tree adapts smoothly to the existing earth in your yard, while compost delivers vital nutrients. Once the hole is filled, apply a thick top layer of mulch, at least 3”. Mulch is crucial for retaining soil moisture and insulating the roots from extreme temperatures. Make sure not to pile the mulch on the truck. Keep the trunk free from mulch. 

4. Supporting the Tree 

The final step is staking the tree to secure it in an upright position. Staking supports the tree while its roots establish themselves in the soil, protecting the heavy canopy from strong winds and accidental damage. Keep in mind that staking is only a temporary fix. To prevent the tree from becoming dependent on artificial support, remove the stakes after one full growing season (no more than one year). 

All plants need water. Newly planted trees as well. Make sure to water the tree every day after planting for at least 2 weeks. The amount of water required will depend on the soil conditions, and the tree itself. Make sure the planted area is not too wet so that the tree suffocates.  

Happy Planting.  

For more information about Environmental Initiatives and Turtle Team Six, visit the Environmental Initiatives webpage.

People work together to mulch and support a newly planted tree during an Earth Day 2026 activity in Round Rock.
Community members help care for a newly planted tree during an Earth Day 2026 activity in Round Rock.
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