When you think about planting trees, shrubs, and perennials, spring may be the first season that comes to mind. But autumn can be an excellent time to add new plants to your landscape. As temperatures cool, the conditions underground can still be favorable for root development. At the same time, cooler air and seasonal rainfall can reduce some of the stress that newly planted plants experience. Whether you’re adding a new tree, refreshing your garden beds, or planting perennials for next year’s color, here are some of the reasons fall planting can give your landscape a head start.
1. Fall Encourages Root Development
One of the biggest advantages of fall planting is the opportunity for plants to establish their roots before the demands of summer return.
Even when the air becomes noticeably cooler, soil temperatures can remain relatively warm. This creates a useful window for root growth while above-ground growth begins to slow. Illinois Extension notes that roots can continue developing in fall and, when soil conditions are favorable, may continue growing until the ground freezes.
This means a plant installed in autumn can spend the cooler months becoming established rather than trying to put on lots of new top growth.
By spring, that established root system can help the plant get off to a strong start before the heat and dryness of summer arrive.
2. Cooler Weather Can Mean Less Transplant Stress
Moving a plant from a container or nursery setting into your landscape naturally causes some degree of transplant stress. Fall weather can make that transition easier.
Cooler temperatures mean plants generally lose less water through their leaves than they would during hot summer conditions. Shorter days and lower temperatures reduce the demand for water, while seasonal rainfall can help maintain soil moisture.
For deciduous trees and shrubs, the transition into winter dormancy also gives the plant a period of rest after its roots have had time to begin establishing.
The result is a planting window where plants can focus more of their energy underground before spring growth begins.
3. Less Watering and Easier Planting Conditions
Fall weather can make landscape projects more manageable for homeowners, too.
Autumn often brings cooler temperatures and more consistent rainfall, which can reduce the amount of supplemental watering newly planted trees and shrubs need. However, newly planted plants should still be monitored and watered when the soil becomes dry, particularly later in the season.
Fall soil can also be easier to work with than hard, dry summer soil. When moisture levels are appropriate, digging and preparing planting areas can be more comfortable and efficient.
Just remember: good fall planting still includes proper watering and planting practices. Fall doesn’t mean you can completely put the hose away.
4. Less Competition From Weeds
Another benefit of planting later in the year is that many warm-season weeds are slowing down.
As temperatures drop, annual weeds begin completing their growing cycles, reducing some of the competition for water, nutrients, sunlight, and space.
Illinois Extension also notes that fall-planted perennials can have improved suppression of warm-season weeds as they establish their root systems.
Starting with a clean, well-prepared planting bed gives your new plants a better environment in which to establish.
5. A Head Start on Spring Growth and Blooms
One of the most rewarding benefits of fall planting is what happens when spring arrives.
Perennials planted early enough in the fall have time to establish roots before winter. With that foundation already in place, they can begin spring growth without having to spend as much time getting established after a spring planting.
Illinois Extension reports that fall-established perennials can have improved root structure, vigor, and earlier or more abundant flowering.
In other words, the work you put into your landscape in the fall can pay off when everything starts waking up in spring.
Timing Matters
Although fall can be an excellent planting season, timing is important.
You want to give plants enough time to establish before the ground freezes. Planting too late in the season can reduce the amount of root development possible before winter. Illinois Extension recommends giving fall plantings adequate time to establish and emphasizes watering and proper mulching as part of fall aftercare.
The ideal timing can also vary depending on your location, plant type, and weather conditions.
Don’t Forget Fall Planting Care
Planting is only the beginning. To give your new trees, shrubs, and perennials the best chance of success:
- Choose plants that are suited to your site.
- Plant at the correct depth.
- Water thoroughly after planting.
- Continue monitoring soil moisture during dry periods.
- Apply mulch appropriately to help moderate soil temperatures and conserve moisture.
- Give plants enough time to establish before consistently freezing conditions arrive.
For trees and shrubs, Illinois Extension recommends a planting hole that is wider than the root ball rather than excessively deep, with the root flare positioned at the soil surface.
Plant Now, Enjoy Later
Fall isn’t just the season for pumpkins, colorful leaves, and cooler evenings. It’s also a valuable planting window for creating a healthier landscape. By giving trees, shrubs, and perennials time to establish their roots before the heat of next summer, you can set your landscape up for strong growth in the seasons ahead.
Ready to add something new to your landscape? Fall is a great time to start planning. Visit Kiefer Landscaping to explore your options and find the right plants for your space.
