Most homeowners who want a landscape project make the same mistake first: they start with the plants they want. Or worse, they start with the plants they saw at the nursery this weekend.
The good ones start earlier. They start by learning to read the site.
Reading a site means understanding what your yard is actually doing before you try to change it. It’s what a landscape designer does in the first ninety minutes of a site visit, and it’s the difference between a design that lives for twenty years and one that struggles for two.
Here’s how to do it yourself, whether you’re planning a project on your own or getting ready for a conversation with a designer.
Watch the water
Water is the most important thing on your site. It tells you where plants will thrive, where they’ll drown, and where the design has to work harder.
Walk your property after a hard rain. Not the next day. During the rain if you can, or right after it stops. Where does water pool? Where does it run? Where does it disappear into the ground quickly, and where does it sit for an hour or more?
That map of where water goes tells you almost everything about what to plant where. Wet spots need plants that tolerate wet feet, like Joe Pye weed, cardinal flower, itea, or sweetbay magnolia. Dry spots at the top of a slope need drought-tolerant natives that won’t stress in August, like butterfly weed, little bluestem, or purple coneflower.
If you skip this step and just plant what looks pretty, half of what you buy is going to be in the wrong place.
Watch the sun
Sun exposure changes throughout the day and throughout the year. A spot that gets six hours of summer sun might get one hour of winter sun once the canopy leafs in and the angle shifts.
The simple version: track what’s in full sun (six-plus hours), partial sun (three to six hours), and shade (less than three hours) in one representative spot in each area of your yard. Do it in June or July, when the trees are fully leafed out and the sun is highest.
Then remember that fall and winter are different. Deciduous trees drop leaves. The sun angle changes. What was deep shade in July might be partial sun in January.
For plant selection, summer conditions matter most, because that’s when most plants are working hardest.
Watch the soil
Chattanooga soil is mostly heavy clay, but it isn’t uniform. Some spots have more topsoil than others. Some have gravel just below the surface. Some drain well because they’re on a slope and water sheets off. Others hold water because they’re at the bottom of a slope where everything collects.
The cheap way to check: dig a hole eighteen inches deep, fill it with water, wait for it to drain, then fill it again and time how long the second fill takes to disappear. Under six hours is well-drained. Six to twenty-four is normal for clay. Over twenty-four is a drainage problem you have to design around.
Do this in two or three spots on your property, because the answer can vary within twenty feet.
Watch the microclimates
A single Chattanooga property can have five different microclimates. A south-facing brick wall creates a hot dry pocket that behaves like Tennessee zone 8. A shady north side under a downspout behaves like zone 6. The middle of an open lawn is baseline zone 7.
Where these microclimates are matters more than what your official USDA zone says. A plant rated for zone 7 might struggle in the hot pocket next to your driveway but thrive against the cool north wall.
Notice where the sun hits hard, where cold air pools in winter, where wind hits hardest, and where things stay unusually cool or warm. Those observations tell you which plants belong in each spot.
Walk the neighbors
Look at what’s growing well in similar conditions within a mile of your house. Not from a plant catalog. From a walk down your own street.
If your neighbor’s oakleaf hydrangeas look great, and their site is similar to yours, oakleaf hydrangea will probably work for you too. If nobody in your area has healthy Japanese maples, that’s a signal too.
This is the fastest, most reliable local research you can do. And it’s free.
Then, and only then, pick plants
Once you know where water goes, where sun hits, what your soil does, and what your microclimates are doing, the plant list writes itself. Or your designer’s plant list makes sense to you, because you can see why each plant went where it did.
Plants are the last decision in a landscape design, not the first.
Ready to talk through what your site is telling you? Schedule a design consultation here.
Written by the team at Monolith Landscape Design, Chattanooga TN. Residential landscape design, design-build, planting, hardscape, and irrigation across Chattanooga, Signal Mountain, Lookout Mountain, Hixson, Ooltewah, East Brainerd, Red Bank, and East Ridge.