Tree roots are mostly hidden, but knowing their location is crucial for landscaping, construction, or tree care.
Most roots grow in the top 12–18 inches of soil and spread horizontally, often 2–3 times wider than the tree’s canopy. So, the root system usually extends well beyond the drip line. Look for surface clues like exposed roots, cracked pavement, lifted soil, or bare patches in your lawn—these may suggest root presence underneath. A soil probe or long screwdriver can help detect roots.
Push it into the ground around the tree; if you hit resistance, you may have found a root. Try this at various distances to estimate the spread. Digging small test holes (carefully) is another DIY method. Stop if you hit a root to avoid causing damage. This works well if you’re preparing to plant or install posts. For more accuracy, hire a professional. Arborists can use air excavation or ground-penetrating radar to map roots without disturbing the soil—ideal for major projects or diagnosing tree health issues. Understanding your tree’s root layout helps prevent accidental damage, promotes healthy growth, and ensures safety. Always work around roots gently and avoid compacting or cutting them. Call us now if you would like to remove a tree that may be encumbering your yard!