How far do mountain ash roots spread?
Christopher Pierce
Published Jun 03, 2026
How far do mountain ash roots spread?
Table below shows the Minimum Distance from property and Maximum root spread recorded
| Apple | Malus | Max – 10.0 metres |
| Pair | Pyrus | Max – 10.0 metres |
| Cherry, Plum and Peach | Prunus | Max – 11.0 metres |
| Hawthorn | Crataegus | Max – 11.5 metres |
| Rowan & Mountain Ash | Sorbus | Max – 11.0 metres |
How do you know if tree roots are damaging Foundation?
Look for the following signs if you suspect your trees have disrupted your driveway or sidewalk:
- Cracks running across the concrete.
- Roots (or bumps of earth) leading to those cracks.
- Buckling in the concrete’s surface-the slabs won’t sit flush with each other anymore.
Do ash trees have surface roots?
Ash trees are not known for their surface roots like, let’s say, mulberry is. Larger plants like your ash trees, as they grow in the landscape, require water in much larger amounts than shrubs which do not grow as tall.
How far from a house should an ash tree be?
| Species | Normal Mature Height (M) | Safe Distance (M) |
|---|---|---|
| Ash | 23 | 21 |
| Beech | 20 | 15 |
| Birch | 14 | 10 |
| Cypress | 25 | 20 |
Is it OK to plant a lilac tree near a foundation?
Root System on Lilac. Lilac roots aren’t considered invasive and as long as you leave enough space between the tree, or shrub, and the structure, there is little risk from planting lilacs near foundations.
What’s the name of the lilac tree that is dying?
Syringa vulgaris, the common lilac, is reportedly the most affected species. S. reticulata the tree lilac, is also susceptible. Whether specific cultivars are affected more than others is unknown mainly because most people don’t know the cultivar. Affected plants are reportedly mature and have “never been a problem” before this year.
Are there trees that are bad for your foundation?
Trees can even increase property values by 15 to 20 percent. However, certain fast-growing tree species with shallow root systems can invade foundations, causing cracking, settling and other costly problems. Prevent damage by planting slow-growing trees, keeping the soil near your foundation dry…
How are the roots of an invasive tree harmful?
The roots spread at least as far as the most distant tips of the branches, and invasive tree roots often spread much farther. Invasive tree roots can be very destructive. Let’s learn more about common trees that have invasive root systems and planting precautions for invasive trees.
