Garden Near Maple Roots: What Grows and How to Plant
A garden near maple roots needs planning. NC State Extension says red maple makes a dense mat of surface roots that outcompete other plants in its shade. It describes Norway maple as having a dense canopy and shallow roots that make it hard to grow anything under the drip line. Silver maple roots are shallow too.
The short answer
Expect competition for water and light. UC Master Gardeners say tree roots take water and nutrients, so beds under trees need extra water and fertilizer. Grow leafy greens that handle three to four hours of sun. Place containers where sun reaches, or set beds outside the drip line.
Why is it hard to garden near maples?
Roots and shade. NC State Extension says red maple forms a dense mat of surface roots and that herbaceous plants are hard to grow in it. Norway maple has shallow roots and a dense canopy. Silver maple has shallow roots that can disturb driveways and sidewalks. More on growing near trees is in growing cannabis near trees.
How do you plant around maple roots?
UC Master Gardeners say gardens under trees run short of water and fertility. The tree cover also cuts rainfall reaching the soil, so plan to add water and fertilizer. They suggest clocking the hours of sun through the day and seasons. Growing vertically or hanging containers high can catch more light. Light patterns are covered in garden microclimates for cannabis. Layout ideas are in planning an outdoor cannabis garden layout.
| Crop type | Sun needed | Examples |
|---|---|---|
| Fruit crops | Six or more hours, ideally 8 to 10 | Tomatoes, peppers, squash |
| Root and flower crops | About four hours | Radishes, beets, carrots, broccoli |
| Leafy crops | About three hours | Lettuce, spinach, kale, chard |
Sources: UC Master Gardeners of Placer County, NC State Extension.
Which plants handle maple shade and roots?
UC Master Gardeners say leafy crops such as lettuce, arugula, spinach, kale, chard and mustard greens can grow with as little as three hours of sun. With about four hours, try radishes, beets, carrots, broccoli and cauliflower. They note that lettuce and spinach grow longer before bolting in some shade. Mulch tips are in mulch for cannabis.
How to: step by step
- Note which maple you have.
- Clock the hours of sun through the day.
- Choose leafy greens for low light.
- Add water and fertilizer more often.
- Use containers where sun reaches.
- Grow vertically to catch more light.
Troubleshooting
Beds dry out fast: tree roots take the water. Water more often.
Thin, weak growth: low light. Switch to leafy greens.
Nothing grows under a Norway maple: move the bed past the drip line.
Kind Seed Co shares these garden notes for growers of all kinds.
Sources
- Acer saccharinum (silver maple), NC State Extension Gardener Plant Toolbox
- Acer rubrum (red maple), NC State Extension Gardener Plant Toolbox
- Acer platanoides (Norway maple), NC State Extension Gardener Plant Toolbox
- Growing vegetables in less than 6 hours of sun, UC Master Gardeners of Placer County
FAQ
Which maples have the shallowest roots?
NC State Extension describes shallow roots on silver, red and Norway maple. Red maple forms a dense mat of surface roots.
Do containers work under maples?
Yes. UC Master Gardeners suggest hanging containers from a high post or growing vertically to catch more sun.
Do gardens under trees need more water?
UC Master Gardeners say tree roots take water and nutrients and the canopy cuts the rain that reaches the soil, so extra water and fertilizer help.
Which vegetables grow with three hours of sun?
UC Master Gardeners list lettuce, endive, cress, arugula, spinach, kale, chard and mustard greens.
Can tomatoes grow under a maple?
UC Master Gardeners say fruit crops like tomatoes need the most sun, ideally 8 to 10 hours. They call it unwise to try with under six hours.
