How to Grow a Maple Tree

When to Plant Maples

Shade trees like maples are either purchased bare root or in containers. Bare root trees should be planted as soon as possible after receiving them and do best when planted while the tree is still dormant in spring. 

Containerized maples may be planted at any time throughout the spring and summer. While spring planting is better, it’s okay to plant that late-season bargain maple in midsummer. It’ll just need more attention to watering. 

Where to Plant Maples

As a group, maples prefer rich, loamy soil and moderate moisture. They will tolerate drier conditions and stony sites but will grow slower. 

Select a site with:

• Partial shade to full sun. However, afternoon shade is helpful in hotter climates. An area that receives dappled sun all day is a good choice.
   
• Adequate drainage. Maples like moist sites but won’t do well in areas with frequent standing water. 
   
• Slightly acidic soil. Maples are not picky about pH, although slightly acidic conditions are better.

For wetter sites, choose silver or red maple. Sites resembling wooded uplands (typical yards with adequate drainage) will be fine for hard or soft maple species.

Most maples have shallow root systems and are heavy feeders, meaning that grass may grow poorly due to the combination of shade and competition for water and nutrients. Some maples, like silver maple, have a reputation as sidewalk heavers. 

While an excellent and extremely fast-growing shade tree, silver maples frequently shed branches in storms. Avoid planting them near driveways or your swimming pool.

How to Plant a Maple Tree

Planting maples the same way you’d plant other nursery stock.  

1. Remove all sod from the spot.
    
2. Dig a hole the same depth as the root ball and at least twice as wide. The hole should resemble a shallow bowl, not a tuna fish can. Keep the excavated soil handy.
    
3. Loosen the soil around the edges and bottom of the hole. Hard compacted soil will make it difficult for new roots to penetrate (or water to drain).
    
4. Remove the maple tree from its container and prune any circling or girdling roots. Rootbound plants benefit from scoring the root ball to stimulate new growth outwardly.
    
5. Test fit the maple in the hole. Check for depth and ensure no roots are bent over or circling the hole. Enlarge the hole if necessary.
    
6. Backfill the hole with the native soil you removed, keeping the tree vertical while filling. Stop when the hole is about halfway refilled and tamp the soil firmly around the roots to remove air pockets, then give it a good drink of water. Continue filling the soil around the roots and firming it with your hands.
    
7. Mulch around the tree, about 3-4 inches thick. Spread the mulch evenly in a circle extending 2 feet from the trunk. Don’t let the mulch touch the tree–keep a finger width or two of space. The final mulch job should look like a saucer, not a pyramid.