Magnolias are long-lived flowering shrubs that can become the crown jewel of any landscape. However, getting them to thrive takes a little bit of know-how. To ensure your magnolia stays healthy and grows strong for years to come, there are a few specific quirks you’ll want to keep in mind.
Magnolias are Shallow Rooters
If you want that young sapling to eventually turn into a magnificent, towering tree, keeping it hydrated is key. Unlike some trees that send roots deep into the earth, magnolias have a shallow root system. This means they feel the effects of a dry spell much faster than their neighbors. The most important part of magnolia care is consistent watering. Don’t forget about them in the winter, either—if it’s a dry, frost-free period, your tree might still need a drink. Pro tip: A nice layer of bark mulch around the base works wonders for locking in that much-needed moisture.
Enriching the Soil
The soil you choose for your magnolia should be naturally rich in nutrients. If you start with good dirt, you usually won’t need to worry about heavy fertilizing. That said, I’ve found that magnolias really appreciate a little spring “pick-me-up.” Try gently loosening the soil around the plant with a rake and mixing in some peat and humus. Just a heads-up: since those roots are so close to the surface, be extra careful not to dig too deep or you might nick them!
Skip the Regular Pruning
Here’s some good news for low-maintenance gardeners: magnolias are slow growers and generally don’t need pruning. In fact, hacking away at them during the growing season can actually do more harm than good. They tend to “bleed” a lot of sap from fresh cuts, which weakens the tree and can lead to fewer blooms next year. When the flowers fade, it’s best to just let them fall off naturally or gently pluck them by hand.
Winter Protection for Young Trees
Once a magnolia has matured into a sturdy tree, it’s usually tough enough to handle even the harshest frosts. However, the youngsters need a little extra TLC. Before the first freeze hits, mound some extra soil around the base of the trunk. For added insurance, you can wrap the trunk in garden fleece to keep it cozy until spring.
To keep your magnolia happy, just remember these three essentials:
- Keep the soil moist (even during dry winters!)
- Refresh the soil with peat and humus every spring.
- Put the shears away—no regular pruning required!
