Return to the Trees Forum | Post a Follow-Up

Should I fertilize my magnolia trees?

Posted by misskitty100 8 WA (My Page) on
Fri, Jun 26, 09 at 9:44

I have 2 magnolia trees that I planted last year. One is doing great and one is struggling. The struggling one had lots of brown leaves that have fallen off but at the same time lots of new leaves are coming on too.

Should I fertilize these trees and if so, what should I use?

Follow-Up Postings:

RE: Should I fertilize my magnolia trees?

Should I fertilize these trees


Never fert stressed trees. And the thriving one doesn't need it either.


RE: Should I fertilize my magnolia trees?

  • Posted by brandon7 6b (like 7b now) TN (My Page) on
    Fri, Jun 26, 09 at 10:54

What makes you think the one with lots of new leaves is struggling?

Are your trees properly mulched? If not, the best thing you could ever do for your magnolias is to property mulch them as far out as you can justify. If you are not certain of proper mulching techniques, please ask for more info!

RE: Should I fertilize my magnolia trees?


Yes, please tell me about mulching.


P.S. I think the one is struggling because the other one has beautiful, glossy green leaves as opposed to brown leaves that are falling off.

RE: Should I fertilize my magnolia trees?

  • Posted by bboy z8 WA USA (My Page) on
    Fri, Jun 26, 09 at 12:37

Probably evergreen magnolia which very often looks badly starved on local soils. Go to an independent garden center and ask for a suitable product.

Mulch all plantings except warm season vegetable crops. Use a entirely or partly more coarse mulch, like wood chips. Keep it away from stems.

I love cedar play chips originating at mills. Perfect!

Bark mulch can be contaminated with salt or weed seeds
Bark naturally contains waxes that prevent absorption and release of water in landscapes
Sawdust is too fine a material to use as a landscape mulch and will prevent water and gas movement as
it compacts
Softwood bark mulches are often not "gardener friendly" due to the presence of tiny, sharp fibers
Arborist wood chips can be finely chipped if this is more aesthetically desirable

Here is a link that might be useful: The Myth of Pretty Mulch

RE: Should I fertilize my magnolia trees?

  • Posted by brandon7 6b (like 7b now) TN (My Page) on
    Fri, Jun 26, 09 at 13:45

I copied most of the following info off of my website, linked below. If it doesn't answer all of your questions, please let me know. I'm still trying to be sure I have all the bases covered.

Use an organic mulch like shredded hardwood, pine park, pine needles, etc. The mulch should be added at least as far out as the diameter of the planting hole. Wider mulched areas are beneficial. A tree's root system typically extends out two to three times as far as it's canopy. Proper mulch depth will vary with mulch type, but, if using pine bark or shredded wood mulch, 2" to 4" is generally sufficient. Mulching too deep can create surface drainage problems and deprive roots of oxygen. Remember to mulch wide, not deep. The area immediately adjacent to the trunk of the tree or shrub should be unmulched. Leave a couple of inches adjacent to the trunk bare to avoid fungal, disease, and pest problems. Excess moisture held against the bark on the lower portion of the trunk can encourage rot. Mulch placed against the bark can harbor disease and provide cover for gnawing rodents. In no case should "mulch volcanoes" be built around the trunk. Some gardeners make use of six to eight layers of newspaper or even cardboard under their mulch to reduce initial weed growth up through the mulch. Plastic, landscape fabric, and woven weed barriers should be avoided! These only cause major problems later on as seeds grow roots down though these materials and anchor themselves into the barriers. Removal can be problematic.

Here is a link that might be useful: Planting a Tree or Shrub

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Trees Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here