Tag: how to mulch

  • Spread Less Mulch For a More Healthy Landscape

    Spread Less Mulch For a More Healthy Landscape

    This spring I visited a home that had recently been mulched and was shocked at how deep the mulch was and how little preparation went into the job.

    Weeds that had been covered in mulch poked through and the mulch was easily four to five inches deep.

    Weeds Growing Through Mulch

    I recommend carrying a soil knife and removing perennial weeds, such as Dandelion, down to the root before mulching.

    This garden should not have been mulched; the time and expense should have gone into weeding.

    More Weeds Growing Through Mulch

    Deep mulch leads to unhealthy plants and looks unnatural. On some jobs, I have to remove deep, old mulch before applying new.

    Once a garden is established an inch of mulch is all you need.

    Benefits of light mulching include:

    • Mulch won’t require yearly turning.
    • Oxygen can easily enter the soil.
    • Mulched over tree bark won’t become an entry point for insects, disease, and rodents.
    • Water easily filters through.
    • Less mulch looks more natural, like a coating of leaves on the forest floor.
    • Plant roots grow into the soil instead of growing into mulch that quickly dries.

    Whether you’re a contractor or a homeowner try not applying mulch one year and see the difference it makes. Your plants will be healthier with significantly less work and expense.

    Below is a landscape I mulched this spring by applying just enough mulch to do the job. No more. No less.

    Light Coating of Mulch

    Spread less mulch for a more healthy landscape and sometimes you don’t need to add any mulch at all.

  • How to Mulch a Tree Incorrectly

    How to Mulch a Tree Incorrectly

    Every spring I cringe when I see freshly mulched landscapes.  The more is better principle gets beaten silly and mulch spread with reckless abandon.

    This isn’t the first time I’ve discussed how to mulch and it won’t be the last.  How to mulch correctly is a topic worth repeating.

    Volcano mulching is when a mound of mulch is spread around the base of a tree (See photo top of page).  The cone grows yearly with each new layer.  The sooner we can stop volcano mulching the better.

    Below a tree thrives in the forest with no volcano mulching ‘help’ from man.  There’s moss growing at the base of the tree because leaves only begin to cover the ground six inches away.Oak Tree In Forest Mulched by Mother Nature

    Mimic how mother nature mulches.  She doesn’t dump piles of leaves against the base of trees.  She spreads a light coating of leaves over the entire forest.

    Why is this so hard to understand?

    The illustration below shows how to mulch a tree incorrectly by volcano mulching.  Mulch spread against the bark creates a moist place that encourages rot.  Further, tree roots grow into the mulch making them drought prone.  Finally, the mulch is so deep rain runs off and doesn’t reach the roots.

    How to Mulch Incorrectly Around Trees

    The illustration below shows how to mulch a tree correctly by spreading 2-3 inches or less of mulch 6-12 inches from the trunk of the tree.  Mulch doesn’t touch the trunk.

    How to Mulch Around Trees Correctly
    If a tree has over 3 inches of mulch carefully remove it without injuring the bark or roots of the tree.

    How to Mulch a Tree Correctly Samples

    Below a tree I mulched last year has some dirt and moss around the base of the tree.  It would be a shame to slowly kill this beautiful tree by over-mulching.

    Tree Mulched Correctly

    Another tree mulched the right way.  You can see dirt at the base of the tree and that’s good.  A few weeds may grow but it’s worth the effort.

    Tree Mulched Correctly

    How to Mulch a Tree Incorrectly Samples

    I often see trees so over mulched you could mulch several more trees with the excess.  I’m not kidding!

    More volcano mulching.  It doesn’t look natural and it’s no good for the tree.  The madness has to stop!How to Mulch Trees Incorrectly Sample 3

    Same look, different parking lot.

    How to Mulch Trees Incorrectly Sample 4

    A beautiful oak tree sentenced to a slow and painful death.

    How to Mulch Trees Incorrectly Sample 3

    Why would someone do this?  I can’t make this stuff up.

    How to Mulch Trees Incorrectly Sample 5

    Please help stop the volcano mulching madness.

  • How NOT to Mulch a Tree

    How NOT to Mulch a Tree

    I drive through neighborhoods daily and see trees mulched improperly.  People want to do the best for their trees and apply the “More is better” principal with disastrous results.

    Trees that have been over mulched dry out quicker in hot summer months and are prone to disease and attacks by rodents.  Mulching a tree like a volcano also doesn’t look natural.

    If your trees have mulch that looks like a volcano the best thing you can do is remove the excess.  There should only be 2-3″ of mulch around a tree with a minimum of 6″ of space between the mulch and the trunk of the tree.

    Be gentle when removing mulch.  You don’t want to damage the tree with your shovel.  Use your hands to remove mulch near the trunk and large roots.  Cleanly cut roots with sharp pruning shears to help them heal more quickly.

  • The Three Musts of Mulching

    The Three Musts of Mulching

    Three important tips on how to mulch your landscape.

    1. Never apply mulch deeper than 3 inches.  If the mulch in your landscape is over three inches you must remove some.  Mulch over three inches prevents air, water and nutrients from reaching your trees and shrubs.
    2. Never touch mulch to the base of trees and shrubs.  Leave a gap from six inches to a foot around trees and shrubs.  If mulch is in contact with the bark of trees and shrubs it keeps it moist and encourages insects and disease.
    3. Before re-applying mulch turn your existing mulch.  Over time mulch can become compacted and matted down.  By cultivating your mulch you loosen it up so air and nutrients can make it through.  My favorite tool to cultivate mulch is the Garden Weasel.

    Please remember the these tips when planning how to mulch your landscape.

    By John Holden