I planted like, 300 flower bulbs late this past fall and wanted to mulch them because everyone says you’re supposed to. Problem is, those little $5 bags of mulch don’t go very far, and I didn’t want to spend $600 on some shredded wood. By my calculations, I needed at least 3 cubic yards. I called my local garden center about getting bulk mulch, and they said the cheap un-dyed kind was $40/half cubic yard, and $40 x 6 = $240, plus tax, plus truck rental or delivery costs…YIKES!
Do You Really Need to Mulch Everything?
Short answer: yes! Lots of plants will do fine without mulch, of course…but mulch is awesome and will save you money on water. Here are some reasons why you should use it:
-
No matter how ugly your mulch is, it will always look better than dirt.
(Unless, maybe, it’s bright red and made out of rubber — that stuff is pretty bad!)
-
You can walk in it without getting your shoes muddy.
This is super nice when you have to walk through your beds to turn on the hose or put up Christmas lights.
-
It protects your plants from harsh temperatures.
This means you are more likely to get away with growing plants that might be borderline not-hardy-enough for your zone. I’ve been harvesting kale and rosemary all winter in Zone 6.
-
It keeps moisture from evaporating as quickly.
You won’t have to water your plants as often, which can save you a ton of money during hot, dry summers.
-
As it decomposes, it enriches the soil.
Organic material provides important nutrients to your plants, improves soil structure, and holds a lot of moisture that can be easily absorbed by roots.
-
It prevents weed seeds from getting enough light to sprout.
Who wants to spend all their garden time pulling weeds? Not me!
You should mulch anywhere you want to experience these benefits — flower beds, bushes, fruit trees, vegetable gardens…I also used it as a border around my house and to make a path around the side of my house.
How Much Do You Need?
Too much mulch can make the soil waterlogged and encourage harmful diseases in plants, but a layer of mulch that’s too thin won’t be effective in preventing weeds.
For most types of planting beds, the recommended mulch depth is about 3 inches. If your mulch is very fine, you may only need 1-2 inches. For coarser shreds, 3 – 4 inches is probably better since the larger chunks let more air and light through.
Mulch Calculator
Choosing the Best Type of Mulch
In my opinion, mulch is meant to enrich your soil, keep your plants from freezing to death in the winter, and hold in moisture. If it’s not ugly, that’s a nice bonus — but you really shouldn’t choose your mulch just based on looks. I much prefer the appearance of natural-looking gardens that are so densely planted that you don’t even see the mulch, anyway. You want the focal point of your gardens to be the plants, not the mulch!
Some mulch is made out of rubber or rocks — these kinds obviously do nothing to enrich the soil. The most commonly-used type is made out of wood chips that have been dyed with “natural” pigment — it usually comes in black, brown, or red. This mulch frequently comes from construction and demolition debris that often contains chromated copper arsenate (CCA)-treated wood. The chromium, copper, and arsenic present in this wood may cause environmental problems, and it really goes against the idea of using mulch to improve soil quality.
A nice dark brown or black-dyed mulch may look nicer for a year or so, but as soon as the dye fades, it will start looking pretty terrible — at which point, you can buy some overpriced spray-on dye that will fade even quicker. Also, the dye can get on your wet shoes, and you may track it all over your driveway and sidewalks — gross!
The undyed, natural mulch has no bad chemicals in the wood and is generally a lot cheaper. When it is freshly shredded, it may be a pretty nasty-looking yellow color if the wood is still fresh, but within a month or so, it will fade to a much-less-obnoxious grey-ish brown.
It generally comes in different shred sizes like fine, medium, and large. The finer the shred, the quicker it will enrich your soil. The larger the shred, the longer it will take before it completely decomposes and you have to buy new mulch. I think a mix of shred sizes is best if you have bad soil that you’d like to improve ASAP, but you also don’t want to buy new mulch more often than absolutely necessary.
Pine straw makes great mulch for acid-loving plants, and cedar bark nuggets are also super nice but can be really expensive.
Where to Get Cheap Mulch
I had read online that sometimes tree trimming companies will give you free mulch. I signed up on a couple of websites that were supposed to connect you to landscaping companies that have mulch to give away, but I waited a couple months and nothing ever came of that. I also called 10 or 15 local tree trimming companies, and none of them wanted to give me free mulch. My parents got some free mulch from the trees they had removed on their property, but they are on the other side of the country, so that didn’t do me any good.
It seemed like the bigger tree companies sold mulch to local landscape suppliers and firewood to those places that sell firewood for $5 a bundle. They also sold apple wood chips for smoking meat and stuff — there was nothing they were “just trying to get rid of” for free. From these bigger companies, the cheapest mulch I found was $26/cubic yard — which I thought was totally reasonable and wayyy better than $80/cubic yard. I would still need to find a truck to rent though, and Home Depot trucks are $20/hr, and I would need it for 2 hours…which would bring my total up to $118 for 3 cubic yards.
That would have been just fine, but there was a smaller company who offered to bring me 8-10 cubic yards for $120, delivered. I wasn’t completely sure what I would ever do with 8-10 cubic yards of mulch, but I figured too much was better than too little, so I decided to go that route, especially since it wouldn’t require me to worry about taking off work during 9-5 hours and renting a truck!
I had to wait about a week until they had their next tree removal scheduled that would be relatively “clean” (preferably no pine needles and minimal leaves, etc.), and then they just came and dumped a huge pile of mulch in the back of my driveway at the end of the day.


Since most natural undyed mulch seems to come from tree trimming companies, I would definitely recommend cutting out the garden center middle man if you have a large area to mulch and are looking to save some money. Tree trimming companies and landfills are a great place to start your search.
How to Apply Your Mulch
I experimented with a few different techniques, but the most efficient method I found was to shovel the mulch from the pile into a wheelbarrow, dump the whole wheelbarrow load into the bed, and then spread it around with a metal rake.
It is best to leave a thinner layer of mulch immediately surrounding the plants and spread it thicker around the in-between areas. Avoid letting the mulch actually touch the trunks or stems of the plants.