If mulch is applied to wet soils, or applied too deeply over poorly drained soil the moisture is sealed in. At a time when plants are trying to break dormancy, by maintaing wet soil longer into spring, mulch quickly becomes a detriment to plant health.
Organic mulches are better at absorbing water. Common organic mulches include grass clippings, greenwaste, leaves, straw, hay, bark, and wood. Organic mulch can act as a giant sponge by absorbing and holding excess water, then slowly releasing water into the soil or air.
Adding mulch on top of the soil is beneficial because it is a source of nutrients. It also helps with maintenance; you will have fewer reasons to water your plants because it encourages moisture retention. It also ensures an adequate and steady supply of the required nutrients.
You should spread your mulch to be two to four inches thick. If your mulch is too thin, then weeds can push through. If your mulch is too thick, it prevents water from reaching the soil. Water after mulching — This is an optional step, but a final watering can help settle the mulch into place.
Normally, mid- to late spring is the best time to put down mulch. Seedlings can work their way through a thin layer of mulch, but too deep a layer could be impenetrable. Let your plants get off to a good start first. You can always add more mulch after the plants are established.
About 3 inches of mulch is recommended for beds, and Becker recommends mulching twice a year. Mulching with the right amount each time will help fend off weeds and conserve moisture, which will reduce your need to irrigate. One exception is if you use pea gravel mulch or inorganic mulch.
It is important to feed your rose before mulching. Watch our video on how to feed your roses for top tips on how to successfully maintain their needs.
HOW LONG WILL MULCH LAST? Mulches vary in lifespan from approximately 12 months in the case of leaf mulch, to approximately 3 years in the case of woodchip.
WATERING WITH MULCH
Now that you have planted and prepared your garden and added the necessary layer of mulch, watering should be very easy. At the beginning of the season, and for the first 3-4 weeks after planting, a deep watering that thoroughly soaks the garden will be needed at least once a week.
Did you know that you don't need chemicals to kill your water-thirsty lawn? Sheet mulching is an easy process of layering cardboard and mulch right on top of the grass. Plus, you can plant your new garden straight into the mulch.
To calculate mulch in yards, it is essential to note that one cubic yard of material will cover an area of 324 square feet at a depth of an inch. To determine the total amount of mulch needed, the formula is: Square footage x desired depth (in inches)/ 324.
How deep should I mulch? Mulch should be applied to a depth of 100mm. This will provide an effective weed suppressing layer and maximize moisture retention. Should customers wish to apply less than 100mm we recommend using Weedmat prior to mulching.
To dry out soil quickly, you can apply hydrated lime to the soil, add compost and then turn the soil thoroughly to aerate it. Adding hydrated lime and compost will help absorb the water in your soil, and turning it all will help distribute the water in the waterlogged soil throughout your garden.
While mulches do retain moisture in the soil, it will still be necessary to water plants growing in mulched soils. Water should be targeted beneath the mulch specifically at the root zone of desirable plants.
If you have an area in your landscape that's occasionally wet but dries reasonably well in a few days, you might consider these perennials, shrubs and trees: astilbe, cardinal flower, sedge, rose mallow, summersweet, hibiscus, European cranberrybush viburnum, leucothoe, fothergilla, inkberry, sweetspire, sweet and ...
Straw or Hay
If you're planting a vegetable garden, consider covering it with straw, salt hay, or weed-free hay. Not only does it look clean and crisp, but this type of mulch retains soil moisture, prevents weeds and adds organic matter to the soil when it breaks down.
The only way to keep mulch completely in the flower bed or garden is to edge it with something high enough to hold in the mulch in place during a storm. Some ideas include: Landscape Edging: Wood, metal, plastic, or stone edging can help keep mulch in its place. Make sure the edging is several inches high.
Mulch should be replenished or replaced as you start to see signs of decomposition, soil erosion and discoloration. And you'll mostly likely need to remove and replace all mulch after 5-6 years.
In general, mid- to late-spring is mulching season; this is when the soil is warming up from the freezing temperatures it experienced all winter. Mulching too early will slow down the warming process, which the soil needs to do its job.
The practical life-time of mulch can be anywhere from 4-7 years. This is how long it takes for a layer of mulch to completely break down, although it depends on a number of different environmental factors (e.g. in direct sunlight, covering very wet ground etc).
Lawn clippings usually do not need to be bagged. Recycling lawn clippings can reduce your fertilizer needs and improve your soil. Recycling clippings to the lawn does not contribute to thatch. If you must remove clippings, they can be composted or used as mulch.
Mulching materials can either be organic or inorganic. Common organic mulches include wood chips, shredded bark, pine needles, shredded leaves, and straw. Lawn clippings and even crop by products such as ground corncobs and hulls from buckwheat or cocoa beans are also choice covers.
The best time to apply winter mulch is just after the first hard frost. By putting mulch down at this time, you will help stabilize the temperature of the soil right around freezing. Applying mulch too soon may delay freezing and encourage heaving and thawing.