Things You'll Need
Steel-tined garden rake
Flowering plants typically thrive in bright sunlight, but the mulch spread around them does not. From the moment you put wood-chip mulch in a plant bed, it starts to fade, eventually looking dull and unappealing. Replacing wood chips, or bark mulch, is expensive, but you have another option to brighten the area. Using a mulch dye gives mulch a strong, lasting color without the hefty price tag of buying new mulch.
Choose a day to color wood chips when the wind is calm. Doing so will help you direct the mulch dye spray onto the wood chips, not onto you. Put on personal protective clothing and gear, including a long-sleeved shirt, long pants, gloves, safety goggles and a dust mask. Although most mulch dyes are non-toxic, avoiding ending up with an eyeful of dye while you're mixing or spraying it is wise.
Pour water into a garden sprayer, add the mulch dye and mix the ingredients by shaking or stirring the solution with a paint stirrer. Follow your mulch dye manufacturer's label or package directions for the proper amounts of water and dye to mix. For example, one manufacturer advises mixing 4 to 6 ounces of its dye with 1 1/2 gallons of water, but amounts vary among manufacturers.
Point the garden sprayer's nozzle at the wood-chip mulch that is at one end of a plant bed. Hold the nozzle at least 12 inches off the ground, lifting it higher for a wider spray area. Pull the garden sprayer's trigger or push its dispenser button to begin spraying the water-dye mixture. Move the nozzle back and forth to color all the wood-mulch. Walk backward, continuing to wave the nozzle over the mulch.
Wait six hours for the dyed wood chips to dry completely. Rake the wood chips with a steel-tined garden rake, if desired, exposing areas not touched by the dye. Repeat the application process by mixing more mulch dye with water and spraying the mixture on the portions of wood chips that weren't dyed.
Mulch dye color lasts six to nine months in most cases.
Try to plan the mulch dye application to occur at least six hours before rain is predicted to give the color time to set thoroughly.
Mulch dye can stain items such as driveways, rocks and flower petals, although it doesn't typically stick to greenery such as leaves and grass. Cover items in or close to the mulch-dyeing area with plastic or cardboard to protect them from the spray. The dye can stain clothes as well. So wear items you don't mind getting stained.
The dyes color wood chips or bark mulch as well as pine straw, shredded wood mulch and rubber mulch.
Wait at least 30 minutes before walking on the dyed mulch or allowing pets near it. Although mulch takes about six hours to dry completely after it is dyed, it feels dry to the touch relatively quickly.
While studying journalism in the Army and at the University of Missouri, Rob Harris developed a lifelong love of physical fitness and nutrition, contributing often to a dairy industry newsletter. He has also worked with and created blogs for several family businesses including a professional dog kennel and a flower shop, where he used his experience as an avid gardener to grow plants for sale.