Preen Weed Preventer for Southern Gardens
Description
Preen Weed Preventer inhibits most weeds from germinating for up to 4 months in flower beds, and around ground covers, trees, and shrubs. Although this product will not kill existing weeds, it will prevent new weeds from sprouting – eliminating the need for difficult and time-consuming hand weeding.
Without weeds, your valuable plants can grow larger and stronger and your beds will stay neat and weed-free all season long!
Application
When to Apply
Apply Preen Weed Preventer anytime during the growing season only around established plants. It should not be used on flower seeds, but may be used after flowering plants have germinated and are 2-3 inches tall. Since it does not kill existing weeds, you must first remove any that have already begun to grow.
By applying Preen Weed Preventer as early as possible, however, you may eliminate the need for hand weeding. For the maximum in plant maintenance, reapply every 4 months.
Applying Around Established and Transplanted Plants
For flowers, roses, herbs, ground covers, ornamental grasses, shrubs, and trees, sprinkle Preen Weed Preventer evenly over the entire soil surface, then water the weed preventer into the soil’s surface. Always wash or brush off stray granules from plant foliage.
Applying with Mulch
For best weed control, we recommend applying Preen Weed Preventer after spreading mulch on your flower and shrub beds. Sprinkle Preen Weed Preventer on top of mulch at surface rate, then water into the mulch to activate.
Weeds Controlled
- annual bluegrass (Poa annua)
- annual ryegrass
- barley
- barnyardgrass (Echinochloa crus-galli)
- bittercress (Cardamine)
- black medic (Medicago lupulina)
- brome (Bromus)
- buttercup (Ranunculus californicus)
- Carolina geranium (Geranium carolinianum)
- carpetweed (Mollugo verticillata)
- chickweed (Stellaria media)
- corn speedwell (Veronica arvensis)
- creeping woodsorrel
- crowfoot grass (Dactyloctenium aegyptium)
- dallisgrass (Paspalum dilatatum)
- garden spurge
- goosegrass (Eleusine indica)
- green foxtail (Setaria viridis)
- henbit (Lamium amplexicaule)
- kikuyu grass
- lambsquarters (Chenopodium album)
- large crabgrass (Digitaria sanguinalis)
- lespedeza (Lespedeza cuneata)
- London rocket
- marestail (Conyza canadensis)
- mustard
- parsley piert (Aphanes)
- perennial ryegrass (Lolium perenne)
- pineappleweed (Matricaria discoidea)
- prostrate knotweed
- prostrate spurge (Euphorbia supina)
- purslane (Portulaca oleracea)
- redroot pigweed (Amaranthus retroflexus)
- sandbur
- shepherd's purse (Capsella bursa-pastoris)
- smooth crabgrass (Digitaria ischaemum)
- smutgrass
- southern crabgrass (Digitaria ciliaris)
- spotted spurge (Chamaesyce maculata)
- wild oat (Avena fatua)
- yellow foxtail (Setaria glauca)
- yellow wood sorrel (Oxalis corniculata)
Available Sizes
- Preen Weed Preventer for Southern Gardens (4.25 lbs)Covers 1,000 sq ft2463844


















