I think that "pre emergent" weed control is the best type of weed control. What is pre emergent weed control? A pre emergent is a substance that is used to control weeds before they can germinate or grow. The Happy Gardener carries an awesome pre emergent weed control that is made exclusively of corn gluten and sea vegetables. While initially developed for use on lawns, (called Lawn Weed N Feed) it can also be used in flower beds to control weeds before they can get started. The NPK is approx 3-3-3.
Using the weed control is easy; you simply sprinkle it into the dirt in the flower bed, mix it in a bit in the dirt, water it down and plant your flowers and plants. If you are going to use a weed abatement fabric or other type of weed control along with the pre emergent, put the pre emergent on first, mix it in, water it into the soil, then cover with the fabric before planting. Watering it into the soil allows it to sink deep and catch any weeds that might be hiding down there.
The Lawn Weed N Feed pre emergent weed control from The Happy Gardener protects against crabgrass, dandelions, clover, foxtail, purslane, creeping bentgrass, smartweed, redroot pigweed, barnyard grass, Bermuda grass. So if you want to keep any of those, don’t use this product! Not sure why you would want to keep it, but there ya go. Also keep in mind that this product will not kill already established weeds, but will keep new ones from germinating and growing. So you'll have to pull up whatever weeds may currently be thriving in your plantings.
Also be careful and make sure you know what you are planting. Some plants that have beautiful flowers can actually be considered weeds, especially if you are planting native plants. So know your plants before using this product!
Independent Garden Consultant
The Happy Gardener