Is it possible to fertilize with 10-10-10 too frequently ?
Yes, you can over fertilize. Doing so for long enough can be very detrimental, as it increases the content of salts in your soil, making it inhospitable for the plants you are trying to grow. Another problem with over fertilizing is the excess runs off in the rain runoff. It then gets into the storm drainage systems and ends up directly in our rivers and lakes. So if you’re going to use it, follow the directions on the packaging. Also, use a good winterizer in late fall. It promotes good root growth and helps prevent winter damage. Pre-emergent needs to be applied just before the weed seed begins to sprout. The timing depends on your area and climate, and varies from year to year due to weather. If the growth has already emerged, you’re too late and need to apply a different herbicide. It’s sometimes beneficial to apply both a pre and a post emergent herbicide, but check the products to be sure they can be mixed together.
