Your St. Augustine grass needs one pound of soluble nitrogen for every 1,000 feet of lawn. When can I fertilize my new sod? But what is the best fertilizer for Floratam St. Augustine grass? Environmental conditions also affect when to fertilize grass in Texas. A fresh cut the first thing in the spring removes some of the old tissue and stimulates growth. Read and follow label directions carefully. The fertilizer should be used at the rate of 6 lbs. St. Augustine Grass in South Florida. However, you can keep your lawn green all year long in temperate regions by overseeding your St. Augustine with a cool-weather grass, such as fescue, in fall. Do not overwater St. Augustine grass to avoid pooling water. It comes in an easy-to-use bottle for quick and easy application. A. Fertilize when your St. Augustine has fully greened up and is growing this spring or you'll only be helping the winter weeds along. St. Augustine Lawn Care Application 1 Early Spring. Do not fertilize after mid-September. We think this guide will help by breaking down the best fertilizers for St. Augustine Grass and how to choose the right product for your lawn. This grass can tolerate a pH of 5.0-8.5 , giving it a larger range than zoysia. Repeat the St. Augustine fertilizer schedule every 6 weeks until 6 months old. Apply phosphorus fertilizer adequately and keep a good watering schedule to help with quicker root and foliage development. Here are the 8 Best Fertilizers for St Augustine Grass 1) Scotts Turf Builder Southern Triple Action. (Be sure to follow all label directions.) Fertilize St. Augustine grass every six weeks thereafter until mid-September. Although it has not been officially evaluated for shade tolerance, the dwarf St. Augustinegrass cultivars all have better tolerance to shade than the standard cultivars. St. Augustinegrassis not tolerant of heavytraffic or cold weather. What Fertilizer to Use. If you have a bermuda lawn, use Scotts® Turf Builder® WinterGuard® Fall Weed & Feed 3 instead. St. Augustine grass requires about 1 pound of nitrogen per every 1,000 square feet of lawn per month during the growing season to maintain good color and density. However, there are many different opinions about which ratio is best, which is why checking your soil’s pH is important. When you buy fertilizer the label will have numbers on it, like 15 - 5 – 10, or 10 – 3 – 10. St. Augustine grass (stenataphrum secundatum) is a robust grass that looks beautiful when it is well tended to and fertilized well, which is why I think it’s important to take a look at the best fertilizers for St. Augustine grass. St. Augustine The appearance of soft leaf St Augustine grasses can become extremely pale when lawn fertilization is either forgotten or neglected. 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