SPRING 2021 Promo: SMART LAWN PLAN Use BLC20 to get $20 off + Free Soil Test

What should I do for my neglected St. Augustine lawn?

by Liz
(Keller, TX USA)


We just moved into an older home. The yard was really neglected. There is St.Augustine grass but it is crying out for food. What is the best ORGANIC fertilizer for St.Augustine and when is the best time to fertilize in Texas?

I am only interested in organics because one of my daughters has asthma and is very chemical sensitive.



The best time to fertilize St. Augustine - and other warm season grasses - is 3 weeks after the lawn has started to green up in the spring. Three applications of slow release nitrogen at a rate of 1lb per 1000 ft2 will keep your lawn healthy and green. Space these feedings 10 weeks apart - starting in the spring after green-up, summer and then early fall. Watch for iron deficiency, this can be a problem with St. Augustine.

Best organic fertilizer? Well...fertilizers are used to supply nutrients to plants and the plants don't care where it comes from. For lawns, the most important nutrient in fertilizer is nitrogen and it is important to supply the proper amounts.

Your daughter's asthma being a very important concern, look into using a natural organic lawn fertilizer in liquid form. Granular and pelletized organic fertilizers are commonly made from poultry manure, sewage sludge or plant by-products - these are dusty and could also aggrivate your daughter's asthma.

That being said - Sustain, Ringer and corn gluten meal make excellent natural organic lawn fertilizers.

Comments for What should I do for my neglected St. Augustine lawn?

Click here to add your own comments

Apr 19, 2013
Using a liquid organic fertilizer on St. augustine grass.
by: ron

I need to know what the best organic liquid fertilizer is for feeding and greening up a St. augustine grass lawn. If you have had success greening up your lawn with an organic liquid fertilizer application, just give me the name of the organic liquid application fertilizer you used and your application technique. I would be most greatful for a short, "to the point" answer.

Jul 30, 2016
by: Anonymous

plants may not care where their nutrients come from but using industrial fertilizer for years on end not only degrade the soil which makes for uglier grass these fertilizers may contribute to conditions such as brown patch. stick with Ringer and other similar products.

Click here to add your own comments

Return to Lawn Questions.