At Twin Ports Pest & Lawn Management we use a high quality, slow release fertilizer. We use a stabilizer in our fertilizer that feeds for up to two months no matter how much or little rain we have.
Our fertilizer has many benefits compared to others:
doesn't cause excessive top growth(reduced mowing)
combined with iron, gives a nice deep green color
isn't released by water, but by microbes so rain doesn't matter
all liquid formulations( no need to water in)
The fall application of fertilizer is a quick release fertilizer (winterize) for fast storage of nutrients.