So last weekend I was driving my boat through the keys in Parker and noticed a lot of grass.
Fast forward when I left the keys, Grass was stuck in my jet and I had to dive down and get it all out.

My question is, is there grass year around in there or does it only grow when the water starts to warm up and then dies off?
I am going to be renting a house at the end of Aug and will avoid the keys if the grass is there that time of year.
I do not want to be diving down to take grass out of the jet every time I take the boat out.

Any info would be great.