Why Does My Basil Keep Flowering On Me?

I'm growing basils but they're like autoflowers... flowering in mid may. no matter how many flowers i pull out they just keep coming more and more.

every four weeks cut the plant down to the bottom two sets of leaves and let it grow out again..

funny, last year i had a plant that grow 3' tall... and only started flowering in autumn... this year they have hardly grown before flowering.

Which type of basil is it?

emmm... i dunno the regular green one? looks like this:
http://myseedgarden.blogspot.com/2009/02/genovese-basil-ocimum-basilicum.html

In your link:

"Pinch it back early and often to encourage bushiness. Do not let it flower unless you want to let it set seed as this destroys the flavor and shortens the lifespan of the plant."

This is all you can do. I've kept a Genovese going for over 2 years now, it's a great plant.

Just keep trimming, just keep trimming.

Its the heat this summer. Basil likes it on the cooler side. I baby mine through for a fall harvest, but summers are to hot in many areas.

There's a non-flowering cultivar..Greek Columnar, I think. Smaller leaves, but tastes pretty much the same imo.

You can start seeds every four wks to have the young new leaves you want that way when one goes into flower you just cut sprigs from newer plants