I haven't always had the best of luck growing peppers, but last year I grew a bumper crop. I attribute this to finally discovering the right variety of sweet peppers for my area.
I ordered Takii's Ace Peppers from Pine Tree Seeds last year and started them inside in March. They produced early and continued to produce all summer up until the first killing frost.
If you struggle with growing sweet peppers in your short-season or Maine garden, I highly recommend trying this variety. They are bred for short seasons and produce green peppers in 50 days or red peppers in 70 days. As you can see from the image, the peppers are longer than a typical pepper. In fact, when mine began to form I was afraid I had accidentally planted some kind of hot pepper.
Until next time . . . HAPPY GARDENING!