I come up with my own smart *** answers, thank you!
It looks like you'll have a five row garter stitch border, then you'll work in stockinette stitch and do gradual increases. Is this a sleeve?
So on row 5 of the stockinette part, you'll increase one stitch at each end--kfb is good for this. Then in row 11 and row 17 you'll also increase one stitch at each end. Then knit in st st until the entire thing from the beginning is 3.75 inches.