A ballhead alone doesn't help much when you do panoramas because it doesn't ensure that the camera remains level while you change its orientation. From that point of view it is not much better than shooting hand-held.
If you want to shoot panoramas with a tripod, you need something that lets you turn your camera around a strictly vertical axis. This mean
- To make sure that your axis is vertical. You can spend a while adjusting tripod legs, you can use your ball-head (if it is good enough), but a better solution is replace the ball head by a levelling head(*):
2) You add to this something that prevents any other moves than the required rotation. Ideally this means a panoramic head. The simpler panoramic heads aren't too heavy or expensive:
There are more expensive models with sliding plates that will let you rotate your camera around the optical center of your lens, but this is not necessary for landscapes. You can also use a "3D" head in which you lock up the two unneeded axes (this 3D head can often replace the ballhead for most purposes, but it is heavier).
Last, for maximum coverage it is common to use the camera in portrait mode, so you may want to invest in an L-bracket:
(*) I cannot praise enough the levelling head. In most of my uses for a tripod the camera is hozizontal or nearly so, the range of the levelling head is enough. It is lighter and takes less space than a ballhead or a 3D head, it balances the camera better than a ball head and once locked it won't move.
PS: This said, my panorama software (Hugin) can compensate for my signature 1.6° CCW tilt when I shoot panoramas hand-held.