Yes, you can catch shiny Bellsprout in Pokemon GO, but it is extremely rare.
In fact, the exact shiny odds for Bellsprout in Pokemon GO are 1 in 500. This means that, on average, you’ll need to encounter 500 Bellsprout before finding the shiny version.
If you want to catch a shiny Bellsprout in Pokemon GO, by far the best time to do so is during the Bellsprout Spotlight Hour.
During this event, the number of Bellsprout spawning will be significantly increased, and the more you encounter, the more likely you are to find the shiny one.

What Color is Shiny Bellsprout?
The shiny version of Bellsprout has a gold head and leaves, but a light brown stem.
Not only does this new color palette make it appear quite different to the green standard version, but gold shiny Pokemon are always highly sought-after!
Unfortunately, its evolutions Weepinbell and Victreebel don’t share the gold coloring. Instead, they are mostly lime green.

How to Get Shiny Weepinbell & Victreebel in Pokemon GO
The only way to get shiny Weepinbell and shiny Victreebel in Pokemon GO is by evolving a shiny Bellsprout. This is because the shiny versions of these Pokemon do not spawn in the wild.
You need 25 Bellsprout Candy to evolve shiny Bellsprout into shiny Weepinbell. Then, a further 100 Bellsprout Candy is required to evolve shiny Weepinbell into shiny Victreebel.
Find out the fastest ways to earn Candy in Pokemon GO so you can evolve your shiny Bellsprout as soon as possible!
