Zyra Jungle Guide?

It is but not too effective. Meddler recently spoke about a buff to Zyra mid and

"Looking at AP junglers a bit

We're going to take a look at a couple of AP champs from a jungle perspective, see if we can give them a bit of help. Not sure on timing, given there's some more critical work (runes stuff mainly) that's demanding a lot of work right now, hoping to do some explorations during the next few patches though. That might mean work on AP champs who already jungle, or at least used to in the past, could also mean work on AP champs with play patterns that would be fine in the jungle who just haven't been good enough at clearing historically to do so (e.g. someone like Morg might be a good candidate, Annie given her high reliability when ganking probably not)."

so hopefully it will be more viable soon.

Her clear speeds are too slow currently. Combine that with insanely low MS, and you fall behind rather quickly compared to meta junglers. Her ganks need to be perfect or else she wastes even more time.

Since the damage and health of her plants got nerfed after her rework, she really struggles where she used to shine.