Ewwwwwwwwwwwwww..... You actually liked Zyra's old passive? It was decidedly literally the worst part of her kit. Worthless unless she died, on a champ designed to be ultra safe. Very poor damage, I don't remember it even having an AP scaling, it very very very rarely "punished" players for all-inning her. Very long charge time, very slow wind-up time, very slow thin projectile, enemies would frequently be out range before she could even utilize her passive. Reworking her passive was the best buff they could've given her.
Zyra's Q isn't meant to be "strong" or "satisfying," it's meant to summon plants & nothing more. As it is, they already increased its range, at least in terms of how close it needs to be to seeds to grow them. Q is a 1-point skill and leveling it last is her highest winrate.
As far back as I know, Zyra has never been a viable mid-laner, even on release. Rito quickly changed their approach to her to match the playerbase's playstyle of her as a support (something Rito almost never does today.) In fact, it wasn't until semi-recently that Rito has been caving in to the misguided & unrealistic demands of a tiny few players that want to troll-pick her into midlane, where she has never been viable. Adjusting her scalings, adding a "seed reset on minion-kill" that ultimately all came at the tradeoff cost of just nerfing support Zyra, aka her only viable position; all for the failed attempt at getting her into the mid lane.
How hilariously ass-backwards that somebody is demanding Zyra be reverted; under the guise of trying to push mid-Zyra; when her current iteration is matter-of-factly the most mid-centric & mid-"viable" her kit has ever been in her patch history. The logic of this thread is backwards & the voiced goal contradicts the suggestions demands. No. Zyra should not be pushed for mid, it hasn't worked & it can't work. Her "seed reset" needs to be removed & her scalings need to be traded for higher bases; in other words she needs to be balanced as a support, because she is a support.
I do agree that her plants should be more durable, specifically against dots. They die instantly to Fire Cape, an item that I never see bought except for specifically against Zyra. One item shouldn't make a champion useless & an armor item especially shouldn't be making a magic-damage champion useless. Strongly effective? Yes. Useless? No.
Sincerely -
A Mastery 7 Zyra