Would plants work as a defensive utility item?

Just so Riot doesn't scrap the idea entirely if it's unbalanced and having it as an item could work a lot better.

• Plants begin spawning in your jungle at fixed locations with semi random timers like Riot said.
• They can only be used by yourself and allies.
• Plants have two hit points and can be killed by enemies.
• Passive ability that periodically stores seeds(recharge time/charges stored scales with level capping at level 13) that can be used to spawn plants near specific locations by clicking on those locations.
• An active ability which summons a plant to fight for your team and then goes on cooldown for 90 seconds.(can be used to tank epic monsters like blue buff, dragon and baron)
• Hidden passive for Zyra. Stats could be like this: 10% CDR, +50AP, +75% base mana regen, +35MR and +300 Health. Costs 2400~ to build.