Zyra is a good farmer, it may very well farmer with her second attack "rampant growth"
made full combo with both plant and complete your enemy with your ultimate or start at the very beginning to kill them with your plant

her skill is really good to do a lot of combo puts your flower and launch your first attack to attack the enemy from afar or launching your third attack to slow the enemy try to hit your target with your spell especially for your third attack stunt your enemy with your plant and then tie your ultimate