Efflo will tick stronger for 10 seconds after you swiftmend, you dont need to cast it after(you can, losing global), you ideally want it already down before you swiftmend. Unfortunately fights are more than ever about knowing damage patterns and positioning to make use of t20.
You would waste some buff time if you place Efflorescence after using Swiftmend. Additionally you get more from the buff if Efllorescence was placed some time ago because of Joy of Spring (artifact trait).
flourish right after wild growth and it gives you a secret extra tick.
"blanket" the party in rejuvs (in general just do this anyways) before wild growth and it procs that cool gold dragon in your weapon.