Aromage monsters have multiple effects whenever you have more LP than your opponent, or when you gain LP. Pair this with cards like Rose Lover to help special summon plant monster(s), and making it immune to traps for a turn can win games pretty quickly.
Rose Lover is quite crucial in the deck. It can be used to special summon any plant type monster in your hand, regardless of level, and also making it immune to traps for the turn. This helps with summoning a high level plant monster, or simply making sure you won't get affected by cards like Mirror Wall, or Wall of Disruption. Using it to special summon monsters like Aromage Bergamot if you already have higher LP than your opponent can catch your opponent by surprise and potentially deal high piercing damage to end the duel.
The field spell Aroma Garden helps with gaining LP, activate Aromage monsters' effects, and increase their attack. It's often good to activate it when you get the chance, but if you have Aromage Rosemary face-up and there are no other face-up monsters, you will end up having to switch its position to defense. If your LP is at equal or already higher than your opponent, you can start by summoning Aromage Jasmine, then summon Rosemary before activating Aroma Garden to switch Jasmine to defense.
I've been playing 2 Rose Archer, 2 Cananga, and 3 Legacy World Clash with the basic build. I've been having a lot of success in matches. I also took out Rose Lover since it was too slow to get her effect in the current meta.
Sadly, while the deck can pump out heavy attack, its somewhat inconsistent (I only run one Red), and can only deal with one big guy at a time. I slight solution os running generic removal, such as that one DarkWorld one; or maybe that quick spell that skips your draw phase (not that you needed that because of Jasmine). Or, you know, Acid Rain, since Gears is realistically all you need to remove, because 3000 atk times 2-3. This also allows the use of Balance.