Tulips actually meant perfect love from what i have read.
Zinnias meant endurance. It also means simplicity.
Each color offers a distinct meaning: red, the lover’s rose, signifies enduring passion; white, humility and innocence; yellow, expressing friendship and joy; pink, gratitude, appreciation and admiration; orange, enthusiasm and desire; white lilac and purple roses represent enchantment and love at first sight.
Lilac symbolizes purity and innocence.
Hibiscus means delicate beauty, unity and peace.