The "chocolate" center should be firm and free of pollen dust. If you see loose pollen, the flower is further along in its lifecycle.
Highly popular among professional florists because they are pollen-less, meaning they won't drop yellow dust on your furniture. They come in colors like white, lemon, and classic yellow. how to buy sunflowers
Use room-temperature water. Some florists recommend warm water (not hot) initially to help "tight" heads open up more quickly. The "chocolate" center should be firm and free
Use a tall, heavy vase with a wide mouth to support their top-heavy weight. They come in colors like white, lemon, and classic yellow
Buying the perfect sunflowers is all about timing and structural cues. To ensure you get the most life out of your bouquet, look for stems where the petals are or bowl-shaped. Avoid flowers with petals that are already reflexed (curved backward), as this indicates they have already reached their peak and will fade quickly. Buying Guide for Fresh Sunflowers
Store them in a bright spot, but avoid direct sunlight or drafts, as heat will cause them to wilt faster.