Harris Seeds Petunia Trilogy

Unlike many spreading petunias that can become leggy, this variety features a controlled, dome-like habit with tight branching. It is also less sensitive to day length, which means it will start blooming earlier in the season and stay dense throughout the summer.

These are pelleted seeds, which makes them easier to handle and sow. You will need to maintain a soil temperature between 70-75°F for successful germination, which typically takes 7 to 12 days.

While you can, this variety is specifically bred for containers, hanging baskets, and mixed pots where its trailing, dome-like structure really shines. If you do plant them in the ground, ensure they have enough space, as they will spread 30 to 36 inches.

You shouldn't need to prune it often. Its naturally tight branching and controlled growth habit keep it looking full and uniform on its own, reducing the need for constant maintenance.

The flowers feature blush-white petals with a striking deep purple center. This contrast creates a sophisticated, high-end look that works well as a focal point in mixed arrangements.