Harris Seeds Petunia Trilogy Seed

The Trilogy series is specifically bred to be less sensitive to day length, which means these petunias flower earlier in the season and maintain a longer, more consistent bloom cycle than many standard varieties.

Yes, these seeds are pelleted. This coating makes the tiny petunia seeds easier to handle, see, and sow accurately, which is particularly helpful for indoor seed starting.

These are spreading petunias that reach a spread of 30 to 36 inches. They are best suited for large hanging baskets or spacious planters where they have enough room to showcase their dense, dome-shaped habit.

For the best results, maintain a soil temperature between 70-75°F. Germination typically occurs within 7 to 12 days under these conditions.

No, these are annual plants. They are designed to provide a full season of heavy flowering, but they will not survive the winter and will need to be replanted the following spring.

The Trilogy series is naturally tightly branched and maintains a controlled dome habit on its own. While you can deadhead spent blooms to encourage further flowering, you generally do not need to pinch them to achieve a dense, full shape.