When To Grow Petunias

⚠️ Petunia seeds are tiny and need — press into soil, don’t cover.

You can plant petunias in the summer, but they require extra attention. when to grow petunias

Petunias are (grown as annuals in most climates). 👉 Never plant outdoors until after the last spring frost. Soil temperature should be at least 60°F (15°C) — ideally 65°F (18°C). ⚠️ Petunia seeds are tiny and need —

| Type | Days from seed to bloom | Best planting time for max flowers | |------|------------------------|-------------------------------------| | Grandiflora | 10–12 weeks | Early spring (transplants) | | Multiflora | 8–10 weeks | Mid-spring | | Wave / Trailing | 10–12 weeks | Early spring (needs long season) | | Spreading (e.g., Surfinia) | 9–11 weeks | Late spring after soil warms | when to grow petunias