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Here are the steps for plantingpetuniasfrom seed: Spread the tiny seeds on top of a moist seed-starting mix. Gently press them down, but do not bury them as they need light to germinate. Then, cover the container with clear plastic, and put it in a warm spot but out of direct sunlight.

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  • How do you grow perfect petunias?

  • Here are 10 tips from Wave Petunias to help you grow perfect petunias: If you can, plant your petunias early enough in the season to enable them to establish strong root systems before high temperatures set in. When planting petunias, maintain the same plant depth as the original pot or pack. Plant petunias in a sunny location.

  • How do you take care of petunias after a frost?

  • Remember to water them. When the plants have three leaves, you can plant them outside. It鈥檚 best to buy transplants and plant them in light, well-drained soil in full sun after the last spring frost. (See your local frost dates.) Petunias can grow in partial shade, but they will have fewer flowers.

  • How do you plant companion plants with petunias?

  • Companion planting with petunias is often about picking a plant whose shape accents their shape. If you鈥檙e planting in a container and want to try the Thriller, Filler, Spiller effect, plant small upright petunias around a tall, striking plant or add a trailing one to soften the container鈥檚 edge.

  • Can petunias grow in the shade?

  • Petunias can grow in partial shade, but they will have fewer flowers. It鈥檚 better if the plants have shelter from the wind.