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Aug 22, 2022 · Here are the steps for planting petunias from seed: Spread the tiny petunia 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.
- Marie Iannotti
- 3 min
- Petunia spp.
How to Plant Petunias. Petunia seeds are very small (dust-like!) and need lots of light in order to germinate. When the young plants have three leaves, plant them outside. Space the plants about 1 foot apart. If you’re planting petunias in containers, use a container potting mix that will drain well. Growing.
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2. Give Them Plenty of Light. Place your seeds in grow cells. Be careful to sprinkle the seeds on top of the dirt, but don’t cover them up. From here, be sure to place the trays under a grow light to give them ample amount of sunlight. If you cover the seeds you’ll block the sunlight and could hinder germination.
- Jennifer Poindexter
Oct 2, 2023 · For the best results with many blooms, plant in full sun. They can tolerate some shade but should have at least 6 hours of sunlight per day. If you live in warmer regions, petunias can handle partial sunlight. Try to have partial shade in the afternoon when the temperatures are at their peak.
Plant the petunias: Dig a hole that is slightly larger than the plant’s root ball and place the petunia in the hole, backfilling with soil and gently pressing down to remove any air pockets. Space adequately: When planting petunias, it’s important to space them out properly to allow for proper airflow and growth.
Follow these steps for planting petunias in pots. Fill your pots with fresh potting soil. Remove petunia plants from their nursery pots and tease out roots. Scoop out a hole in the soil that is slightly bigger than the root ball. Place the plant in the hole with the base level with the surrounding soil.
Oct 7, 2023 · Petunias will tolerate some shade, but they won’t flower as well as in the full sun. The best soil for growing petunia: Petunias grow best in fertile, well-draining soil with a pH level between 6 and 6.5 (slightly acidic). When planting spreading petunias in the ground, work in compost and peat moss to amend the soil.
