- Soil requirements: Petunia seeds prefer well-draining soil with a pH level between 6.0 and 7.0. The soil should be rich in organic matter to support healthy growth.
- Sunlight needs: Petunias thrive in full sun, requiring at least 6 hours of direct sunlight per day. They can tolerate partial shade but may produce fewer flowers.
- Watering requirements: Petunias need regular watering, especially during dry periods. Water them deeply once or twice a week, ensuring the soil remains consistently moist but not waterlogged.
- Planting season: The best time to plant petunia seeds is in the spring, after the last frost has passed. In warmer climates, they can also be planted in the fall.
- Depth and spacing: Sow petunia seeds on the surface of the soil and lightly press them down. Do not cover them with soil as they need light to germinate. Space the seeds about 6 to 12 inches apart, depending on the variety.
- Germination time: Petunia seeds typically germinate within 7 to 14 days under optimal conditions.
- Maturity time: Petunias usually reach maturity and start blooming within 10 to 12 weeks after planting.
- Harvesting time: The best time to harvest petunia seeds is in the late summer or early fall when the seed pods have dried and turned brown.
- Harvesting tips: To harvest petunia seeds, wait until the seed pods are fully dry. Gently break open the pods and collect the seeds. Store the seeds in a cool, dry place in an airtight container for future planting.
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