- Soil requirements: Trachelium caeruleum prefers well-drained, fertile 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: These plants thrive in full sun to partial shade. They require at least 6 hours of direct sunlight daily for optimal blooming.
- Watering requirements: Water the plants regularly to keep the soil consistently moist but not waterlogged. Reduce watering during the winter months when the plant is dormant.
- Planting season: The best time to plant Trachelium caeruleum seeds is in the spring after the last frost has passed. They can also be started indoors 6-8 weeks before the last expected frost date.
- Depth and spacing: Sow the seeds on the surface of the soil and lightly press them in, as they need light to germinate. Space the seeds about 12-18 inches apart to allow for adequate air circulation and growth.
- Germination time: The seeds typically germinate within 14-21 days under optimal conditions. Maintain a temperature of 70-75°F (21-24°C) during the germination period.
- Maturity time: Trachelium caeruleum plants usually reach maturity and begin to bloom within 12-14 weeks after planting.
- Harvesting time: The best time to harvest the flowers is early in the morning when the blooms are fully open and the temperatures are cooler.
- Harvesting tips: Use sharp scissors or pruning shears to cut the stems. Place the cut flowers in water immediately to keep them fresh. For seed saving, allow the flowers to dry on the plant and collect the seeds once they are fully mature and dry.
![Blue Trachelium Caeruleum Flower Seeds](http://mckennaseeds.com/cdn/shop/products/185_7edcb476-77a0-4923-be08-9d4b8a55d506.png?v=1681158104&width=1445)