- Soil requirements: Geraniums prefer well-draining soil with a pH level between 6.0 and 6.5. A mix of garden soil, peat, and perlite or sand works well to ensure proper drainage and aeration.
- Sunlight needs: Geraniums thrive in full sun, requiring at least 6-8 hours of direct sunlight daily. They can tolerate partial shade but may not bloom as profusely.
- Watering requirements: Water geraniums moderately, allowing the soil to dry out between waterings. Overwatering can lead to root rot, so ensure the soil is not constantly wet. Water deeply once the top inch of soil feels dry.
- Planting season: The best time to plant geranium seeds is in early spring, after the last frost has passed. Indoor sowing can be done 8-10 weeks before the last expected frost date.
- Depth and spacing: Sow geranium seeds at a depth of 1/8 inch (3 mm) and space them about 6-12 inches apart to allow for proper air circulation and growth.
- Germination time: Geranium seeds typically germinate within 7-14 days under optimal conditions. Maintain a consistent temperature of 70-75°F (21-24°C) for best results.
- Maturity time: Geraniums usually reach maturity and begin to bloom within 12-16 weeks after planting. The exact time may vary depending on the specific variety and growing conditions.
- Harvesting time: The best time to harvest geranium flowers is in the early morning when the blooms are fresh and fully open. This is also the ideal time to collect seeds if you plan to save them for future planting.
- Harvesting tips: Use clean, sharp scissors or pruning shears to cut the flowers. For seed collection, allow the seed pods to dry on the plant before harvesting. Store seeds in a cool, dry place in an airtight container. Deadhead spent blooms regularly to encourage continuous flowering.