To plant marigold seeds successfully, follow these steps: 1. Timing and Location
- Plant marigold seeds after the last frost date in spring when soil temperatures are around 70-75°F (21-24°C) for optimal germination
- Choose a sunny spot that receives at least 6-8 hours of direct sunlight daily
- Ensure the soil is well-drained and free of weeds and large rocks
2. Soil Preparation
- Prepare the soil by loosening it and, if needed, amend with organic matter like compost or well-rotted manure to improve fertility and drainage
- Rake the soil surface smooth for even planting
3. Sowing Seeds
- Sow seeds directly in the garden by scattering them thinly or planting in rows, spacing seeds about 1-2 inches (2-5 cm) apart for easier thinning later
- Marigold seeds are small and should be planted just beneath the soil surface or lightly covered with no more than 1/4 inch (about 0.5 cm) of soil because they need light to germinate
- Place seeds horizontally on the soil surface and press them down firmly
- If starting indoors, sow 3-4 seeds per seed-starting pot filled with seed-starting mix, cover lightly, and keep moist
4. Watering and Care
- Water gently but thoroughly after planting to keep the soil moist but not waterlogged
- Maintain even moisture until seeds germinate, which usually takes 4-10 days depending on temperature
- Protect young seedlings from pests and harsh weather until established
- Thin seedlings gradually once they emerge to allow 8-12 inches between plants depending on variety size
5. Optional Indoor Start
- Start seeds indoors 6-8 weeks before the last frost in seed trays or pots with drainage
- Keep containers warm (70-75°F) and provide ample light (grow lights or sunny window)
- Harden off seedlings before transplanting outdoors after frost danger has passed
By following these steps, you can grow healthy marigold plants that bloom beautifully throughout the growing season
