Planting sunflower seeds in eggshell 'cups' When the seeds sprout, just crush the shell a bit and plant the whole thing in the ground. Can also plant tomatoes or other veggies the same way.
When is the best time to plant sunflower seeds?
Harvesting sunflower seeds: A few tips and tricks on this, as well as how to tell when they are ready. This site has lots of sunflower info, nice to keep handy, jic.
Time to Harvest Sunflower Seeds: Here’s How to Do it - Butterfly Beat
harvesting and drying sunflower seeds,
Covers planting and thinning sunflower seeds; common problems, pests and diseases; how sunflowers are pollinated; how to choose varieties; and how to harvest sunflower seeds. Thorough, organized for easy reading, and gorgeous photos.
The Best Time to Plant Sunflower Seeds | Home Guides | SF Gate
How to Plant Sunflower Seeds in 7 Steps