If you’re going to use the Cover Crop method mentioned below to mass-plant French marigolds and save your soil, do NOT keep buying new seeds.
Marigolds are a "buy them once" kind of plant. Every single dead bloom you pinch off contains dozens of new seeds.
Instead of throwing away spent flowers:
1. Pop open the dried base.
2. Pull out the black-and-white needle seeds.
3. Store them in a cool, dry envelope.
By the time next spring rolls around, you’ll have thousands of free seeds to build a dense, pest-repelling cover crop for your entire garden bed without spending a single dime.
Infinite garden glitch unlocked.