How to Grow Marigold, Gem
Tagetes tenuifolia
Your complete guide to growing Marigold, Gem.
📷 Wikipedia: MicrogreenWhen to Plant Marigold, Gem
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | January – December | — | January – December |
| Zone 2 | January – December | — | January – December |
| Zone 3 | January – December | — | January – December |
| Zone 4 | January – December | — | January – December |
| Zone 5 | January – December | — | January – December |
| Zone 6 | January – December | — | January – December |
| Zone 7 | January – December | — | January – December |
| Zone 8 | January – December | — | January – December |
| Zone 9 | January – December | — | January – December |
| Zone 10 | January – December | — | January – December |
| Zone 11 | January – December | — | January – December |
| Zone 12 | January – December | — | January – December |
| Zone 13 | January – December | — | January – December |
Companion Plants for Marigold, Gem
✓ Good companions
Repels Mexican bean beetles and aphids while improving overall garden biodiversity
Deters cabbage worms, flea beetles, and other brassica pests with aromatic compounds
Marigolds help control carrot fly and other root pests through their strong scent
Repels cucumber beetles, aphids, and squash bugs while attracting beneficial predatory insects
Provides natural pest control against aphids and slugs that damage lettuce leaves
Both attract beneficial insects and create a pest-confusing polyculture system
Marigolds deter aphids, spider mites, and other pests that commonly attack pepper plants
Marigolds repel tomato hornworms, whiteflies, and nematodes that damage tomato roots
✗ Keep away from
Produces juglone toxin that stunts growth and can kill marigold plants
Releases allelopathic compounds that can inhibit marigold germination and growth
Allelopathic effects can reduce marigold growth and may compete heavily for nutrients
Nutrition Facts
Per 100g serving (USDA FoodData Central)
