A blogger asks: "Marigolds seem effective against soil pests. Is this true, and which variety should I plant?"
Marigolds are proven to repel nematodes—tiny microscopic worms up to 2 mm long that infest soil and severely damage plant roots. An infested garden can spell disaster for your vegetables.
The top choice for gardeners is Tagetes signata, featuring simple yellow flowers. This prolific, rustic bloomer not only beautifies your space but also wards off aphids with its distinctive scent.
Find it as potted plants or seeds. Harvest seeds in late summer for easy sowing next year.
Photo credit: https://www.bonplant.fr/tagetes%20signata.html