A longtime favorite way to bring a splash of color to the garden while repelling pests too. 40 seeds per pack. Annual. Free shipping on orders over $34. Natural Insecticide! “Secretions from the roots of growing plants have an insecticidal effect on the soil, effective against nematodes and to some extent against keeled slugs. These secretions are produced about 3 - 4 months after sowing. The whole plant contains substances that are toxic to cockroaches. The growing plant repels whitefly and can be grown near tomatoes to keep that crop free of the insect. “(Pfaf.org data)