Direct sow after last frost, spring or fall. Prefers mesic to dry conditions, and soil that is rocky or loamy, suitable for xeriscaping. Plants that are grown in sunny locations require more moisture than those growing in shade. Barren or disturbed locations that are largely devoid of ground vegetation are preferred. American Pennyroyal will grow where grass does not. Good to compete with invasive weeds. Habitats include dry upland woodlands, rocky woodlands, areas along woodland trails, rocky glades, receding bodies of water, pastures, and fallow fields. Grow in containers and deadhead to limit spreading. Soil pH 5.6–7.5. Hardiness zones 6-9. Annual.
Days from maturity calculated from the date of seeding. Average 56,700 seeds per ounce. Usual seed life: 5–6 years.
Planting Depth surface
Soil Temp. Germ. 68˚F
Days to Germ. 7-21
Plant Spacing 6–12”
Row Spacing 18-24”
Days To Maturity 90-120Full Sun
, Dry Climate