Growing Pennyroyal Plants In The Garden
Pennyroyal is the common name for two different plants, the American and European. Both plants are in the family mint, which includes a wide assortment of plants which are useful medicinally and herbs. Pennyroyal plants can be propagated from seed, cuttings or spring division. The seed needs light to germinate but grows quickly once it sprouts. Plant them in prepared seed beds outside after all danger of frost. Sow the seed on the surface of the soil and mist the bed to moisten it. Keep it moist and germination should occur in two weeks. Divide established plants every three years in early spring for the best form and production. Pennyroyal is an easy to grow herb. European pennyroyal plants makes a wonderful trailing plant when grown in a hanging basket or at the edges of mixed color containers.
American pennyroyal plants can be grown indoors in troughs or outside in the kitchen garden. Pinch the terminal ends of the herb to stimulate bushiness and a more compact growing shape. Grow pennyroyal as a ground cover in sunny areas with junky soil. The plant will persist even in unfavorable conditions and can be helpful in vegetation-free zones as an erosion control.