The castor beans are the most effective repellent to moles. You might plant them for their beauty or just to keep the moles out of your yard.
Common name: castor bean, castor oil plant, palma christi, ricin, wonder tree, krapata, djarak, reer.
The castor bean plant, an erect, tropical shrub or small tree, grows up to 30 feet tall. As an annual in the cooler zones, it grows up to 15' tall. Do you want a private hedge in less than 2 months? Then the castor bean is the right plant for you. The tropical look gives your yard an exotic flair.
Hardiness: USDA zone 2 - 7 as a annual and 8 - 11 as a perennial.
Propagation: seeds and cuttings.
Caution: Plants are toxic, especially the seeds. The perfect plant to chase moles away.
Soak seeds in warm water for 24 hours. Plant seeds after all danger of frost 1 inch deep in a sunny location. Germination needs appr. 4-6 weeks.