The true citronella plant grows best in U.S. Department of Agriculture hardiness zones 10 through 12. Cymbopogon nardus is a grass native to Southeast Asia from which citronella oil is derived. It prefers to grow in slight shade in a well-draining, loamy soil.Continue Reading
Citronella grass needs around 30 inches of water per year. Daily watering is recommended. If planted in full sun, the leaves may scorch and die.
Citronella has a clumping habit and tends to be propagated through seeds or division. It quickly crowds out other landscape plants with its aggressive growth habit. It grows well in containers but needs dividing every few years.
If grown in rich soil, citronella does not need fertilizer. Use a balanced liquid fertilizer every spring if desired. In colder climates, it is best grown in a container and brought indoors if temperatures fall below freezing.Learn more about Outdoor Plants & Flowers
Pittosporum tenuifolium, also commonly called Silver Sheen or Silver Sheen Kohuhu, is an evergreen shrub that is hardy in U.S. Department of Agriculture plant hardiness zones eight through 11. This upright-growing shrub has small, silvery-green leaves that give it a shimmering appearance in the sunlight. It blooms with purple flowers in spring and typically grows 15 to 20 feet tall and 6 to 8 feet wide.Full Answer >
Liriope should be planted in U.S. Department of Agriculture plant hardiness zones 7 through 11 in loose, moist, fertile soil. It can be pruned back to the ground in the winter, as new growth quickly appears in the spring. Water regularly throughout the growing season, preventing standing water around the plant. Standing water encourages the presence of snails and slugs that feed on its leaves, harming the plant.Full Answer >
Planting guides for U.S. Department of Agriculture hardiness zone 7 provide advice regarding when to plant specific plants, flowers and vegetables in the zone, where the lowest temperatures range from 0 to 10 degrees Fahrenheit. Some planting guides offer month-by-month planting suggestions.Full Answer >
Some perennial autumn-blooming flowers in U.S. Department of Agriculture zones four through nine are rudbeckias, asters and chrysanthemums. Calendulas and bachelor’s buttons are annuals that bloom in the fall.Full Answer >