Geraniums are popular flowering plants that are attractive and decorative when planted in window boxes. They have exotic leaf shapes and their flowers come in nearly every color except blue and yellow. In areas where the winters are harsh and cold, geraniums are grown as annuals. In mild winter areas, geraniums are perennials and produce spring growth after a period of winter dormancy. To survive freezing winters, geraniums need to be brought indoors for the winter. Geraniums need little care to thrive. They are pest- and disease-resistant. Geraniums make a dramatic statement when adorning window boxes.
Zonal geraniums have distinct color patterns on their leaves. Tricolored leaves, silver leaves, leaves with bands of red or white are accompanied with single or double petal flower clusters. Blossom colors range from deep burgundy to red to pink to salmon to white. Some zonal geranium varieties to try include Alba, Multi-bloom, Cameo, Maverick, Star, Lollipop, Gypsy, Melody, Melody Red, Lotus, Mrs. Henry Cox, Appleblossom Rosebud, Bravo, Freckles, Geronimo, Hollywood Star, Kardino, Orange Appeal, Picasso, Red Hots, Samba, Schoene Helena, Tango and Yours Truly.
Trailing geraniums produce long branches of ornamental leaves with a trailing habit. The leaves resemble ivy foliage. Blossom colors range from lilac to pink to red. Trailing geraniums produce smaller flowers, but there are more clusters than other geraniums. Varieties to look for are Summer Showers, Balcon, Amethyst, Beauty of Eastbourne, Bernardo, Breakaway, Butterfly, Cornell, Eleonor, Harvard, Rigi, Roulette, Saint Malo, Salmon Queen, Snow Queen, Solo, Summer Showers, Sybil Holmes, Tavira, Vinco and Yale.
Scented geraniums grow a few inches to several feet tall depending on the type of geranium. These geraniums are pinched back to control their size. Scented geraniums are prized for the scents of the leaves when bruised. Most scented geraniums have exotic leaf shapes. Scents include lemon, rose, peppermint, nutmeg and citronella. Scented geranium flowers are small. Some scented geraniums to try are apple, apricot, attar of roses, chocolate peppermint, cinnamon, Clorinda, coconut, Dr. Livingstone, Fair Ellen, Ginger, Lemon Balm, Lemon Crispum, lime, mint rose, nutmeg, orange, peppermint and strawberry.