There are three general categories of geraniums: zonal, ivy-leaf and regal. Most geraniums are available in many colors with the exception of true blue or yellow.
The zonal geranium (Pelargonium x hortorum) is a hybrid between P. inquinans and P. zonale. The zonal geraniums have leaf margins that are often scalloped, zoned or variegated and have a heavy odor when bruised. Zonal geraniums can be grown from cuttings or seed.
The ivy-leafed geranium (Pelargonium peltatum) has a more vine-like growth habit and the leaves often have a more wax-like appearance. Often the flowers are smaller and the leaves are ivy-like.
For more information, see the following Colorado State University Extension fact sheets(s):
- Attracting Butterflies to the garden
- Tobacco (Geranium) Budworm
- Preventing Deer Damage
- Native Herbaceous Perennials for Colorado Landscapes
- Rock garden Plants
- Perennial gardening
- Herbaceous Perennials
For more information, see the following Planttalk Colorado™ script(s).
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Updated Friday, April 19, 2013