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Common Geranium, Garden Geranium, Zonal Geranium
Scientific Name: Pelargonium hortorum L.H. Bailey
Synonym:
Family: Geraniaceae
Common Geranium, Garden Geranium, Zonal Geranium (Pelargonium  hortorum) Recommended Temperature Zone:
sunset: 8,9,12-24
USDA: 9-10 or annual or indoors

Frost Tolerance: Hardy in Phoenix

Heat Tolerance: Better considered as a cool season annual in Phoenix

Sun Exposure: Light shade in summer in Phoenix

Origin: South Africa

Growth Habits: Shrubby perennials generally grown as tender annuals, up to 3 feet tall (45 cm)

Watering Needs: Regular water in Phoenix, needs well drained soil

Propagation: Seeds, cuttings


The Common Geranium is the most widely grown pelargonium. The geranium has clusters of 2-inches wide (5 cm) flowers. Many varieties of flower color from white to red and multicolored are available.

Common Geranium, Garden Geranium, Zonal Geranium (Pelargonium  hortorum)

Cultural Practices:
The geraniums have trouble surviving the summer heat. They need shade in summer, and care should be taken to keep their roots cool by using mulch and making sure that if they are in a pot, the pot stays in the shade. Fall is a good time to plant geraniums in Phoenix, so that they grow slowly until the main blooming time in spring. In colder climates, plant them after the last frost date.
Sow at 70 to 85F (21 to 29C). Plant 8-10 week transplants 1 foot apart (30 cm). Remove the spent flowers to promote new buds.

Blooming Habits:
White, orange, pink, red or purple flowers.

Fruiting Habits:


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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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