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Pelargonium grandiflorum
Pelargonium grandiflorum
Pelargonium grandiflorum
Pelargonium grandiflorum

Pelargonium grandiflorum

TAXONOMY

FamilyGeraniaceae
GenusPelargonium
Zone9

ABOUT

Pelargonium grandiflorum, commonly known as the Regal Geranium or Martha Washington Geranium, is a member of the Geraniaceae family. Native to South Africa, this plant is known for its large, showy flowers and is often grown as an ornamental plant. It prefers subtropical climates and can be found in both subshrub and shrub forms. The plant undergoes a dormancy period of about 2 months.

ALSO KNOWN AS

Eumorpha Grandiflora
Geraniospermum Variegatum
Geranium Glabrum
Geranium Hepaticifolium
Large-Flowered Geranium
Geraniospermum grandiflorum
Large-flower pelargonium

OVERVIEW

WaterMoist
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy2 Months
pH6.5
Pressure1,013 mbar

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DETAILS

Care Instructions
Pelargonium grandiflorum thrives in bright, direct sunlight and requires moderate temperatures. It prefers a moderate level of humidity and should be watered when the soil partially dries out. Regular pruning is necessary to maintain its shape and encourage blooming.
Soil
This plant prefers well-draining loam soil. Ensure the soil mix allows for good drainage to prevent root rot. A slightly acidic to neutral pH is ideal for optimal growth.
Fertilizer
Use a balanced fertilizer with a nutrient composition of 10-10-10. Fertilize the plant every 4-6 weeks during the growing season to support its nutritional needs.
Repotting
Repot Pelargonium grandiflorum every 1-2 years or when it outgrows its current pot. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Repotting is best done in the spring.
Propagation
Propagate this plant through stem cuttings. Take cuttings in the spring or early summer, allow them to dry for a day, and then plant them in a well-draining soil mix. Keep the soil moist until roots develop.
Pruning
Prune the plant regularly to remove dead or yellowing leaves and spent flowers. This encourages new growth and maintains the plant's shape. Pruning is best done after the blooming period.
Toxicity
Pelargonium grandiflorum is generally non-toxic to pets and humans. However, ingestion of large quantities may cause mild gastrointestinal discomfort.
Additional
To encourage more blooms, deadhead spent flowers regularly. This plant can be grown both indoors and outdoors, making it versatile for various gardening setups.
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