Giant Sunflower Care, Propagation, Watering & Growing Tips
Giant sunflower is a type of sunflower plant that is giant in shape and can grow to a height of over 13 feet with leaves about 1-7 inches wide with bright yellow flower heads. This plant is most commonly planted in valleys with wet meadows or swamps or can even be found near river banks.
Common Name |
Giant Sunflower or Tall Sunflower
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Plant Type
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Perennials
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Taxonomy
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Scientific name
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Helianthus giganteus
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Genus
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Helianthus
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Family
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Asteraceae
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Order
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Asterales
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Class
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Dicotyledons
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Giant Sunflower Water Needs |
Water requirements and watering times for Giant Sunflower.
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Water Needs
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Average
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Cups
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Generally, Giant Sunflower needs water once every
8 days in 1.8
cups.
1 Cup = 250 ml, so at least Giant Sunflower needs about 0.45 L per 8 days. |
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Giant Sunflower Temperature, Humidity, and Light |
Ideal light, temperature & humidity needed for Giant Sunflower to thrive. |
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Light Requirements |
± 6 hours
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Temperature |
70°F
to 78°F
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Humidity Preference |
Medium
The ideal humidity range for your Giant Sunflower to thrive is between 40% and 60%. |
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Giant Sunflower Soil Types and Growing Media |
Information about soil and suitable planting media for Giant Sunflower. |
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Suitability in pots |
7L
Giant Sunflower plants require different pot sizes as they grow. Start with a small pot of 7L. |
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Soil type |
clay
loam
sand
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Soil Drainage
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Moist but well-drainage
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Soil PH |
acid
neutral
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Giant Sunflower Characteristics |
All you need to know about the characteristics of the Giant Sunflower plant. |
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Maximum Height |
156 Inches or
4 meters
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Spread |
120 Inches or
4 meters
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Color |
Green
Bright Yellow
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Characteristics |
Cut Flowers
Showy
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Is Giant Sunflower toxic to pets? |
No
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Garden Style |
City and Courtyard
Coastal Garden
Prairie and Meadow
Patio And Containers
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Giant Sunflower Grow and Care |
Find out information on how to propagate Giant Sunflower, when it flowers, and how to care for it. |
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Maintenance |
easy
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Propagation Methods |
seed
stem cutting
root division
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Flowering season |
autumn
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Giant Sunflower Native Region |
Find out where the Giant Sunflower plant originated. |
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Country |
North America
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