Rudbeckia maxima
TAXONOMY
FamilyAsteraceae
GenusRudbeckia
Zone4
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Rudbeckia maxima, commonly known as the Giant Coneflower, is a perennial plant native to the central United States. It is known for its tall stature and large, daisy-like yellow flowers with prominent dark brown centers. The plant typically goes dormant in the winter months.
ALSO KNOWN AS
Great Coneflower
OVERVIEW
VPDCalculate
WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Rudbeckia maxima thrives in full sun and prefers moderate temperatures. It is relatively low-maintenance, requiring occasional watering, especially during dry periods. The plant can tolerate a range of humidity levels but prefers moderate humidity.Soil
This plant prefers well-draining loamy soil. It can tolerate poor soil conditions but thrives best in moderately fertile soil. Ensure the soil dries out almost completely between waterings to prevent root rot.Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 can be applied in the spring to promote healthy growth. Fertilize sparingly, as over-fertilization can lead to weak stems.Repotting
Rudbeckia maxima can be repotted if necessary, typically in the spring. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Gently loosen the roots before placing the plant in the new pot.Propagation
Propagation is best done by division in the spring or fall. Carefully dig up the plant and separate the root clumps, ensuring each division has a portion of the root system. Replant the divisions immediately.Pruning
Pruning is beneficial for Rudbeckia maxima. Deadhead spent flowers to encourage continuous blooming. Cut back the plant to the ground in late fall or early winter after the foliage has died back.Toxicity
Rudbeckia maxima is not toxic to pets or humans. It is generally considered safe to grow in gardens where pets and children are present.Additional
Rudbeckia maxima is a great addition to pollinator gardens, attracting bees and butterflies. It is also deer-resistant, making it a good choice for areas with high deer populations.REVOLUTIONIZE YOUR PLANT CARE
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