Helianthus pauciflorus
TAXONOMY
FamilyAsteraceae
GenusHelianthus
Zone3
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Helianthus pauciflorus, commonly known as the Stiff Sunflower, is a perennial plant in the Asteraceae family. It is native to North America and typically found in prairies and open woodlands. The plant is known for its bright yellow flowers and stiff, upright stems. It undergoes a dormancy period during the winter months.
ALSO KNOWN AS
Stiff Sunflower
Helianthus pauciflorus var. pauciflorus
Helianthus rigidus subsp. rigidus
Helianthus rigidus var. rigidus
OVERVIEW
VPDCalculate
WaterMoist
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Helianthus pauciflorus thrives in temperate climates with moderate temperatures. It requires direct bright light for optimal growth and should be watered when the soil partially dries out. The plant prefers moderate humidity levels and should be protected from extreme cold.Soil
The Stiff Sunflower prefers well-draining loam soil. It can tolerate a range of soil types but performs best in nutrient-rich, slightly acidic to neutral soil. Good drainage is essential to prevent root rot.Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 is suitable for Helianthus pauciflorus. Fertilize the plant during the growing season to promote healthy growth and flowering.Repotting
Repotting is generally not necessary for outdoor plants, but if grown in containers, repot every 2-3 years to refresh the soil and provide more space for root growth. Repot in early spring before the growing season begins.Propagation
Helianthus pauciflorus can be propagated by division or from seeds. Division is best done in early spring or fall, while seeds can be sown in spring. Ensure the soil is moist and warm for successful germination.Pruning
Pruning is beneficial for maintaining the plant's shape and encouraging more blooms. Prune in late winter or early spring before new growth starts. Remove any dead or damaged stems and cut back to promote bushier growth.Toxicity
Helianthus pauciflorus is not toxic to pets or humans. It is safe to grow in gardens where pets and children are present.Additional
To encourage a longer blooming period, deadhead spent flowers regularly. This will also help prevent the plant from self-seeding excessively. Mulching around the base can help retain soil moisture and suppress weeds.REVOLUTIONIZE YOUR PLANT CARE
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