Smooth horsetail (Equisetum laevigatum) is found throughout most of North America. It grows in moist conditions with sandy or gravelly soils. The cones at the top of the shoot contain its spores. By August, the spores have generally been shed and the cones drop off. Smooth horsetail is a descendant of the ancient plants that make up much of Earth's coal deposits.
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Spring
Bloom Time
30 cm to 1.2 m
Plant Height
30 cm to 90 cm
Spread
Deciduous
Leaf type
Spring
Growth Season
Rapid
Growth Rate
On This Page
Images
Attributes
Distribution
Culture
Care Guide
Images of Smooth horsetail
Attributes of Smooth horsetail
Growth Rate
Smooth horsetail's rapid growth rate surfaces predominantly in spring, when it experiences vigorous vertical shoot elongation. Impressive leaf and stem production align with this growth spurt. Although there's insignificant growth in other seasons, spring remains its primary active period.
Distribution of Smooth horsetail
Distribution Map
Smooth horsetail is naturally established in parts of North America and has been introduced to regions in South America. Its range primarily straddles temperate zones, adapting to a variety of habitats within these major regions. Despite being introduced elsewhere, smooth horsetail tends to thrive in its native ecosystems, where it has evolved over time to suit the local conditions.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Moist prairies, riverbanks, roadsides
Hemisphere Trend Curve
Northern
Sorthern
Culture
Symbolism
Snake charming, Fertility
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Care Guide for Smooth horsetail
Every week
Water
Full sun
Sunlight
Water:
Smooth horsetail, native to moist environments, thrives in conditions resembling wetlands. It requires consistent moisture, needing weekly watering to prevent waterlogging. Beneficially, proximity to water sources aids in maintaining humidity and soil moisture, aligning with its natural habitat preferences.
Fertilize:
For 'smooth horsetail,' use balanced nutrition fertilizers every 4-6 weeks during growth, applying half-strength to prevent overload. Avoid fertilizing in winter. Monitor soil, as 'smooth horsetail' thrives in nutrient-poor conditions. Proper fertilization promotes robust growth, requiring thorough watering post-application to ensure nutrient distribution.
Pruning:
Smooth horsetail has long, slender, jointed stems and thrives with regular pruning. Key techniques involve removing dead stems and thinning crowded areas for air circulation. Prune in early to late spring to promote growth and prevent spread. Clean tools minimize disease risk, ensuring optimal health.
Propagation:
Successful cultivation of smooth horsetail relies on understanding its growth patterns and effective sowing strategies. A moist substrate, mimicking natural habitats, is essential for optimal germination. Maintaining ambient moisture without waterlogging is crucial for healthy rhizome and shoot development.
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