This wildflower grows erect in a shrub that flowers in summer and fall in South America and the southeastern United States. In non-native regions, slender vervain is occasionally considered invasive, and roots easily in disturbed soils. The bright flowers attract pollinators like butterflies and hoverflies.
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Perennial, Annual, Biennial
Lifespan
Herb
Plant Type
Summer
Bloom Time
2.5 cm to 5 cm
Flower Size
Green
Fruit Color
Purple, Pink
Flower Color
Green
Stem Color
Winter dormancy
Dormancy
Deciduous
Leaf type
20 - 38 ℃
Ideal Temperature
Summer, Fall
Growth Season
Moderate
Growth Rate
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Distribution
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Images of Slender vervain
Distribution of Slender vervain
Distribution Map
Slender vervain has a diverse global presence, predominantly gracing the regions of South America as its native territory. It has been introduced to various continents, lending to its reputation as a cultivated ornamental. In certain areas, slender vervain is sometimes thought to be a garden escape, where it may have an impact on local ecosystems. Although cultivated, in some regions like Oceania and parts of Asia, slender vervain may be viewed as a potential competitor to native species.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Temperate
Hemisphere Trend Curve
Northern
Sorthern
Flowering
Fruiting
Culture
Garden Use
Slender vervain is a popular perennial prized for its dark green leaves and extended blooming period. It is used to add color to an area when other plants are not in bloom, and it is an essential part of a flower garden. Plant it with bluebonnets, Indian paintbrushes, blanket flowers, and coneflowers to add contrasting colors.
Symbolism
Enchantment
Name Story
Slender vervain: Verbena is derived from latin, meaning 'sacred bough' which is in reference to the leafy twigs. This plant features candelabra-like inflorescences that erect in a slender manner, so it is called slender vervain.
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Cultivars
There are several recognized cultivars of Slender vervain, including the following common varieties :
Water:
Slender vervain thrives in tropical settings, needing consistent moisture without waterlogging. It's moderately drought-tolerant, favoring weekly watering. Preferring sunny, well-draining soil, it flourishes outdoors and appreciates rainwater, which supports its growth cycles and attracts pollinators.
Fertilize:
For slender vervain, use balanced fertilizers monthly during the growing season and decrease to every other month in winter. Switch to a high-phosphorus mix during peak blooms. Water thoroughly after feeding to distribute nutrients and prevent root burn for vibrant, robust growth.
Pruning:
Slender vervain features vibrant purple flowers and robust growth, requiring early to late spring pruning. Essential techniques involve trimming dead stems and shaping the plant for fuller growth. Clean tools prevent infections, promoting healthy blooms and longevity, enhancing slender vervain's appeal in gardens.
Propagation:
Slender vervain is a hardy perennial with sturdy stems and vibrant flowers, thriving when propagated from healthy cuttings. Use a rooting hormone and plant in well-draining soil. Maintain consistent moisture and warmth, providing bright, indirect light to promote growth without harming cuttings.
Repotting:
Repot slender vervain in spring every 2-3 years, selecting a larger container with good drainage. Post-repotting, provide moderate water and ample light. Use a well-draining mix to avoid root rot, essential for healthy growth.
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