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Botanical Name: Lamium purpureum

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Habitat: Widespread in lawns and disturbed areas.

Purple Deadnettle’s flowers boast a soft, lilac to deep purple hue amidst triangular, green leaves. Its delicate blossoms form dense whorls around the square stems.

2. Henbit

Botanical Name: Lamium amplexicaule

Habitat: Common in gardens and along roadsides.

Henbit displays vibrant, tubular purple flowers that emerge in clusters, encircling its stem. The petals, slightly darker at the edges, create an eye-catching ombré effect.

3. Red Clover

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Botanical Name: Trifolium pratense

Habitat: Lawns, fields, and meadows.

Red Clover can also exhibit a purplish hue. Its spherical flower heads have numerous tiny, purple-tinged florets that sit atop medium-green, trifoliate leaves.

30 Weeds with Blue Flowers

4. Wild Violet

Botanical Name: Viola spp

Habitat: Shady, moist areas in lawns and woodlands.

Wild Violet has deep purple, heart-like petals with delicate white accents. Growing low to the ground, these flowers create a lush carpet of color in early spring.

5. Self-Heal

Botanical Name: Prunella vulgaris

Habitat: Lawns, meadows, and open woodlands.

Self-Heal’s purple flowers are compact and grouped in dense, spike-like clusters. The blooms range from light lavender to deep violet, contrasting beautifully with green leaves.

6. Canadian Thistle

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Botanical Name: Cirsium arvense

Habitat: Disturbed areas, fields, and roadsides.

This weed’s beauty lies in its small lavender-purple flowers, which form clustered heads atop spiny stems. The flowers’ delicate appearance belies the plant’s invasive nature.

Check out Weeds that Look like Tomato Plants here

7. Ironweed

Botanical Name: Vernonia spp.

Habitat: Prairies, meadows, and open areas.

Ironweed boasts tall, slender stems with bright, deep purple, tuft-like flower clusters. Each tiny, fluffy flower contributes to a larger, visually striking display.

8. American Germander

Botanical Name: Teucrium canadense

Habitat: Commonly found in moist areas, along streams, and in wet meadows.

American Germander features small lavender to rosy-purple flowers. Coming in spikes, these blossoms contrast with the plant’s toothed, lanceolate leaves.

9. Knapweed

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Botanical Name: Centaurea spp.

Habitat: Often found in dry fields, roadsides, and disturbed areas.

Knapweed’s beauty is in its thistle-like, purple flowers, with fringed petals creating a starburst effect. The blooms match perfectly with its gray-green leaves.

Check Native Weeds with Thistles here

10. Spotted Knapweed

Botanical Name: Centaurea stoebe

Habitat: Thrives in open, often sandy or rocky soils, and is commonly found in fields and along roadsides.

This variant of Knapweed has distinct, vibrant purple flowers with dark, spotted bracts at the base, creating a striking visual.

11. Purple Loosestrife

Botanical Name: Lythrum salicaria

Habitat: Predominantly grows in wetlands, along streams, and in marshy areas.

Each spike of this weed has small, star-like purple blooms, offering a lush, vibrant display against its lance leaves.

12. Field Scabious

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Botanical Name: Knautia arvensis

Habitat: Common in grasslands, meadows, and sometimes in open woodlands.

Field Scabious presents pale lavender to deep purple, pincushion-like flowers atop long, slender stems. The frilly petals and soft, gray-green foliage make it a must-have in yards!

Check Beautiful Weeds with Pink Flowers here

Conclusion

While people often remove these Purple Flower Weeds in Grass, they can be valuable for their ecological benefits, such as attracting pollinators and improving soil health.

However, it’s important to note that some, like Purple Loosestrife, are invasive and can negatively impact native ecosystems. Gardeners should consider these aspects when deciding to cultivate or remove these plants.