Weeds with purple flowers - 2. Puncturevine. Weeds With Burrs – Puncturevine. Puncturevine, known as goathead, caltrop, or devil’s thorn, is an annual broadleaf weed that spreads through its creeping stems, establishing roots at the nodes. Its growth pattern lends it a low profile, with opposite leaves divided into pairs of leaflets.

 
Vinegar is a natural, cost-effective way to get rid of weeds in your garden or lawn. It’s an easy and safe alternative to chemical weed killers, and it’s just as effective. Here’s .... Mobile grooming for dogs

Identifying Purple Flower Weeds. Among the many purple-flowered weeds, the most common ones are wild violet, henbit, creeping charlie, and purple deadnettle. These weeds are notorious for invading lawns and gardens and can be challenging to control. Wild violet has heart-shaped leaves and produces small, …The best way to control lawn weeds with a creeping habit is to mow the lawn regularly. The ideal mowing height for warm-season grasses is 2” to 2.5” (5 to 6 cm) tall. Cool-season grasses thrive when mowed at 3” to 4” (7.5 – 10 cm) high. Longer grass blocks out light at the soil level, preventing weeds from taking root.Identify common weeds. Weeds are wild plants in the wrong place. They may have benefits for wildlife in your garden, but if you want to get rid of them, check first how they grow and spread. Dandelions lead a double life, being both a …In addition, some weedy plants with white flowers like chickweed or purple-flowering weeds like chicory have edible parts. How to Identify …Purple Deadnettle (Lamium purpureum) Purple deadnettle, scientifically known as Lamium …Feb 16, 2024 · Explore the unexpected beauty of nature with our guide to over 20 weeds featuring stunning purple flowers. From the medicinal Blue Vervain to the striking Chicory, discover the diverse and vibrant world of purple-flowered weeds that add color and intrigue to landscapes and gardens alike. Purple flowering weeds, often seen as uninvited guests in ... Henbit (Lamium amplexicaule) Is Henbit Edible? 4. Ground Ivy – Creeping Charlie (Glechoma hederacea) 5. Creeping Thistle (Cirsium arvense) …Creeping Charlie (Glechoma hederacea) A perennial weed with round, scalloped leaves and small purple flowers. It's known for its aggressive growth in lawns and gardens. Canada Thistle (Cirsium ...Nov 22, 2023 · Plant Zone: 5-9. Lavender is hard to miss in a garden. It’s one of the most famous purple flowers, but there are many different types of lavender, with nearly 50 varieties of related flowers. They have a distinctive sweet smell, and some varieties are used for creating perfume and aromatherapy oils. Thistles are notorious for their sharp spines and often have vibrant purple flowers. These weeds can quickly take over your garden if left unchecked. Plant Type: Annual to Biennial Weed: Plant Size: 1-2 feet (0.3-0.6 meters) Flower Color: Pink to Purple: Leaf Shape: Prickly, Oblong to Lance Shaped: Leaf Color: …They can be either blue, purple, white, or yellow. Several varieties that produce blue to purple flowers are: Sisyrinchium bermudiana. Sisyrinchium bellum. Sisyrinchium angustifolium. Sisyrinchium demissum. These plants are frequently found growing on grasslands. Some species grow as perennials, and some are annuals.Flowers are a violet-purple color. How to Kill Ground Ivy. Your best bet to control ground ivy is in the early spring with the weed killer Southern Ag Lawn Weed Killer with Trimec. It’s safe for St. Augustine, centipede, bermuda, zoysia and tall fescue lawns. ... Old World Diamond Flower is a summer weed with smooth, oblong-pointed leaves ...Identifying Creeping Charlie Weed. Creeping charlie (Glechoma hederacea) is often called ground ivy due to its appearance and growth habits. Creeping charlie weed is a green vine whose leaves are round with scalloped edges. Creeping charlie has a small purple flower. The creeping charlie plant …Flowers are: blue to purple with a darker coloured throat in the morning then fading to pink in the afternoon. funnel shaped with 5 fused petals. 5.5–7.5 cm long and 6.5–8.0 cm wide. in clusters of 3–12 on stalks up to 20 cm long. open for only one day. mainly present from spring to autumn.Columbine aquilegia is a herbaceous perennial plant that can grow to be about 30 cm tall. The leaves are alternate, simple, and deeply lobed with each lobe having serrated edges. The flowers are bisexual and actinomorphic with five petals. They are usually red, purple, or blue in color and have yellow stamens."A revolutionary story of guitars, motorcycles, cell phones—and the music of a new generation.” Prince’s semi-autobiographical rock opera, Purple Rain, is getting a West African re...Whether you want pink or silver or jet black hair, the BrainStuff team explains how hair dye works to give you your color of choice in this video. Advertisement Whether you're read...Many weed killers contain dangerous chemicals that are harmful if swallowed. This article discusses poisoning by swallowing weed killers containing a chemical called glyphosate. Ma...Jul 12, 2023 · Leaves are about 1.5 – 2.5 cm long. Have clusters of white or pinkish-white small flowers. Have hairy stems. White Clovers are vigorous weeds that grow rapidly in lawns, gardens, meadows, and grasslands. These weeds are common in Texas and you will spot them in areas that have moist soil. 1. Choose native or non-invasive plants when planting your garden. 2. Use this tool to identify weeds in your yard and plan to remove and replace with native alternatives. 3. Consider volunteering with your local catchment or Habitat Brisbane group to help control weeds in your local area.Here are some ways to identify common weeds that may be growing in your yard: 1. Purple Dead Nettle. 8H/Shutterstock. The Purple Dead Nettle is a member of the …Jan 8, 2023 · Chickweed. This fast spreading annual broadleaf weed takes its name from its popularity with chickens. It’s an edible herb, and some people use the leaves and flowers in salads. You’re likely to first notice this type of weed growing in the winter. And by early spring it produces small white flowers with five cleft petals. Common Violet - This weed with purple flowers is most frequently found growing in shady lawns. Spreading quickly, common violets grow to form …Purple deadnettle, also known as Lamium purpureum, is an invasive annual weed that is found in lawns and gardens throughout Texas. It has small purple flowers that bloom from early spring to early summer and produces seeds that germinate in the fall or spring. Purple deadnettle is edible and is rich in nutrients.Jimson Weed ( Datura stramonium) Nettle ( Urtica dioica) Mouse-ear Chickweed ( Cerastium) Quickweed ( Galinsoga parviflora) Wild Carrot ( Daucus carota) #1. Dandelions (Traxacum) As you are probably aware, Dandelions start off yellow, but their flower turns into a white ball after a few days.Identifying Creeping Charlie Weed. Creeping charlie (Glechoma hederacea) is often called ground ivy due to its appearance and growth habits. Creeping charlie weed is a green vine whose leaves are round with scalloped edges. Creeping charlie has a small purple flower. The creeping charlie plant …Dec 9, 2016 · Several of them have to begun to flower early this spring in this geography, Hager says. The two most responsible for purple patches in fields are henbit and purple deadnettle. Both grow close to the ground, and can produce thick patches of cover. Purple deadnettle is more likely found in southern counties. The early flowering may be a result ... Plant Size: 15 to 40 feet. Sun Exposure: Full sun. Plant Zone: 9-11. The Bougainvillea vine produces vibrant colors including orange, red, and of course, purple. The true flowers of the Bougainvillea are small and white, but their surrounding bracts (large modified leaves) provide the stunning color.1. Creeping Charlie. 2. Purple Dead Nettle. 3. Forget-Me-Nots. 4. Sweet Violet. 5. Spear Thistle. 6. Violet Woodsorrel. 7. Heal-all Plant. 8. Spotted …Thistle was once a revered plant and flower. Nowadays, it's considered an invasive weed. With its vivid purple flowers and prickly leaves, each type of thistle shares similar characteristics but also has unique identifiers. If not kept under control, thistle will quickly take over a landscape.The key is to keep the weeds' seeds from spreading. For those new to composting, figuring out what goes in and what to leave out can be daunting. And if you’re composting, chances ...Weeds are a common problem in gardens and lawns. They can take over quickly, stealing water and nutrients from the plants you want to grow. Fortunately, there is an easy and natura...The fruit of devil's claw (purple flower) are bulbous capsules containing numerous seeds, armed with a long, curved beak which splits as the fruit matures to form two hard curved claws. Fruit is 8 to 30cm long, brown or black and with a roughened, pitted surface. The claws are longer than the body of the capsule.The best way to control lawn weeds with a creeping habit is to mow the lawn regularly. The ideal mowing height for warm-season grasses is 2” to 2.5” (5 to 6 cm) tall. Cool-season grasses thrive when mowed at 3” to 4” (7.5 – 10 cm) high. Longer grass blocks out light at the soil level, preventing weeds from taking root.Purple deadnettle, also known as Lamium purpureum, is an invasive annual weed that is found in lawns and gardens throughout Texas. It has small purple flowers that bloom from early spring to early summer and produces seeds that germinate in the fall or spring. Purple deadnettle is edible and is rich in nutrients.Oct 9, 2023 · 2. Purple Dead Nettle. Botanical Name: Lamium purpureum. Purple Dead Nettle or Red Dead Nettle is another common weed with purple flowers. The flowers and leaves are edible with a sweet flavor and medicinal benefits. 3. Forget-Me-Nots. shutterstock/Kristine Rad. Botanical Name: Myosotis sylvatica. Weeds are pesky and can quickly take over your garden or lawn. If you’re looking for an effective and natural way to get rid of them, then a DIY natural weed killer is the perfect ...Characteristics. Pickerel weed grows in shallow water no more than a foot deep. Shiny green, lance-shaped leaves emerge in the spring from below the water and eventually grow to 3-5 feet above the surface. Purple-blue flower spikes can be seen several weeks after the appearance of foliage. Although uncommon, …20 Common Invasive Weeds With Purple Flowers 1. Canada Thistle Source: nwcb.wa.gov. Scientific name: Cirsium arvense (L.) Scop. Canada thistle is a prolific and aggressive invasive weed with a purple flower native to Europe that got introduced to North America in the 1600s.. This plant heavily produces seeds and can also spread by roots.Weeds with purple lawn weeds tend to have small lilac, lavender, or pale purple flowers. Other identification features are their leaf shape, margins on the leaves, and plant height. …Most of the purple-flowered weeds that sprout on lawns belong to the mint family. Common lawn weeds with purple flowers include Henbit, Ground Ivy, Purple Deadnettle, Wild Violet, Forget-Me-Not, Creeping Thistle, and Common Thistle. Also, this blog article doesn’t imply that the weeds listed here only develop purple blooms, as the … Common St. John’s wort ( Hypericum perforatum) This yellow-flowered weed is native across temperate Europe and Asia, but has naturalized and become invasive throughout the Americas. St. John’s wort has been used medicinally for centuries for the treatment of wounds, and is currently popular as an herbal antidepressant. The fruit of devil's claw (purple flower) are bulbous capsules containing numerous seeds, armed with a long, curved beak which splits as the fruit matures to form two hard curved claws. Fruit is 8 to 30cm long, brown or black and with a roughened, pitted surface. The claws are longer than the body of the capsule.In actuality, humans consume the flowers of several plants as vegetables, including broccoli. The head of broccoli is actually the plant’s buds. Left intact with the roots, these b...Weeds can be a major nuisance in your lawn, and they can be difficult to get rid of. If you’re looking for a way to get rid of weeds in your yard, using a lawn weed killer is a gre...Purple deadnettle ( Lamium purpureum) is a common winter annual weed found in North Carolina waste areas. It is similar to henbit in appearance but its upper leaves have short petioles and the lower leaves have long petioles, whereas henbit lacks petioles. Purple deadnettle also has upper leaves that are distinctly red- or …Red Clover thrives in wet to dry conditions and on well-drained loam soil. It has dark green leaves with three leaflets with a crescent shaped mark on each leaflet. This weed has large, hairy stalk that is attached to the stem. Typically this weed has a pinkish red flower and is round in shape. The Red Clover is distinguishable from …http://www.vistaturf.com - Get a FREE NO HASSLE LAWN CARE ESTIMATE emailed fast... or call 469-333-TURF –Do you have purple flowers overtaking your lawn? The...Thistle was once a revered plant and flower. Nowadays, it's considered an invasive weed. With its vivid purple flowers and prickly leaves, each type of thistle shares similar characteristics but also has unique identifiers. If not kept under control, thistle will quickly take over a landscape.There are many purple-flowered varieties worth growing, including ‘Cardonna’ and ‘Amethyst’. Another personal favorite salvia is S. sylvestris ‘May Night’. Most varieties are hardy to -30 degrees F. The slender bloom spikes …1. Creeping Charlie. 2. Purple Dead Nettle. 3. Forget-Me-Nots. 4. Sweet Violet. 5. Spear Thistle. 6. Violet Woodsorrel. 7. Heal-all Plant. 8. Spotted …Trees and shrubs (woody plants) Weeds that are trees or shrubs overtop or replace other plants and alter the composition of native plant communities, often preventing native plant regeneration. Common trees considered weeds include: wattles, willows, tree privet and wilding pines. Common weeds that are shrubs include: barberry, gorse, heather ...Weeds with Purple Flowers. Many different kinds of weeds with purple flowers may show up in your garden. Many of the weeds with purple flowers have similar characteristics. There are several physical differences in their purple flowers, leaves, and growing patterns. These details can help you differentiate one type of weed from the other. This list should help you more easily ID the purple weeds in your lawn and garden and learn how to get rid of them as safely and efficiently as possible. 1. Creeping Charlie. Creeping Charlie, or ground ivy, is a low-growing perennial with round, scalloped leaves and small, purple flowers. Purple Violet. It's no wonder that purple violets are so pretty: they're relatives of pansies …Henbit flowers are narrower and don’t have fringed lower lips. Purple Dead Nettle (Lamium purpureum) differs from Self Heal in a few key ways: Purple Dead Nettle leaves transition from green to purple-red or pinkish near the top of the stem. Purple Dead Nettle has fuzzy leaves, while Self Heal’s are smooth or sparsely haired.Nov 22, 2023 · This weed’s purple flowers emerge from this plant in the late spring or early summer. The flowers have a sweet smell, encouraging insects to pollinate the 1,000 – 1,500 seeds it has on each flowering shoot. Henbit can be confused with purple deadnettle. The leaves of purple deadnettle, however, are more pointed at the end and are slightly scalloped. The lower leaves of purple deadnettle are on long petioles, the upper leaves are on short petioles. The flowers of henbit are purple, tubular shaped and form in the whorls of the upper leaves.Red Clover thrives in wet to dry conditions and on well-drained loam soil. It has dark green leaves with three leaflets with a crescent shaped mark on each leaflet. This weed has large, hairy stalk that is attached to the stem. Typically this weed has a pinkish red flower and is round in shape. The Red Clover is distinguishable from …The key is to keep the weeds' seeds from spreading. For those new to composting, figuring out what goes in and what to leave out can be daunting. And if you’re composting, chances ...What Are Purple Flower Weeds? The most common purple flower weeds are the henbit, wild violets, creeping charlie, forget-me-nots, purple dead nettle, black nightshade, creeping thistle, musk thistle and bull thistle. While there are many types, these purple weeds can be hardy and aggressive, growing in your lawn and taking over your …http://www.vistaturf.com - Get a FREE NO HASSLE LAWN CARE ESTIMATE emailed fast... or call 469-333-TURF –Do you have purple flowers overtaking your lawn? The...1. Ground Ivy / Creeping Charlie (Glechoma hederacea) 2. Creeping Thistle / Canada Thistle (Cirsium arvense) 3. Musk Thistle (Carduus nutans) 4. …8 Mar 2012 ... I believe the weed you are seeing is called Henbit . http://www.ppws.vt.edu/scott/weed_id/lamam.htm Which Image product did you use, as they ...They can be either blue, purple, white, or yellow. Several varieties that produce blue to purple flowers are: Sisyrinchium bermudiana. Sisyrinchium bellum. Sisyrinchium angustifolium. Sisyrinchium demissum. These plants are frequently found growing on grasslands. Some species grow as perennials, and some are annuals.Weeding your garden protects vegetables from intrusive plants that steal water and nutrients from your crop. Learn all about weeding a vegetable garden. Advertisement Cultivating, ...Weeds are a common problem in gardens and lawns. They can take over your garden and make it look untidy. Fortunately, there are some easy ways to make an effective weed killer at h...These hardy ground cover plants have delicate grapeleaf-shaped foliage and abundant summer flowers in colors including blue, purple, white, and pink. The best purple cultivars include 'Orion', 'Raven', 'Rozanne', and 'Johnson's Blue'. Trim the first round of spent flowers to encourage new growth.Dark leaves are met with three smooth leaves and a singular pink and purple flower. These lawn weeds grow in under-fertilized, poor, soil. Control Methods – Hand pulling and weeding tools can be utilized to catch an early onslaught of Japanese Clover in your lawn. It can be difficult to pull, so I recommend waiting until the soil is moist.21 Apr 2014 ... This is purple (blue) mustard (Chorispora tenella) and it's an early flowering winter annual that some people think is a wildflower. Yes, it's ...Leaves: Opposite or whorled, 1.5-4 inches long with smooth margins, lacking petioles. Lower leaves have downy hairs and clasp the stem. Stem: Stiff, 4-sided, woody at the base. Flower: July to early September. Long spikes of rose or purple flowers, each with 4-7 wrinkled petals. Similar plants: Flowers of native …Is there space in the legalized weed economy for corporate cannabis and boutique bud? Like plenty of teenagers, Mario Sherbinski started smoking weed when he was 16. Unlike a lot o...Weeds with purple lawn weeds tend to have small lilac, lavender, or pale purple flowers. Other identification features are their leaf shape, margins on the leaves, and plant height. …Dandelion. This ubiquitous weed features a rosette of jagged leaves and bright yellow flowers. Each part of the dandelion is edible, with a slightly bitter, earthy taste. Nutritional Content: Rich in vitamins A, C, K, and E, minerals like iron, calcium, magnesium, and potassium. Dandelions.Oct 26, 2023 · The purple-flowering noxious weedy plant has invasive horizontal and vertical roots that create an extensive system. Also named creeping thistle, the flowering weed has pinkish-purple flowers and sparse leaves on wiry green stems. This weed with purple flowers grows up to 5 ft. (1.5 m) tall. Most of the purple-flowered weeds that sprout on lawns belong to the mint family. Common lawn weeds with purple flowers include Henbit, Ground Ivy, Purple Deadnettle, Wild Violet, Forget-Me-Not, Creeping Thistle, and Common Thistle. Also, this blog article doesn’t imply that the weeds listed here only develop purple blooms, as the …There are two thistles you may find in your lawn; Dwarf Thistle with a reddy purple flower, no stem and is squat; and the more common Creeping Thistle which has ...Mar 22, 2023 · A native plant with purple flowers that can become a lawn weed is selfheal (‌ Prunella vulgaris ‌, zones 4 to 9), which produces flowers on distinctive terminal spikes that are about 2 inches in length. Selfheal, also called heal all, can become weedy in damp, moist conditions. It is often found in fields and roadsides all over the U.S. 8 Mar 2012 ... I believe the weed you are seeing is called Henbit . http://www.ppws.vt.edu/scott/weed_id/lamam.htm Which Image product did you use, as they ... Henbit: Eliminating these pesky weeds before they flower in spring can take the stress out of henbit weed management in your lawn all summer long. Green Bee can kick start your weed-free summer today. What to look for: Hairy upper surfaces on leaves that develop pink to purple flowers. Structure: Grows erect, up to 16″ tall. 2 Mar 2022 ... 51 Purple flowering plant type and varieties with names and Identification Please Follow me on Instagram: ...Jul 10, 2023 · This weed with purple flowers is known for its large, spiny leaves and distinctive purple flowers. Bull thistle is a robust plant reaching 3 to 6 feet (0.9 to 1.8 meters). It thrives in full sun and can tolerate various soil conditions, including dry and poor soils. Flowers are: blue to purple with a darker coloured throat in the morning then fading to pink in the afternoon. funnel shaped with 5 fused petals. 5.5–7.5 cm long and 6.5–8.0 cm wide. in clusters of 3–12 on stalks up to 20 cm long. open for only one day. mainly present from spring to autumn.Bugleweed (Ajuga reptans) is a fast-growing herbaceous perennial ground cover (the species name reptans means creeping) that does a good job of choking out weeds.It produces shiny, dark green leaves and beautiful flower spikes, producing blue, violet, or purple flowers in mid- to late-spring that can reach eight to ten inches tall, …Purple deadnettle, also known as Lamium purpureum, is an invasive annual weed that is found in lawns and gardens throughout Texas. It has small purple flowers that bloom from early spring to early summer and produces seeds that germinate in the fall or spring. Purple deadnettle is edible and is rich in nutrients.01. Canada Thistle. Canada thistle is a purple-pinkish flower and contains spikes in the flower and leaves too. They look similar to the firecrackers …Henbit (Lamium amplexicaule) Is Henbit Edible? 4. Ground Ivy – Creeping Charlie (Glechoma hederacea) 5. Creeping Thistle (Cirsium arvense) …Very common in UK lawn. Pinkish/Purple flowers 8 – 12 mm (1/2 inch) in diameter with jagged petals. Although found in many soil types, it prefers to grow in free draining soil, dry environment and a soil that is under-nourished. This weed has basal leaves that are round in shape, looking like a rosette, slightly hairy and consist of ...

Jun 18, 2022 · Pokeweed grows up to 10 feet (3 m) in height. Its leaves are large, bright green, and have an elliptical shape. The stems are reddish-purple and develop from a large white taproot. Pokeweed produces green to white flowers which bear green berries that become purple to almost black when ripen. 2. . Beaches in portland maine

weeds with purple flowers

Flowers and leaves of creeping charlie. Source: gmayfield10. Creeping charlie (Glechoma hederacea) is a broadleaf weed also known as ground ivy, gill over the ground, or cat’s foot, among other common names.It is a member of the mint family with creeping stems and kidney-shaped leaves that might occasionally be seen as a garden perennial, …Weeds are pesky and can quickly take over your garden or lawn. If you’re looking for an effective and natural way to get rid of them, then a DIY natural weed killer is the perfect ...Wild violets are one of the most common weeds with purple flowers, while creeping charlie or ground ivy, black nightshade, and Canada thistle are also frequently encountered. Other species such as forget-me-nots, musk thistle, common thistle, bull thistle, and purple dead nettle may also be found in cetain areas.Creeping Charlie (Glechoma hederacea) A perennial weed with round, scalloped leaves and small purple flowers. It's known for its aggressive growth in lawns and gardens. Canada Thistle (Cirsium ...Wild violets (Viola papilionacea, Viola sororia, Viola pubescens, and other species) are a close relative of violas, pansies, and other garden flowers.While some people view this plant as a fine wildflower, others regard it as a stubborn perennial lawn weed.Wild violets can be removed by hand, especially if you regularly inspect your lawn to control …Teasel flower head. The teasel ( Dipsacus fullonum) is a UK native biennial, bearing tall spikes of brush-like flower heads with purple blooms, popular with bees and butterflies. Goldfinches eat the seed in winter. Grow at the back of a border or in a wild part of the garden. Height x Spread: 1.8m x 80cm.Henbit. Wild Violet. Let’s take them one at a time so you can identify the purple flower weed in your lawn or garden, but first a word about eliminating …Clematis. Clematis is another popular climbing vine that produces beautiful, purple flowers. It comes in a variety of shades, from light lavender to deep violet. Clematis requires well-drained soil and plenty of sunlight to thrive. Type of Vine: Clematis is a climbing vine known for its beautiful flowers.Jul 10, 2023 · This weed with purple flowers is known for its large, spiny leaves and distinctive purple flowers. Bull thistle is a robust plant reaching 3 to 6 feet (0.9 to 1.8 meters). It thrives in full sun and can tolerate various soil conditions, including dry and poor soils. Creeping Charlie. Glechoma hederacea. Life Cycle: Perennial. Bloom Time: Early spring. Toxicity: None. Creeping Charlie, or ground ivy, is a low-growing perennial …There are two thistles you may find in your lawn; Dwarf Thistle with a reddy purple flower, no stem and is squat; and the more common Creeping Thistle which has ...Applying Scotts Weed & Feed is a great way to keep your lawn looking lush and healthy. This guide will walk you through the steps of applying this product, so you can get the most ...The white flowers are in an umbel (like an umbrella) shape with many short flower stalks originating from the same point, and the umbel is often flat across the top. Wild carrot is known for often having a single flower in the center of the umbel with purple petals. See more images of wild carrot here. Wild carrot …Creeping speedwell is a mat-forming spreading perennial weed with purple flowers. Although creeping speedwell produces pretty flowers, its fast growth means it can quickly get out of hand in borders and lawns. The four-petalled purple flowers grow on the end of long stems. Creeping speedwell spreads through rhizomes and stolons.21 Apr 2014 ... This is purple (blue) mustard (Chorispora tenella) and it's an early flowering winter annual that some people think is a wildflower. Yes, it's ...20 Common Invasive Weeds With Purple Flowers 1. Canada Thistle Source: nwcb.wa.gov. Scientific name: Cirsium arvense (L.) Scop. Canada thistle is a prolific and aggressive invasive weed with a purple flower native to Europe that got introduced to North America in the 1600s.. This plant heavily produces seeds and can also spread by roots..

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