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- Stinging Nettle. Botanical Name: Urtica dioica. Height: 1 – 2 metres. Notes: The Stinging Nettle is known by most for the skin irritation it causes upon direct contact.
- Dandelion. Botanical Name: Taraxacum officinale. Height: 10 – 15 cm. Notes: A well-known garden weed with vibrant yellow flowers. You’ll typically find Dandelions in cultivated land and grassy areas.
- Poison Ivy. Botanical Name: Toxicodendron radicans. Height: Up to 2 metres. Notes: Poison Ivy causes skin irritation through direct contact. You can find this plant growing in the forest understory.
- Ground Ivy. Botanical Name: Glechoma hederaceae. Height: 5 – 50 cm. Notes: Ground Ivy grows in woodlands and garden lawns. It has highly distinctive kidney-shaped leaves and violet flowers.
If you need identification help, visit the NatureSpot species galleries or post an image on the NatureSpot forum. Chickweed – Stellaria media ID: Small. Oval, opposite leaves. Line of hairs on stem. White flowers with 5 petals – each divided to the base and 3 styles (inset photo). Similar species: Other chickweeds (unlikely in gardens).
Remove the soil from the roots of several different weeds and carefully wash and dry them. Use gardening books, the internet or get a gardener to help you identify and name the weeds you find. Also make a small sketch of each weed showing the shape of the leaves and the colour of any flowers.
- Asiatic Bittersweet. Scientific name: Celastrus orbiculatus. Asiatic bittersweet is a perennial weed that has small, orange berries. Round yellow fruits and red berries can identify it.
- Bindweed. Scientific name: Convolvulus arvenis. Bindweed is a perennial weed identified by its bright green, hairless stems and arrowhead-shaped leaves with scalloped edges.
- Canada Thistle. Scientific name: Cirsium arvense. Canada Thistle is a perennial weed that spreads by seed. It has its origins in Europe but was introduced to America in the 16th Century, among other agricultural shipments.
- Chickweed. Scientific name: Stellaria media. Chickweed is a low-growing winter weed that can establish in cool weather and cause damage to crops early in the growing season.
- What Are Weeds?
- How to Identify Weeds
- Types of Weed Roots
- How to Get Rid of Weeds
- Types of Weeds (with Picture and Name) – Identification Guide
- Stinging Nettle
- Creeping Buttercup
- Spotted Spurge Weed
- Broad-Leaved Dock
- Creeping Speedwell
Any unwanted plant growing in your yard can be a type of weed. Generally, common weed plants have undesirable qualities like invasiveness, jaggy leaves, or persistence. Weedy plants can also choke out desirable plants by competing for nutrients, light, and space. As a result, weeds make your garden look unkempt and messy. Weeds generally fall into ...
Proper weed identification is the first step to removing them. To identify weeds, look at the type of leaf, flower, and root system. For example, weeds tend to have a thick root, making them difficult to remove, or a creeping fibrous root system that spreads quickly. Weeds spread easily and quickly and take root where you least want them. Weedy gar...
Weeds are categorized by their roots. Typically, knowing the type of roots is key to controlling weeds and preventing them from ruining your hard work. Here are four types of roots that weeds (and garden plants) have: 1. Tap roots—The toughest garden weeds have long tap roots like a thin parsnip. Dandelions are a common weed with deep roots. The ta...
Use an integrated weed management system to get rid of weeds. Natural weed killers include vinegar, salt, borax, or boiling water. To prevent lawn weeds, use a pre-emergent weed killer such as corn gluten that can keep lawn weeds at bay. Also, a layer of mulchin flower beds can prevent weed growth. Related reading: How to get rid of weeds naturally...
Let’s look in detail at identifying the common types of weeds that can cause problems in your garden.
Stinging nettle is a perennial weed with green, tooth-edged ovate leaves and stinging bristles that cause skin irritation. Stinging nettles grow 3 to 10 ft. (1 – 3 m) tall, and the weedy stinging plant spreads through rhizome roots and airborne seeds. Also called the common nettle, the weed’s roots can reach up to 5 ft. (1.5 m) wide and continue to...
Creeping buttercup is a spreading garden weed with yellow flowersthat can also become firmly rooted in lawns. The pesky weed spreads by long runners that form a robust network of stolons. Creeping buttercup commonly grows in damp ground and moist soil. To get rid of creeping buttercup weeds, dig them up and destroy them. If the yellow-flowering wee...
Spotted spurge is a common weed that affects flower beds or lawns. This spreading weed has oval-shaped leaves on hairy reddish stems that form a ground-hugging mat of dark green foliage. The weedy flowering plant produces small pink flowersbefore distributing thousands of seeds. Spotted spurge has a taproot, making complete removal of the invasive ...
Broad-leaved dock is a troublesome weed with broad leaves that have a rounded or pointed apex and cordate base. Also called butter dock or bitter dock, the aggressive weed has long taproots up to 2 ft. (0.6 m) deep. Dock weeds have flowering stems up to 5 ft. (1.5 m) tall. Weed Identification:Broad-leaved dock has distinctive lanceolate or ovate le...
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 flowersgrow on the end of long stems. Creeping speedwell spreads through rhizomes and stolons. The creeping stems r...
A pocket guide to aid the identification of the most widespread and economically important weeds encountered in the horticultural sector. This guide covers mostly broad-leaved weeds but also some grasses, moss and liverwort.
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Purdue Master Gardener Guide to Common Lawn and Garden Weeds. Table of Contents. If you are using this on the computer, just click on the name of the weed. Introduction. A Short Primer on Grass Identification. Grassy weeds Page. 3 Bermudagrass. 3 Crabgrass, large and smooth.
