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You don’t need to be an expert to identify the weeds in your garden. Our handy guide will help you to spot weeds and check how they grow and spread. Equipment needed: Wildflower books; Plant identification apps – try our identify a plant tool; MyAdvice can be used by RHS members for plant identification enquiries
- Identifying Grassy Weeds
- Identifying Broadleaf Weeds
- Here Are Some of My Favorite Lawn Care Products
Annual Bluegrass
Poa Annua, also known as Annual Bluegrass can be a real problem in lawns. It’s a winter annual that starts growing in the fall. It grows throughout the winter and then dies once temperatures start to increase. Poa annua will stand out from your existing turfgrass and it can really ruin the look of your lawn. You might be able to spot Poa Annua in your grass by looking for light green spots. Poa annua is usually always a lot lighter than your surrounding turfgrass, although when it dies in the...
Crabgrass
Crabgrass is an annual weed which you may see in the mid to late summer. It certainly sticks out like a sore thumb! You’ll often see it in areas of your lawn that are either stressed out or thin. It has a lime green color, thick blades and looks quite similar to dallisgrass and tall fescue. It starts out very small and grows much larger if allowed to spread. As the plant matures, you should see a fork-like seed head at the end of the plant. You’ll frequently see crabgrass growing along the ed...
Dallisgrass
Dallisgrassis a bunch type grass that clumps together and it’s quite unsightly. It has broad blades that grow outwards. It often grows in a ring and you might see your turfgrass growing in the center where the dallisgrass strangles itself. It looks quite similar to crabgrass although it has different seed heads. It’s out earlier in the season than crabgrass too!
American Burnweed
American burnweed (Erechtites hieraciifolius) is native to the US and Canada although it can be found all over the world growing in a wide variety of conditions. It’s also known by several other names. Some of these are: 1. Fireweed 2. Butterweed 3. Pilewort American burnwweed is a summer annual and a member of the daisy Asteraceae family. American burnweed grows tall (300cm) and it grows particularly fast. It’s often called fireweed because it’s found in disturbed areas affected by fire. It...
Black Medic
Black medic(Medicago luplina) is an annual weed that goes by a few other names too. You might hear it referred to as: 1. Yellow trefoil 2. Black clover 3. blackweed Black medic is a member of the legume family. It looks very similar to white clover and oxalis. Like clover, it also has three leaflets although it differs from clover in that it’s center leaf sits up on a petiole. Another feature of black medic is a small yellow flower. Black medic can be a summer or winter annual.
Carpetweed
Carpetweed (Mollugo verticillate) is a small, summer annual weed often found in lawns across north America. Carpetweed is also called Indian chickweed or the devils grip. It has a light green color with egg shaped leaves that form in whorls. At each node, there are between 3 and 8 leaves. It has branches that lie low to the ground forming a prostrate mat. The branches are so low that running over carpetweed with a mower has no effect. Carpetweed can cover quite a large area when it’s allowed...
Thanks a lot for making it to the end of this post! I hope you found it useful. Here are some lawn care products that I use and that I think you’ll also find helpful. These are affiliate links, so if you do decide to use any of them, I’ll earn a commission. In all honesty, these are some of the basic products that I use and recommend to everyone.
- Poison Sumac (Toxicodendron vernix) Poison sumac is a shrub (some consider it a small tree) that grows in wet areas, often next to cinnamon ferns and cattails.
- Japanese Knotweed (Polygonum cuspidatum) Polygonum cuspidatum goes by several common names, including Japanese knotweed and fleece flower. Several other common names include "bamboo" in them, such as "Mexican bamboo" or "American bamboo."
- Crabgrass (Digitaria) Crabgrass is so called because this grassy weed creeps along close to the ground, like a crab. In addition to mixing with lawn grass, it's often found growing in cracks in your hardscape.
- Dandelions (Leontodon taraxacum) Dandelions are a harbinger of spring. Their bright yellow flowers often poke up through lawns and appear between cracks in driveways and sidewalks.
- 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.
Jun 6, 2022 · First up in our weed identification guide is broadleaf plantain. This broadleaf perennial weed can be identified by its oval leaves growing erect in rosette, or flower-like arrangement. In addition, flower spikes will grow outward from the rosette.
May 16, 2020 · In this article I’ll profile the most common lawn weeds within the four primary groups (perennial and annual grass-like weeds, and perennial and annual broad-leaf weeds). At the end of the article you should be equipped to identify the weeds in your lawn (and effectively treat and remove them).
Jun 3, 2024 · 13 Common Lawn Weeds: Identification With Pictures. The following 13 plants are the most common lawn weeds you’re likely to see in your garden. The list includes some of the most problematic weeds for gardeners. We’ll show you how to identify the weeds using pictures and key features.
