Crabgrass pictures can be found in many resources, but are not always helpful. What do you do when the weeds you want to identify are much younger or older than the photo of crabgrass you have available?
It is important to know for sure, if crab grass is the weed you need to get rid of, especially if you find it in your lawn.
Did you know that different growing conditions can cause amazing variations in plants, even those just a few feet apart? The following pictures offer a good cross section of samples to aid in crabgrass identification.
You will also find links at the end of this article that give a detailed description of how this troublesome weed grows. An explanation of how to kill crab grass should also be useful. Now let's look at the crabgrass pictures.
Crab grass seedlings, compared to a quarter for size. At this stage, the seedlings may still be susceptible to some pre-emergent weed killers.
Click here for more info on When to Apply Preemergents.
Or see a Users Guide: PreEmergents for Lawns
|A young crab grass seedling already has a new side branch ready to shoot out.|
|The coin shows it is still a small plant, but this weed is already branching out in the typical crabgrass pattern. When crabgrass has room, it likes to spread.|
|The wide leaves, or blades, and dense growth are typical of crabgrass that has plenty of sun, moisture, and no competition.|
|This larger crab grass weed demonstrates the star shaped pattern often associated with crabgrass. You can be fooled when growing conditions are different than what this sample has encountered. Click here for more info and descriptions.|
|This is one crabgrass plant, though several weeds will often sprout together. Alone or in groups, they form a dense mat that smothers any competing weeds or grass.|
Crabgrass Pictures 2:
A Photo Of Crabgrass As It May Appear In Your Lawn
These pictures of crab grass show what the young seedlings look like when they first appear in your lawn. The manner in which the crabgrass then grows and develops will vary greatly. This photo collection should help you make the determination. Use the accompanying article at the end of this page for more description if you need it.
|The wide blades and darker color make this weed stand out. Lawn grass that has a wide blade will be cut off square from mowing. The wide crabgrass blades will come to a point when they have not been cut.|
|A light, emerald green color is common for new crabgrass seedlings. This color, and the wide blades, help identify the weed in some lawns. This group of crabgrass seedlings is competing with each other and the lawn. They grow tall first, trying to dominate, before they sprawl out in their typical pattern.|
|This crabgrass looks barely different from the lawn grass. From certain angles, it may blend right in with some grasses. Look for wider blades that come to a point. When you see a patch that looks suspicious, use the technique in the next photo.|
|Run your hand across the grass in order to spread the dense growth. If you find this star shaped center hub, you know it's a weed. Lawn grass will not flatten out like this.|
|Crab grass compared to bermuda grass. Crabgrass (on right) sends out runners (stolons), but not as far as bermuda grass. Crabgrass usually has a thicker stem, and wider leaves, but there are many varieties which could be larger than this sample of bermuda grass.|
|Since a bermuda lawn is often mowed shorter than other grasses, crabgrass can get started quickly when bare ground appears, especially in areas that get a lot of activity or suffer the effects of inadequate irrigation.|
|As crab grass matures, it forms a clump or mat. This usually grows faster than the lawn, so it is very noticeable a few days after mowing. It will kill off any grass trying to grow through it, if left untreated. Click here for more info.|
Crabgrass Pictures 3:
As Crabgrass Matures And Goes To Seed
Hopefully, these last photos won't be the key to your crabgrass identification quest. If they are, then you have missed the best time to eliminate this weed. Still, try to prevent any more seeds from forming than necessary, because this is the source of next year's crabgrass problem.
|This plant is mature, and will soon put out seed stalks from each branch and the center of the plant. It keeps growing, even after producing seeds, until it finally dies in cold weather. Kill it now and prevent next year's problems.|
|This mature weed is producing seeds like crazy. The clump is two feet across. Hairy crabgrass can get even wider and taller when not mowed in a lawn.|
|The crabgrass seed head is quite similar to that of bermuda grass, but the stalk is usually taller and thicker. This sample shows a stalk that is 10 inches tall. It can be much taller, but can also be only 1" - 2" if the plant is frequently mowed, or is growing in hostile conditions (e.g. - little moisture or heavily shaded).|
Thank you for visiting the Garden Counselor's Gallery of Crabgrass Pictures.
NEED MORE INFO? Check out the links below to access additional articles with detailed information.
More pictures of crabgrass are provided, plus descriptions and control methods that will help you find and eliminate this pest.
Go to Top of page
Go to What Does Crabgrass Look Like - A detailed explanation to help you understand some of the differences seen in this photo gallery.
Go to Crabgrass Identification to compare with bermuda grass.
Go to How To Kill Crabgrass
Go to PreEmergent User's Guide to learn about preventing lawn weeds and crabgrass.
Go to My Garden Needs: Crabgrass Preventer for selected products that prevent crabgrass and weeds in your lawn and garden.