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weeds with seed heads

Weeds with seed heads

Weeds reproduce rapidly when they grow seed heads, and they can become an eyesore quickly as well as rob your garden and lawn of vital nutrients. Seed heads contain mature seeds that typically are spread by wind and insects. Ideally, weeds are removed before the appearance of their flowers that eventually release seeds. If some of them escape removal before they produce seed heads, they can be cut down. When you remove weeds with seed heads, you eliminate one of the biggest sources of weeds on your property.

Cut weed plants to ground level with pruning shears or a lawnmower that has a mower bag. If you use a lawnmower, empty its mower bag into the trash immediately so that you do not inadvertently spread the weed seeds the next time you use the lawnmower.

Cut off weed flowers and seed heads using pruning shears, and dispose of them immediately. Cutting the flowers and seed heads rather than removing entire weed plants is ideal if you find weeds in your vegetable garden and don’t want to disturb your crops by yanking out whole weed plants. If the weeds contain large leaves that cover your plants, clip off all the weeds’ foliage so your crops receive more sunlight.

Weeds with seed heads

Like curly dock, orange jewelweed (or “jewel weed”) can be used as a home remedy for poison ivy.   The taxonomic name of orange jewelweed, Impatiens capensis, classifies it as a wild version of the colorful impatiens flowers sold so widely for shady annual beds.

The Spruce / Evgeniya Vlasova

The Spruce / Evgeniya Vlasova

Once you've identified nuisance plants, you can more readily access information on eradication. In some cases, however, finding out more about the plants in question may persuade you to show more tolerance toward them. There are even some edible weeds. Some are worth your time to remove while others don't cause much harm (and may even have beneficial aspects).

Orange Jewelweed (Impatiens capensis)

The Spruce / Lindsay Talley

Bgfoto / Getty Images

Common ragweed may be an important weed for you to identify, even if you don't care about keeping your yard weed-free for aesthetic reasons. If you're an allergy sufferer, you should be aware that common ragweed is a major source of hay fever.  

Plantain Plants (Plantago major)

Curly dock (also called "curled dock" or "yellow dock") is more than just distinctive, it's also useful: curly dock serves as a home remedy to treat stinging nettle burns–though it can be toxic to consume.   You'll be able to identify curly dock by its greenish blossoms that cluster long thin flower stocks. After the flowers have dried and turned brown, they remain in place, making the plant easy to recognize. The flowers start out a much less distinctive light-greenish or reddish color. Blooming occurs in clusters in the form of multiple, long, skinny flower stalks at the top of the plant.

The Spruce / Adrienne Legault

Weeds with seed heads

  1. The best way to combat seed heads is to mow the lawn often and make sure the mower blades are sharp. We recommend mowing once a week at a height of 3-3 ½ inches and not bagging the clippings.
  2. We do not recommend lowering the mowing height of the mower to help control seed heads. Lowering the mowing height puts additional stress on the lawn and may also cause damage to vital structures of the plant, such as the crown.
  3. Proper fertilization is key. Properly fertilized lawns grow out of the seed stage of the grass life cycle faster. The grass becomes easier to mow and have a much neater lawn.
  4. Make sure the lawn is receiving the proper amount of water each week. The lawn should receive 1-1 ½ inches of water per week. The best time to water is between the hours of 12 am – 6 am. This keeps the turf growing at a good rate to help grow out the seed heads on the turf. We have great tips for a successful watering schedule on our website.

Seed heads can be different in shape and size depending on the grass species. The timing of seed head production in the grass life cycle varies from plant to plant. Some grass species produce seed heads very early in spring, such as Annual Bluegrass and Rough Stalk Bluegrass; while others may produce seed heads later in the season such as annual rye grass. Seed heads are attached to a stalk that stems from the center of the grass plant and resemble miniature wheat plants. How many seed heads are visible on the lawn at any given time depends on the grass varieties and time interval between mowing. Seed head production normally lasts for a period of 2-4 weeks. As mentioned previously, many homeowners commonly mistake seed heads for weeds but no need to worry, they’re just a part of the grass life cycle. If you want more information on weeds, click here for our blog about weeds and ways to control them.

Seed heads are a necessary step in the life cycle of grass and ensures the specie’s survival, therefore stressed areas of the lawn may generate a greater density of seed heads. Dry soil is a tell-tale sign of seed heads. Check the soil moisture in the turf and compare areas with and without seed heads. The drier sections yield more seed heads. Cool shaded areas where the water evaporation rate is much less may have less seed heads. Watering the lawn properly with an adequate amount of water each week is important to the turf’s appearance and health.

This picture shows what Annual Bluegrass seed heads look like.

Ways to manage seed heads in turf:

There is no way of controlling or preventing seed heads from occurring chemically in a lawn because it is part of the natural grass life cycle; however, there are ways to improve the appearance of the lawn while seed heads are growing.

One of the most common lawn care questions we receive each year is about a strange wheat like weed growing in lawns. Good news, it’s not a weed, but rather a seed head! A seed head is a normal part of the grass life cycle that occurs each spring in our area. All grasses produce seed heads at some point throughout the growing season, it’s the plants way to reproduce and ensure survival.

Seed head production requires energy from the grass plant, potentially causing a temporary lightening in color. The turf looks stemmy due to seed stalks, and short-term thinning of the turf stand. All these temporary issues eventually correct themselves as the plants grow and enter the next step in the grass life cycle. The best way to ensure a speedy recovery is by enhancing growth through regular watering and fertilization.

Conclusion

If you see plants that look like wheat in your lawn, no need to worry this is a normal part of the grass life cycle. The timing and amount of seed heads produced depends on grass varieties and environmental conditions. Proper watering and fertilization help improve the appearance of the turf while it’s producing seed heads and promote quicker recovery. If you are in our service area and have any questions about seed heads or your lawn in general, feel free to give us a call at 908-281-7888.