Weed Grass Seed Heads

ILGM

Buy Cannabis Seeds Online

Warm temperatures and abundant precipitation have resulted in rapid turf growth and seedheads are now appearing in lawns. Bermuda seed heads look very similar to some common weeds…make sure you know the difference! 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. Problem Info Seed heads appear in the lawn in the spring. They are tough and hard to mow, and the lawn may appe

Lawns are growing quickly and seedheads are appearing

Warm temperatures and abundant precipitation have resulted in rapid turf growth and seedheads are now appearing in lawns.

Seedheads in a Kentucky bluegrass turf. Photo by Kevin Frank, MSU.

Following cold temperatures throughout most of May, recent warm temperatures and rainfall have lawns exploding in growth. If you’ve fallen behind on mowing, Michigan State University Extension recommends raising your mowing height to avoid leaving massive piles of clippings on the lawn, or consider this a time when you can be justified in picking up clippings to avoid smothering the turf. Another smart reason to raise your mower height is to promote deep roots, avoid grub damage and crowd out weeds.

In addition to surging top-growth, seedheads are also appearing. The common lawn grasses – Kentucky bluegrass, perennial ryegrass and tall fescue – all produce seedheads as do grassy weeds such as annual bluegrass (Poa annua). Seedhead production requires energy from the plant, so it is likely the turf will not only look stemmy due to the seed stalks, but the turfgrass may even lose density.

See also  Autoflower Weed Seeds

Consider a fertilizer application following the seedhead flush to help the turf recover, especially if you haven’t fertilized yet this spring or fertilized back in April. Keep the mower blade sharp to ensure a clean cut and don’t lower the mowing height to try and remove seedheads. Annual bluegrass produces seedheads below the 0.125-inch mowing height on golf course putting greens, so lowering the mowing height is not going to eliminate seedheads from your lawn.

Don’t mistake this for a weed.

A LOT of Bermuda lawns are producing seed heads right now. In fact, it is hard to find a Bermuda lawn that is NOT producing seed heads right now.

Don’t panic. its not a weed! These seed heads look very similar to those produced by common weeds like bluestem, bahia or crabgrass, and many people make the mistake of trying to treat them.

While you don’t need to do any type of treatment, you do need to listen because your lawn is trying to tell you something. When Bermuda produces seed heads, it is a sign of stress. Improper watering, soil compaction, shade, soil temperatures, improper mowing etc. these are all things that could be putting stress on your Bermuda and causing it to seed.

As widespread as Bermuda seeding is right now, it is likely a result of overwatering (too much rain!) and temperature fluctuations. In other words, there is nothing you can do about it. Just keep mowing it every week and it will eventually correct itself. If it doesn’t correct itself as we start to dry out, then it might be time to take a closer look to see if there is a deeper issue.

See also  Weed Seeds Nj

Seed heads in your Lawn Commonly Mistaken for Weeds

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.

Problem Info Seed heads appear in the lawn in the spring. They are tough and hard to mow, and the lawn may appear white after mowing because of the shredded stems. Lawn grass naturally goes to seed. Seed heads are most likely to be perennial ryegrass, Kentucky bluegrass, or tall fescue. In cool-season grass lawns, seed head production is prompted by days in excess of 12 hours long, which occurs around the middle of May. Warm-season grasses may also produce seed heads, but do so in the summer, and their seed heads are not difficult to mow.

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.

Analysis Lawn grass naturally goes to seed. In cool-season grass lawns, seed head production is prompted by days in excess of 12 hours long, which occurs around the middle of May. Seed head production is heaviest when daytime temperatures are between 65° and 75°F, the weather is dry and the soil low in nitrogen. Some grass varieties produce more seed heads than others. Seed heads are most likely to be perennial ryegrass, Kentucky bluegrass, or tall fescue. Rough bluegrass and annual bluegrass, two common lawn weeds, produce seed heads in the spring. Warm-season grasses may also produce seed heads, but do so in the summer, and their seed heads are not difficult to mow. Unless they are allowed to ripen for about 4 months, seeds will not sprout, either in the lawn or in a mulch or compost made from clippings. Seed head production weakens grass by diverting energy to making seed.

See also  Landrace Cannabis Seeds

Solution Advice If grass is taller than usual, mow it at regular intervals, slowly lowering the mowing height until it is about 3 inches high. Do not mow lower in an attempt to halt seed head production, but you may mow more frequently to maintain the appearance of the lawn. Use a sharp mower to avoid shredding the stems. Reduce seed head production next year by fertilizing and watering regularly from early May through June. Nitrogen fertilizer and ample water encourage vegetative growth instead of seed head production.

How useful was this post?

Click on a star to rate it!

Average rating 4 / 5. Vote count: 1

No votes so far! Be the first to rate this post.