Poa Annua or annual bluegrass is a common grassy weed in the country. The weed has shallow root system and develops a short seed head as the season begins. However, it dies when the temperatures are high, leaving behind gaps in your lawn. Because of the adverse effects on the beauty of your garden, it is crucial to prevent it from invading and spreading on your lawn.
Ways of Preventing Poa Annua
Regular Application of Fertilizer
If the grass on your lawn is thick and plush, weeds cannot become established. A properly maintained lawn leaves no room for weeds or weed seeds to germinate. Therefore, to keep annual bluegrass trapped, you need to feed your grass with fertilizer at least four times a year.
Avoid Over-Watering Your Lawn
The grass weed adapts to different conditions, though it thrives mostly in the damp areas of your lawn. When you water your lawn less frequently and deeply, you prevent the annual bluegrass from growing and spreading.
Set Your Lawn Mower High
The weed grass is short and has shallow roots. When you mow your lawn between heights of between 3 and 4 inches (10.16 cm), you make it impossible for Poa Annua to survive. As a result, you will experience a few problems associated with the weed because of tall grass on your lawn.
Use of a Pre-Emergent
The seeds of the grass weed produced during spring or summer wait for cool temperatures to sprout. The application of a pre-emergent stops the seeds from germinating. It is vital to apply the pre-emergent towards the end of summer to prevent the seeds from sprouting in August or September. Using lawn food after applying the pre-emergent helps your lawn to recover from the heat during summer and to keep it compact and green.