over-seedingOver-seeding (sowing grass seeds on an established lawn) is one way to ensure your lawn stays dense from one season to the next. Thick grass will crowd out weeds.

In the spring one should check for dying grass and repair it with over-seeding and possibly top dressing. Weed seeds are very opportunistic and will establish themselves wherever bare soil exists. It is not necessary to cover grass seeds with soil unless there are bare areas, then one needs top dressing to be done too.

Over-seeding is done with a broadcast spreader to evenly apply the grass seeds. The lawn then needs to be kept moist until the seeds germinate which takes between 8 to 15 days dependant on the weather and type of seed. The morning dews in the spring and fall are thus very conducive to grass seed germination from over-seeding. Spring over-seeding is essential for repairing areas where the grass has died or is thin after the winter. Spring over-seeding is best done between mid-April and the end of May.

Over-seeding is done with a blend of grasses as variety in your lawn creates a healthier and more naturally resistant lawn. Certain diseases and insects favour certain types of grass. A mixture of grass types will mean: a) that your lawn will be better prepared to recover from any injury; b) adapt to the varying levels of light from the sunny spots to the shady areas of your lawn; and c) better able to resist insects.

In Canada the grass species that are grown are called cool season grasses. This means they do most of their growing during the times of cooler temperatures in the spring and fall. Cool season grasses tend to go dormant during the heat of summer and start growing again with the fall rains. Species of cool season grasses include: Kentucky bluegrass, perennial ryegrass, fine fescue and tall fescue.

Contact Harmony Gardens Landscaping to discuss a natural lawn care program specific for your lawn and in particular top dressing with over-seeding or over-seeding.

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