Best lawn irrigation specialists near Olivette, MO

While hydroseeding is designed for bare soil, it is possible to apply it over an existing lawn with certain adjustments. For the new seed to be successful, it needs good seed-to-soil contact to germinate and take root. Without proper preparation, most of the new seed will fail to establish and will die. To hydroseed over existing grass, first mow the lawn as low as possible, then loosen and clear any exposed soil. It is also recommended to use a finer mulch mixture in the hydroseed spray, which helps the seeds penetrate the existing turf and reach the soil without suffocating the established grass.

Fast-track your seeds to success by pre-soaking them for 24 hours in a shallow container filled with tap water. The water will penetrate the husk and moisten the embryos inside. After one day of soaking, sow the seeds in the soil. Never soak the seeds for more than one day (unless the specific variety calls for longer), as prolonged soaking could cause them to rot.

Power seeding can be worth it if your existing lawn is looking sparse or patchy. Power seeding can quickly and effectively plant new grass seeds and help grow a thicker lawn. But if your lawn is in pretty good health but could use a little more TLC through dethatching, fertilizing, weeding, or aerating, you may not need to spend money on power seeding costs.

The best time to plant grass seed depends on your local climate and whether you have cool-season or warm-season grass.

For cool-season grasses (like tall fescue), the ideal time to seed is late summer or early fall (typically August and September). During this period, the soil is still warm from the summer, but the air is cooler, creating optimal conditions for germination and root establishment before winter. There is also less competition from weeds. Spring is a secondary option, but cooler soil temperatures, the risk of a late frost, and less time for the grass to mature before summer heat can make it less successful.

For warm-season grasses (like St. Augustine), the best time to plant is from late spring through mid-summer (typically May and June), when temperatures are consistently between 75 and 90 degrees Fahrenheit.

In general, it is best to avoid seeding during winter or early spring, as cold soil and air can prevent seeds from germinating. For recommendations tailored to your specific grass type and climate, consider consulting a local lawn care professional.