ISU turf expert: let grass go brown, it’ll be okay

Alot of folks if you weren’t already watering your lawn, your lawn probably got pretty crunchy, this time of year for me i raise my blade up and grow the grass longer, helps in the summer months.  Love laying down some stripes 🙂   but  My lawn went a little bit dormant, but with the good soaker we had recently (5 inches of rain in and around mason city)    Starting to bounce back nicely…    we honestly only need about an inch of rain per week and the grass should be good.    Here is a story from a Turf Expert at ISU!

(My Lawn)

A lush, green lawn is a source of pride for many Iowans and this prolonged drought is forcing many of us to quit worrying about having the best lawn on the block — and to let the grass go dormant.

Adam Thoms, a horticulture professor at Iowa State University and a turfgrass extension specialist, says it’s stressful for grass to shake up the watering schedule, so he’s telling Iowans if their lawns are already turning brown, just let them go.

“Putting them in and out of dormancy by watering and stopping and then restarting is really hard on the turf,” Thoms says. “It’s okay to go into dormancy. The grass can last for 30 to 60 days with that straw-brown color and it won’t hurt it at all. It’ll come back out in the fall.”

Des Moines Water Works, which serves more than 600,000 customers in 18 central Iowa communities, is asking residents to voluntarily conserve and cut back on watering. Thoms predicts many folks in the metro area -will- cut back, as requested.

“There’s some research out there that shows when they ask for those voluntary commitments that people do step up and follow those,” Thoms says. “We always suggest that you don’t water every day anyway. It’s better to do a deep and infrequent watering. That forces the turf roots to go deeper to chase that water deep in the soil, so, that’s an okay thing.”

Some people turn on the sprinklers for hours at a time and let them saturate the grass, but Thoms says most lawns don’t need more than an inch of water in a week. If you’ve laid sod within the past year or are trying to grow new grass from seeds, you’re in for what could be an expensive, frustrating challenge. “Those are the ones that are going to get hurt by this drought. They’re the ones that need regular watering just because they don’t have a deep root system,” Thoms says. “We do need to make sure that those get regular waterings. If you’re thinking about overseeding or adding seed to your yard, just wait. Right now is not the time. It’s too hot and it’s obviously too dry.”

If the dry weather lasts much longer and grass has been dormant up to six weeks, apply an inch or so of water in a single application. The grass won’t green up, but it’ll keep the roots alive. If the drought continues, water in that fashion every two weeks, but not enough to bring it out of dormancy. Thoms suggests Iowans give their lawns a good dose of fertilizer this fall to help them recharge and ideally, come back strong next spring.


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