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Sheepdog1833
LSU Fan
Member since Feb 2019
163 posts
 Online 

Home lawn irrigation question
I just installed an automated irrigation system for my established yard.
What schedules do you set this time of year (south LA):
1. What time of day?
2. More than once a day?
3. How long do you let each zone go for?


lsuson
LSU Fan
NOLA
Member since Oct 2013
6102 posts
 Online 

re: Home lawn irrigation question
After taking the master gardener class, they stated the biggest waste of money is watering your lawns. Literally just throwing money away. Take it for what it’s worth but we saw a few yards without any irrigation and they were practically weedless, green, no yellowing what’s so ever. This was St Aug.


Drunken Crawfish
USA Fan
Crushing 'skis at Tobin's house
Member since Apr 2017
2111 posts

re: Home lawn irrigation question
Maybe for very well establish lawns, but I have a fairly new Bermuda yard and it will get yellow if it doesn’t have water on it every 4 days or so.


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notsince98
Missouri Fan
KC, MO
Member since Oct 2012
10560 posts

re: Home lawn irrigation question
Don't water every day. That is the biggest issue. Really the best is only water when you need to and no more.

Look up the needs for your grass type.

Find out how long it takes each zone to put down about a half inch of water. That will likely be a good starting point for each zone.
This post was edited on 8/13 at 7:14 am


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fightin tigers
Downtown Prairieville
Member since Mar 2008
46042 posts

re: Home lawn irrigation question
Once established, 2-3 times a week for about 20 minutes a zone.

Of course, this is lawn only zone and it will vary some whether you are using rotors, sprays, etc.

Water earlier in the morning during summers, no need during the winter.


Hammertime
UNO Fan
Will trade dowsing rod for titties
Member since Jan 2012
42757 posts

re: Home lawn irrigation question
My city water is garbage, but rain certainly makes everything go wild. My mom's water is much better, and when my step-dad turns off the sprinklers, and forgets to turn them on, all of the plants die in the summer


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Thecoz
Member since Dec 2018
157 posts

re: Home lawn irrigation question
This is good plan
I do three times and a little less on shrubs but at least 20 on lawn
In this heat in Texas I sometimes run a full cycle through the night before a regular water day to allow plants to absorbed moisture overnight and then another soakin the morning
Look at the yard after a station and adjust as required so you are not watering after you have started water run off to a drain etc


notsince98
Missouri Fan
KC, MO
Member since Oct 2012
10560 posts

re: Home lawn irrigation question
quote:

This is good plan
I do three times and a little less on shrubs but at least 20 on lawn
In this heat in Texas I sometimes run a full cycle through the night before a regular water day to allow plants to absorbed moisture overnight and then another soakin the morning
Look at the yard after a station and adjust as required so you are not watering after you have started water run off to a drain etc


It is recommended to reduce the time the water sits on grass to prevent fungus. Watering between 3-6AM is usually a good time to get good absorption without having water sit on the plants for 8+ hours.


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CrawDude
LSU Fan
Baton Rouge
Member since Apr 2019
674 posts

re: Home lawn irrigation question
The general guideline you’ll find recommended by all land grant universities in the South for lawns, landscape beds, etc. is a minimum 1 inch of water per week, spring through fall. So you’ll need to experiment with your own system to see what settings achieve that for you, perhaps starting with some of the settings recommended by others as an initial starting point.

Get some empty tuna fish cans (about 1 inch deep) place them in strategic areas of your irrigation coverage area. See how long it takes them to fill to one inch when operating your irrigation system. . Best to water infrequently and deeply than a frequently and shallow. Depending on your soil you may not be able to provide 1 inch + in a single watering. For example water may run off heavy clay soils before it sufficiently soaks in, so you might want to try to target a 1/2 inch of water twice a week or even two separate watering in the same day if you have heavy clay soils.

As already recommended by others ideally water early morning to minimize water loss to evaporation and to minimize lawn disease issues, particularly for St Augustine. Also if you have large mature trees in your yard you might need to provide more water than the 1 inch as the tree roots compete with the lawn grass for water.

Lastly, do you have the ability to integrate a rain gauge monitor in your irrigation system so that your irrigation system doesn’t operate during periods where you are getting sufficient rainfall? If so, consider installing one. In the interim, use a cheap rain gauge to monitor rainfall, and operate your irrigation system when you get less than 1 inch of rain per week, and don’t operate it when you do. Too frequent watering can be as problematic as under watering, so don’t get to giddy and overuse your new lawn irrigation system.



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RollDatRoll
Atlanta Braves Fan
Who Dat. Roll Tide.
Member since Dec 2010
11921 posts

re: Home lawn irrigation question
Early morning
2 good waterings a week. Enough for the water to get down to the roots.
1 inch a week should be enough


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BigPerm30
Chicago Cubs Fan
Member since Aug 2011
12988 posts

re: Home lawn irrigation question
Get a Rachio 3 controller. It does all of this for you and skips days if there will be rain.


Thecoz
Member since Dec 2018
157 posts

re: Home lawn irrigation question
I hear you but it is ok in mid summer when you are lucky if the evening temperature is below 80-85 like it is now in Houston

But yes do not water at night in early spring or fall because of your fungus comments.
I do not recall the temp of fungus hazard I think it is like do not water at. night if temps below 75????

Thanks for the good comments

Right now trying to get a little water deeper in root system in Houston cause we are in a serious dry spell over here!!!!


Popths
LSU Fan
Baton Rouge
Member since Aug 2016
1883 posts

re: Home lawn irrigation question
Money well invested


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notsince98
Missouri Fan
KC, MO
Member since Oct 2012
10560 posts

re: Home lawn irrigation question
quote:

I hear you but it is ok in mid summer when you are lucky if the evening temperature is below 80-85 like it is now in Houston

But yes do not water at night in early spring or fall because of your fungus comments.
I do not recall the temp of fungus hazard I think it is like do not water at. night if temps below 75????


Maybe it varies by location and grass type but in KC, the summer is the worst time for fungus. I think the general rule is when the temperature plus relative humidity percentage are greater than 160, that is when fungus thrives. Spring and fall are the safer times to water evenings/nights.


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bbvdd
Alabama Fan
Memphis, TN
Member since Jun 2009
17149 posts

re: Home lawn irrigation question
quote:

Get a Rachio 3 controller. It does all of this for you and skips days if there will be rain.


Got one of these this spring. I love it. Saves so much water and so much better than my old controller.


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