Yellowing and dying plants

Discussion in 'Fertilizer Application' started by stevenf, Oct 2, 2012.

  1. Smallaxe

    Smallaxe LawnSite Fanatic
    Messages: 10,082

    No such thing as a one size fits all, irrigation sprinkler system for plantings... the actual standard is, "Check the root zone and adjust accordingly"...
  2. jvanvliet

    jvanvliet LawnSite Gold Member
    Messages: 3,944

    There is no "industry standard" for irrigation. There are too many variables. Whether 10 minutes X 3 days is adequate or not depends on how much water the sprinklers are producing; what the plants requirements are; soil type; whether or not the water is adequate to perculate down to the root zone; drainage; rainfall; there is no quick answer.

    There are a number of good suggestions here, going to the extension is one. From what you have said, everything points to an apparent over-watering condition, but I can't really tell sitting in front of my computer, and neither can anybody else.
  3. Think Green

    Think Green LawnSite Silver Member
    Messages: 2,746

    All of the remarks are pretty dead on with problems associated with water absorption and release.
    I always will chime in after some one comments about a new commercial site was finished with dying plants within one season after planting.
    Did you pull a core sample of at least 12 inches deep and inspect the tilth, color, consistency of the top, critical, subsoils? I do this in multiple areas of new construction sites. Make a map of these zones as you pull cores.
    All sites will use this red clay fill to justify low spots and compact the area for foundations, parking lots and side walks. Most times, all the topsoils that is brought in is less than 6 inches for grass to grow on and the plants will suffer even more when the soil is horrible.
    I agree that you have poor drainage or not enough water considering this seasons heat and drought. Irrigating a lawn with poor sub soil saturation will only encourage shallow rooting and quick drying of essential feeder root systems.
  4. Snyder's Lawn Inc

    Snyder's Lawn Inc LawnSite Platinum Member
    Messages: 4,530

    to much water shut it off and hand water let beds dry out some
  5. brown thumb

    brown thumb LawnSite Member
    Messages: 14

    I would go clear back and look at the species planted. Plant native plants and grasses or at least cultivars selected for the specific micro-climate in which they are planted. Native prairie plants and native grasses are extremely tough and require little attention to get established.
  6. Think Green

    Think Green LawnSite Silver Member
    Messages: 2,746

    Good lord Brown,
    If I went into this commercial business and advocated they take up all the plants and make the original designer appear to be ignorant, they would open up the door and escort me out.
    The original design could work dependent upon certain factors. Mostly, water budgeting, monitoring water outputs, and proper drainage. Sometimes, you can't correct other designers mistakes as you know it is easier to draw a landscape design and sell it. It is harder to make it come out in dirt. The obstacles you encounter from local suppliers often makes things change. However, if the design wasn't installed correctly, then something needs to be done with it.
    I know these things are touchy with clients whom use big name local landscape companies. If you post bad images of this company, the customer only looks at you as a problem maker.
    Problems will occur from out of state contractor's doing shoddy work and not caring about local support. In such cases, it may be beneficial, but I haven't been too lucky in the pointing fingers department.

    I think the op can handle this like a new born and slowly win the confidence of the business and make slight changes rather than do it all at once.

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