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Top Questions About Hydrangea Plants

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Questions About Hydrangea Plants

  • Answered by
    Nikki on
    May 29, 2011
    Certified Expert
    A.

    If you have holes in the leaves, including your hosta plants, then it could be slugs. You would likely not see these pests as they generally come out only at night. This article will help: https://www.gardeningknowhow.com/plant-problems/pests/facts-about-slugs-and-how-to-kill-garden-slugs.htm

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  • Answered by
    Heather on
    June 3, 2011
    Certified Expert
    A.

    The red cypress is not the problem. They likely need more water. If they are newly planted, they need lots of water until they are established. Increase watering and that should help.

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  • Answered by
    Nikki on
    June 1, 2011
    Certified Expert
    A.

    It is likely lacking a good phosphorus/nitrogen balance in the soil. Too much nitrogen or too little phosphorus will cause it to fail to bloom. This article will have some other suggestions as well:
    https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

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  • Answered by
    Nikki on
    June 5, 2011
    Certified Expert
    A.

    They could have been lacking water, as the rainfall you received was not much. Hydrangeas are heavy water feeders and if they do not get enough, will quickly succumb to dry conditions. This article will help determine if your shrub is still alive. In the meantime, give it some water. https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm

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  • Answered by
    Nikki on
    June 5, 2011
    Certified Expert
    A.

    This article has information about changing hydrangea colors: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/change-hydrangea-color.htm

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  • Answered by
    Nikki on
    June 11, 2011
    Certified Expert
  • Answered by
    Jackie on
    June 16, 2011
    A.

    You don't say where the black is on the leaf. If its around the edges, you plant is suffering from transplant shock, sunscald (because it was grown in a shadier spot than yours) or lack of water (possibly before you bought it). If this is the case, your plant will recover. If the dark spots are in the center of the leaf, it's probably disease. Dig it up and return it to the store.

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