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Top Questions About Cosmos Flowers

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Questions About Cosmos Flowers

  • Answered by
    Alisma on
    September 18, 2016
    Certified Expert
    A.

    Our site cannot recommend specific suppliers, but I think this plant is available from some online retailers. You could also try asking around garden clubs and organizations in case a member is willing to share seeds or plants with you. Good luck.

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  • Answered by
    Downtoearthdigs on
    October 7, 2016
    A.

    Save the seeds! This is a great way to propagate the plant for next season.
    If you are growing your Cosmos in a pot, you can also allow the plant to go completely dormant.
    Then store the container in a cool but frost free space. Garage or shed that stays just above freezing will work.
    You can also lift the root and crown and store them much as you would Dahlia roots.
    Here are some links that may help you.
    https://www.gardeningknowhow.com/ornamental/bulbs/dahlia/storing-dahlia-tubers.htm
    https://www.gardeningknowhow.com/garden-how-to/seeds/storing-seeds.htm
    https://www.gardeningknowhow.com/ornamental/flowers/cosmos/growing-chocolate-cosmos.htm

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  • Answered by
    Downtoearthdigs on
    January 4, 2017
    A.

    Distortion of flowers can be due to insects or disease.
    Inspect the plant to see if you see any issues.

    Treat the plants with Neem Oil. Neem Oil works as both an insecticide and fungicide.
    It is also safe for people, pets and bees.

    Here are some links with more information.

    https://www.gardeningknowhow.com/ornamental/flowers/cosmos/growing-cosmos.htm
    https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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  • Answered by
    Rena Esset on
    April 3, 2017
    A.

    Cosmos won't weather a freeze well, so you need to wait until frosts in your area are historically behind you. (You don't say where you're located.)

    One way to figure out the average last frost dates in your area is to go here: https://davesgarden.com/guides/freeze-frost-dates/#b

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  • Answered by
    Downtoearthdigs on
    May 5, 2017
    A.

    Distorted flowers can be a sign of the Leafhopper pests.

    https://www.gardeningknowhow.com/ornamental/flowers/cosmos/cosmos-flower-diseases.htm
    https://www.gardeningknowhow.com/ornamental/flowers/cosmos/growing-cosmos.htm

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  • Answered by
    ellie13232 on
    July 27, 2017
    A.

    You have an insect known as leaf miners. They are within the layers of your tomato leaves.They are difficult to control when found in a plant producing an edible crop since you cannot use systemic insecticides. Neem Oil may help, but read the label prior to purchase to see if it lists both leafminers and tomato plants for control and safety. If the plants are producing fine and the leafminers are not in other plants you may just want to put up with the ugly leaves.

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  • Answered by
    Downtoearthdigs on
    July 28, 2017
    A.

    It sounds like Aphids on your flowers and plants.

    I would treat them with Neem Oil. Neem Oil is organic and safe for people, pets and Bees.

    Neem Oil is an insecticide and also works as a fungicide.
    You may need to repeat the treatment every 7 to 10 days.

    https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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