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  • Answered by
    Downtoearthdigs on
    June 27, 2017
    A.

    It could be environmental, uneven watering, pests or even natural aging of the flowers.
    n the case of plants which have borne an abundance of bloom and then show signs of going out of bloom, a light pruning will produce another crop of flowers within 15-20 days. Here's the problem; people DO NOT want to cut plants back and WILL NOT cut them back as long as one pitiful-looking bloom endures. People who cannot discipline themselves to to shear old blooms periodically should not grow Verbena. After the first spectacular bloom display cut-shy people will be looking at ugly for the rest of the season and wondering why. Bloom removal is not tedious. Simply trim about a fourth of the plant's top growth, including old flowers but do not expose main stems, with a flexible line trimmer. Pruning removes old flower parts, shortens the plants and encourages branching which soon results in an even showier and prolonged display of bloom especially if you will fertilize and water after each cutback. Cutback will probably be required two or three times per season.

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  • Answered by
    Downtoearthdigs on
    July 16, 2017
    A.

    Make sure you are regularly watering, at least one inch a week.

    Review the growing conditions as listed in the article below to see if you can pinpoint the issue.

    https://www.gardeningknowhow.com/ornamental/flowers/verbena/growing-verbena-plants.htm

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  • Answered by
    MichiganDot on
    August 19, 2017
    A.

    A hungry deer will eat almost anything. That said, the annual verbena genus are not a preferred food and are given a 2 out of 4 in Rutger's list of plants where 1 is least likely to be bothered by deer. https://njaes.rutgers.edu/deerresistance/

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  • Answered by
    Downtoearthdigs on
    November 7, 2017
    A.

    It looks like you are in gardening zone 5b. Perennial verbena cold hardiness varies by the species, but many will do well in 5b while it will be a bit cold for some others. Your plant may benefit from some winter protection:

    https://www.gardeningknowhow.com/garden-how-to/mulch/mulching-plants-in-winter.htm
    https://www.gardeningknowhow.com/plant-problems/environmental/protecting-plants-winter.htm

    Other Verbenas are annual and won't survive the winter in any case.

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  • Answered by
    MichiganDot on
    November 10, 2017
    A.

    I forgot the link: https://www.gardeningknowhow.com/ornamental/flowers/verbena/annual-perennial-verbena-varieties.htm

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  • Answered by
    MichiganDot on
    November 10, 2017
    A.

    The big question here is whether you have an annual or perennial verbena. Most sold at local nurseries are annuals. You can collect seed or take cuttings this fall. If you didn't steadily deadhead spent blooms, verbena may self-sow. New stems and leaves will emerge next spring if you have a perennial variety. Cut down the stems either this fall or early next spring. This article explains: https://www.gardeningknowhow.com/ornamental/flowers/verbena/annual-perennial-verbena-varieties.htm
    Try looking at google images of verbena to ID your variety. Many annual verbena are hybrids and will not come true from seed.

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  • Answered by
    Himanshu123 on
    December 19, 2017
    A.

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