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  1. #1
    Join Date
    Jan 2010
    Location
    Alachua County, FL, USA
    Posts
    7,537

    Default Flowering Dynamics and Pollinator Visitation of Oilseed Echium (Echium plantagineum)

    Flowering Dynamics and Pollinator Visitation of Oilseed Echium (Echium plantagineum)
    Echium (Echium plantagineum L.) is an alternative oilseed crop in summer-wet temperate regions that provides floral resources to pollinators. Its seed oil is rich in omega-3 fatty acids, such as stearidonic acid, which is desired highly by the cosmetic industry. Seeds were sown in field plots over three years in western Minnesota in spring (early-sown) or early summer (late-sown), and flower abundance, pollinator visitation, and seed yields were studied. Initial flowering commenced 41 to 55 d after sowing, and anthesis duration (first flowering to harvest) was 34 to 70 d. Late sowing dates delayed anthesis, but increased the intensity of visitation by pollinators. Cumulative flower densities ranged from 1 to 4.5 billion ha−1. Flowers attracted numerous honey bees (Apis mellifera L.), as many as 35 per minute of observation, which represented about 50% of all insect visitors. Early-sown echium produced seed yields up to 750 kg ha−1, which were 229 times higher than those of late-sown echium. Early sowing of echium in Minnesota provides abundant floral resources for pollinators for up to two months and simultaneously produces seed yields whose profits rival those of corn (Zea mays L.).
    http://www.plosone.org/article/info%...l.pone.0113556
    americasbeekeeper.com
    beekeeper@americasbeekeeper.com

  2. #2
    Join Date
    Nov 2014
    Location
    Portugal
    Posts
    690

    Default Re: Flowering Dynamics and Pollinator Visitation of Oilseed Echium (Echium plantagine

    I have two apiaries on land in Echium vulgare arises spontaneously in mid / late May with great abundance. It is a plant that is highly sought after by my bees. Flowering lasts between 3-4 weeks depending on the humidity and temperature. The honey is amber clear , with a slightly salty taste and crystallizes relatively quickly.

  3. #3
    Join Date
    Feb 2015
    Location
    Carvel, Alberta, Canada
    Posts
    12

    Default Re: Flowering Dynamics and Pollinator Visitation of Oilseed Echium (Echium plantagine

    Be careful of which bugloss you plant...Echium vulgare (known as Blueweed) is on Alberta's invasive plant list http://www.invasiveplants.ab.ca/

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