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| Rosa rugosa |
Rosa rugosa, or more commonly known as
Japanese rose or Rugosa rose, is a species of rose that is native to temperate
and cold coastal sites in Eastern Asia, southern Siberia and Japan. It was
first introduced to Europe and North America as an ornamental plant with many
people liking the large colourful flowers and it can be grown as dense
hedgerows. It is also used as a root stock and for breeding with other rose
species due to its disease resistance and was renowned for its ability to
withstand drought, heat, frost and winter hardiness as well as being able to
cope exceptionally well with salinity.
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| R. rugosa in the sand dunes |
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| Large area in the sand dunes |
Rosa rugosa has been planted in many
areas due to its hardiness and low maintenance needs. However it also causes
significant problems at coastal sites as once established it grows extremely
rapidly, outcompeting all native plant species and it is extremely difficult to
eradicate. The dispersal of the seeds is predominantly by birds that feed on
the rose hips however this species can also be spread from broken fragments of the
plants rhizomes that break off when the plant has been cut and removed for
disposal.
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| Flower before it becomes a rose hip |
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| Stems cut and scored for pesticide treatment |
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| Large stand of R. rugosa down by Lowsy Point cabins |
At Sandscale Haws Rosa rugosa has been present on site since the 1980’s but it has spread from just a couple of small clumps to a current total of 15 stands varying in size from just 1m² up to the largest at 864m². We are currently working in conjunction with Natural England, who manage the nearby North Walney NNR to trial different techniques for removing this invasive species and restoring species rich dune grasslands. This is going to be an ongoing task as eradication of the species in a single year is impossible but hopefully the annual monitoring, treatment and removal of R. rugosa will prove effective.
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| Treating the cut stems of a small patch |
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| One area that we've brushcut and burnt. Will spray with herbicide when regrowth comes back |
