itma
Queen Bee
LASI at Sussex Uni has published its research into pollinator-friendly garden planting.
Before quoting any results, it is important to note that they were looking for garden plants that were useful to the insects during midsummer.
Personally, I think this a "strange choice".
Their waggle dance forage analysis showed that in midsummer their bees deserted the countryside and headed for the parks and gardens of Brighton.
So, I'd have thought that actually garden plants weren't a problem, so much as countryside forage in midsummer. Well, heigh-ho, I'm not the Prof ... !
There isn't yet a working link to the actual paper, but Sussex Uni provides a synopsis at http://www.sussex.ac.uk/newsandevents/?id=21598 of which this snippet includes some of the findings
Before quoting any results, it is important to note that they were looking for garden plants that were useful to the insects during midsummer.
Personally, I think this a "strange choice".
Their waggle dance forage analysis showed that in midsummer their bees deserted the countryside and headed for the parks and gardens of Brighton.
So, I'd have thought that actually garden plants weren't a problem, so much as countryside forage in midsummer. Well, heigh-ho, I'm not the Prof ... !
There isn't yet a working link to the actual paper, but Sussex Uni provides a synopsis at http://www.sussex.ac.uk/newsandevents/?id=21598 of which this snippet includes some of the findings
One key result found by researchers Professor Francis Ratnieks and his PhD student Mihail Gaburzov was that garden flowers attractive to the human eye vary enormously (approx 100-fold) in their attractiveness to insects, meaning that the best plants for bees and other insects are 100 times better than the worst. So it pays to make an informed choice of plants from the thousands available to gardeners.
Bees (87 per cent) and hoverflies (nine per cent) were the most frequent visitors, with butterflies and moths just two per cent and all other insects also two per cent. The researchers observed clear differences in the mix of bee and insect types attracted by different varieties, indicating that careful plant choice can not only help insects in general, but also help a range of insects.
Other findings were:
Some cultivated varieties and non-native flowers – usually seen as ornamental only – can be helpful to wildlife. For example, open dahlias attracted many bees, especially bumblebees, but pom-pom or cactus dahlias attracted few insects, because their highly-bred flowers make it difficult for insects to reach the flowers’ pollen and nectar.
Highly bred varieties of lavender, including those of novel colours, such as white or pink, or hybrid lavenders, proved highly attractive to insects.
Plants that the researchers can recommend to gardeners include lavender, marjoram, open-flowered dahlias, borage, and Bowles Mauve Everlasting Wallflower. Marjoram was probably the best all-rounder, attracting honey bees, bumble bees, other bees, hover flies, and butterflies. Borage was the best for honey bees. Lavender and open-flowered dahlias were very attractive to bumblebees. Bowles mauve was the best for butterflies. But all attracted a range of insects.
The least attractive flowering plant to insects was the pelargonium – a popular garden plant.
The garden perennial plant lamb’s ears (Stachys) was popular with an unusual species of bee, the wool carder bee which, apart from feeding on the flowers, uses the hairs of the plant for nest-building. Male carder bees guard a patch and chase away bees of other species, and other males.
Professor Ratnieks says: “Our trial is by no means exhaustive – we looked at a small selection of the thousands of plants you can find in a typical garden centre. But our study clearly shows that planting pollinator-friendly flowers is a no-cost, win-win solution to help the bees. The plants attractive to bees are just as cheap, easy to grow, and as pretty as those that are less attractive to insects.