Beware the Spanish bluebell, a beautiful but dangerous bloom

Beware the Spanish bluebell, a beautiful but dangerous bloom

Gardeners are advised to look closely at bluebells in their gardens to stop an intruder and save our native species, Maria Hodson reports


Have you seen this bluebell? Be warned, if you have it in your garden, you are harbouring an invasive species that poses a risk to homegrown blooms.

Gardeners have been asked to watch out for the Spanish bluebell, a tall, robust plant that is spreading rapidly across the UK and threatening our delicate native bluebells.

The Spanish bluebell was first introduced as an ornamental garden plant in the 19th century. Unlike the fragile, violet-blue, drooping and fragrant native bluebell, the scentless Spanish bluebell has upright stems, lighter blue bell-shaped flowers and wider leaves than our homegrown variety.

Its strength leads to its dominance over the native bluebell, as it spreads rapidly by seed and bulb, often escaping from gardens into woodland and urban areas and outcompeting our smaller bluebell for resources such as light and space.

It also interbreeds easily with native bluebells, creating fertile hybrids that undermine the native UK population. It is now thought that most bluebells in urban areas are actually hybrids.

Chris Bonnett, plant expert and founder of Gardening Express, said: “Spanish bluebells can spread more easily than our native species, so gardeners need to be aware of how quickly they can multiply.

“The biggest risk comes from gardens, where they may be planted for their beauty but can spread beyond boundaries through seeds, bulbs and garden waste if left unchecked."

Native bluebells are a protected species but as the march of Spanish bluebell continues apace, the native bloom is facing a fight for survival in key woodland battlegrounds. Gardeners are urged to familiarise themselves with the two species, so that they can correctly identify and halt the fast spread of the Spanish bluebell.

ASHFORD, KENT - APRIL 9: English bluebells at Hoads Wood on April 09, 2024 in Ashford, Kent. Hoads wood in Kent is a 199 acre site of ancient woodland, and an SSSI (Site of special Scientific Interest) which is granted by Natural England on account of its diversity of flora and fauna. In 2020 local residents began to notice commercial waste disposal taking place on the site, and what appeared to be the felling of Oak trees to create a 4 acre plot for the waste. Despite reports to the Police, Ashford Borough Council, the Environment Agency, and Natural England and being the subject of a recent campaign, the site was only blocked off in January 2024, ‘to prevent further ‘illegal' tipping’. The closing of the site came following a court restriction order, obtained at Medway Magistrates Court at a hearing on 16 January 2024. After 4 years of illegal activity consisting of 20-30 trucks a day, allegedly many without number plates, tens of thousands of tons of waste now sit on the site, 12 feet high in places. Locals have suggested that the waste is creating hydrogen sulphide gas fumes and signs of leachate, highly toxic water, that is feared will seep into the River Beult, a tributary to the River Medway, presenting further environmental and public health issues. Pressure for the site to be cleared is mounting as the ‘Rescue Hoads Wood’ campaign gathers pace, with the recent backing of the Naturalist and BBC presenter Chris Packham. Hoad’s Wood is where the body of 33-year-old Sarah Everard, murdered by Met Police officer Wayne Couzens, from Deal, was found in 2021. (Photo by Dan Kitwood/Getty Images)
Slimmer and more fragrant English bluebells in their natural habitat (Credit: Dan Kitwood/Getty Images)

Native bluebell

Hyacinthoides non-scripta

Also known as the common bluebell, English bluebell, British bluebell, wood bell, fairy flowers and wild hyacinth

This sweet-smelling bloom has a slender, drooping stalk and creamy white pollen. Its deep violet-blue, narrow tubular-bell flowers with curled-back tips appear on only one side of its stem. An early flowerer, it appears in ancient woodlands and woodland edges in April and May, often in swathes of violet-blue blooms that carpet the woodland floor in spring.

The Spanish bluebell

Hyacinthoides hispanica

Introduced by the Victorians as a garden plant, this scentless bloom has broad leaves and pale blue, conical-bell flowers that grow all the way around the upright stem. Its pollen is green or blue, and it is often found in gardens and suburban woodlands.

Top image: Spanish bluebell, Hyacinthoides hispanica. (Credit: Universal Images Group / Getty Images)

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