Tag Archives: plants

Snowdonia Hawkweed: ‘One of most threatened in the world’

The BBC reports on cliffs above Bethesda that can only be reached with specialist mountaineering gear, grows one of the most endangered plants in the world. The exact location is a closely-guarded secret, but even sheep are unable to get to it, meaning they cannot eat the last of the Snowdonia Hawkweed. Their grazing has wiped the plant out in six of seven areas it once thrived. But from the verge of extinction, it is thought three plants spotted on a cliff in 2002 may have doubled their number.

“For some of the rarest plants, the only places they can sustain themselves is away from grazing and humanity, on the most inaccessible ledges and cliffs,” said horticulturist Robbie Backhall-Miles, who is trying to revive them.

Norfolk’s rediscovered ‘ghost ponds’ offer up trove of long-lost plants

The Guardian reports rewilding projects reveal rare species preserved in buried ancient wetlands. Botanists believe that this will lead to new plant discoveries; seeds can survive for centuries under layers of leaves and mud so once they are given water and exposed to sunlight the plants will grow.

Already, six plants of the endangered wetland flower grass-poly have been found at the edge of an old cattle-watering pond on the Heydon estate in north Norfolk. The species had not been seen in the county since the early 1900s. 

Orchid thought to be extinct in UK found on roof of London bank

THE GUARDIAN reports a rare species of orchid believed to have been extinct in the UK has been discovered on the roof of an office building in the City of London.

Serapias parviflora, also known as small-flowered tongue orchid, was found growing in the 11th-floor rooftop garden of the Japanese investment bank Nomura. It is usually found in the Mediterranean basin and the Atlantic coast of France, Spain and Portugal.

Pampas grass might be having a style revival on Instagram, but it is a threat to wildlife, experts warn

iNews reports once a staple of a 1970s garden, the pampas grass has burst back into fashion as a favourite of the Instagram generation. The plant’s dried fronds have made a comeback as the ultimate interiors accessory, with fans even resorting to stealing it from coastal beaches to get their style fix. But although pampas grass might be a trendy alternative to a vase of fresh flowers, it is no substitute for native grasses on UK coastal dunes, experts warned this week.  

‘Superplant’ shrub absorbs 20pc more pollution than other hedges

The Daily Telegraph and iNEWS report one metre of dense hedge will mop up the same amount of pollution that a car emits over a 500-mile drive. Plant scientists at the Royal Horticultural Society have advised growers choose bushy, hairy-leafed alternatives, as these have been found to remove more air pollution.

Researchers tested three hedges for pollution removal in traffic hostpots;  Cotoneaster franchetii, Thuya plicata (Western red cedar) and Crataegus monogyna (hawthorn). They found that the cotoneaster franchetti was by far the most effective at cleaning the air, and that in just seven days a one metre length of well-managed dense hedge will mop up the same amount of pollution that a car emits over a 500 mile drive. 

Botanists in race to save rare flower from extinction

The Times reports one of the rarest plants on a Scottish mountain celebrated for its botanical riches could become extinct in the wild. Experts are now planning a rescue mission for the mountain sandwort, which has delicate white flowers, after a big decline in numbers.

The most recent count of the plant on Ben Lawers, Scotland’s tenth highest Munro reveals a fall of more than half in just 15 years. Botanists will gather seeds on the Perthshire mountain this summer to grow in a safe place and ensure the plant’s survival.

Summer is already over with leaves falling from the trees two weeks early, RHS reveals

The Telegraph reports summer is officially over, the Royal Horticultural Society has said, as autumn colours are being seen in their gardens and apples are ripe two weeks early. Many have noticed amber-hued leaves falling from the trees in the last weeks of summer, and the temperature has dropped from the giddy heights of the heatwave.

The early spring heat gave many types of fruit, including greengages and apples, a head start to the growing season, meaning that harvests have come early. Trees and shrubs are turning their leaves as they have been confused and stressed by the recent erratic weather, causing them to prepare for autumn earlier.  

Photo by Jack Cousins under creative commons.

Ivy hailed as nature’s thermostat rather than a creep

The Times reports the climbing plant has received the endorsement of the Royal Horticultural Society as the best to provide an architectural vest that keeps buildings cool in summer and warm in winter.

An experiment conducted by the society with the University of Reading suggested home owners should not be concerned about ivy harbouring damp, as the plant reduced relative humidity on warm winter days by 5.7 per cent. 

Photo of ivy covered house by Karen under creative commons.

Killer pigmyweed from New Zealand putting Britain’s lakes at risk

Sky News reports pigmyweed was first sold in the UK as an ornamental plant for domestic ponds but it was banned after damaging rivers and lakes. The New Zealand pigmyweed has already wiped out several native plant species in the Lake District and there are fears that the area’s most pristine lakes are next. 

The Telegraph and The Express report staycationers taking a holiday in the Lake District have been warned they could be spreading a killer weed from New Zealand, which is at risk of smothering the aquatic life in the famous lakes. Pigmyweed, once sold as a decorative plant for home ponds,  is already responsible for several native plant species being wiped out in the Lake District, and there are fears that the area’s most beautiful lakes could be infested next… if people travel from an infested lake to a pristine one without taking care to wash any plant debris off their clothes, dogs, boats and bodies, they risk spreading the killer weed.