By Jack Mendel One of the capital’s most-loved natural spots will be left unattended today as Regent’s Park gardeners go on strike. Members of the GMB Union who work atRegent’s Park are set to walk out over pay as industrial action spreads to other sectors of the economy during the cost of living crisis. The workers who are employed by Idverde, a private contractor, will down tools for 24 hours. The union said staff at the park were given less pay than gardeners at other Royal Parks, despite last year being awarded a prestigious award from BALI (British Association of Landscape Industries). An…