Geoffrey Jellicoe’s historic Water Gardens in Hemel Hempstead will appear in a TV documentary this month.
The concluding episode of BBC Two’s Secret History of The British Garden, presented by Gardeners’ World favourite Monty Don, explores the effects the two world wars had on attitudes to gardening.
The show reveals the pioneers, such as Mr Jellicoe, who led a gardening revolution which evolved into today’s thriving horticultural industry – worth £9billion a year.
Last year Dacorum Borough Council announced plans for a £3.4million refurbishment to the gardens on Waterhouse Street.
So far, workers have extracted silt from the river, from Combe Street to Bank Court, plus the lake.
The islands will be removed before work begins on the first fish pass, which is the weir north of Bridge Street.
Electrical ducting is being installed between Combe Street and Bridge Street, as well as repair work to balconies overlooking the water and ground preparation for new tree planting.
> The programme will be shown at 9pm on BBC2 on Sunday, December 13.