This is part of the cannabis haul discovered by police hidden behind the walls of two terraced Fleetwood homes.
These pictures show the sprawling mass of plants and specialist equipment locked away in rooms inside the Poulton Street building.
A 16-year-old and two 17-year-olds, who cannot be named for legal reasons, are alleged to be behind the operation situated in flats above a wallpaper and paint shop in the town.
Police forced their way into the premises on June 13 and found 300 plants spread around six rooms in the two flats.
They said the plants had already been harvested up to five times and the estimated street value of the Class B drugs already produced was in the region of £250,000.
The three youths, said to be involved, appeared before District Judge Jeff Brailsford sitting at Blackpool Youth Court.
They are all charged with producing the cannabis over a period of a year.
The three are said to have used the roof void to travel between the two premises, and one of them allegedly never left the premises over the year-long period.
Martin Connah, prosecuting, said police claimed the three had come to Britain for the specific task of drug cultivation, and the Border Agency had become involved following their arrest.
Defence lawyers Steven Townley and Gary McAnulty said their clients now no longer had a fixed address in the UK.
The judge remanded the three in custody and sent their cases direct to Preston Crown Court, where they will appear next month.