A land boom in the Westland region of Holland, the centre of the glasshouse industry for over 100 years, is causing growers to relocate away from the 2,000 hectare concentration which is the largest protected cropping area in the world. With prices of over £23 per metre and still rising, salad and flower growers are already moving to other cheaper parts of the country to make way for residential developments. Glasshouse expansion in Holland has risen by more than 10% in 11 years to a total of 11,000 hectares according to the latest Dutch survey. Peppers have now replaced tomatoes as the largest crop. Wherever they are situated growers are also forming cooperatives and sharing packing houses and heating costs to become more cooperative. {{FRESH PRODUCE }}