"The bulk of the maintenance costs of the Domain of Laeken relate to the Royal Greenhouses (which are only open to the public three weeks a year, ed.) and the priceless collection of plants whose maintenance has been accepted by the state. In addition, in addition to our own works, government contracts are regularly put out to tender for the renovation of monumental greenhouses. Such as the Congo greenhouse in Laeken, for which around 1.7 million euros has been budgeted in recent years."