Royal. Victorian™ 12X9X19.ft VI46 GreenhouseDESCRIPTION The Victorian Greenhouse is one of the premier greenhouses in the Helios line of greenhouses from Janssens of Belgium. This company has been making high end glass greenhouses for over 70 years. This is a classic looking English greenhouse with the best insulation and features of modern technology. Thick frame profiles combined with rubber seals and a high quality structural design will give you peace of mind in any weather condition.