- garden variety
- Greenhouses convert solar light to heat, enabling year-round production and the growth (in enclosed environments) of specialty crops and other plants not naturally suited to the local climate. Primitive greenhouses were first used during Roman times to produce cucumbers year-round for the Roman emperor Tiberius. The first modern greenhouses were built in Europe in the 16th century to keep exotic plants brought back from explorations abroad. Greenhouses remain an important part of horticulture today, and plastic transparent materials have also been used to similar effect in polytunnels and row covers.
Conservatory (heated greenhouse)
- Longwood Gardens – consists of over 1,077 acres (4.2 km²) of conservatories, gardens, woodlands, and meadows in Kennett Square, Pennsylvania. It contains 11,000 different types of plants and trees, as well as fountains. Original construction from 1919, Longwood’s conservatory is home to 5,500 types of plants in 20 indoor gardens. Gardens of the conservatory, each with its own exquisite displays of plants, include The Orangery, Silver Garden, Acacia Passage, Orchid House, Cascade Garden, Palm House, Mediterranean Garden, Tropical Terrace and the Outdoor Water Garden display.
- Kew Gardens
- Eden Project – multiple greenhouse complex in Cornwall, UK. Two huge enclosures consisting of adjoining domes house thousands of plant species. The first dome emulates a tropical environment, and the second a Mediterranean environment. The domes consist of hundreds of hexagonal and pentagonal, inflated, plastic cells supported by steel frames.
- Vertical farming greenhouse – Plantagon Greenhouse for Urban Agriculture, a possible solution to the problems the world faces when it comes to producing food in a sustainable way.