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New Greenhouses

NEPTUNE 4-Tier Mini Portable GREENHOUSE Green Grow Hot House Manufacturer: NEPTUNE Feature(s): - mini greenhouse - 4-Tier greenhouse - greenhouse - Portable GREENHOUSE - green house	FlowerHouse Spring House Portable Greenhouse (Model SP300) Manufacturer: Flower House ~~$250.00~~ Feature(s): - Revolutionary self-erecting portable greenhouse - Lightweight design makes transport, set-up and takedown easy - Provides superior protection for your plants from insects, birds, frost, wind and weather - Get a head start on the spring and summer months and also garden year round - 78 by 72 by 72 inches (h x w x d) deep with two 36- by 60-inch screened entry openings
4- Tier Mini Greenhouse Manufacturer: Tek Supply Feature(s): - Portable and frost-resistant - Includes removable zip-front cover - Metal frame and shelves are hunter green - Tubular steel frame snaps together quickly and easily - 19"D x 27" W x 62" H	Finley 19020 Shed Kit, Peak Roof Manufacturer: Finley Feature(s): - EASY PLANS INCLUDED. Materials lists, cut lists, and detailed instructions with step-by-step images - COST EFFECTIVE. Our 2x4 Basics Shed Kit can save you 50 pecent or more over other pre-built and - STRONG CONSTRUCTION. Our galvanized steel connectors are designed for use with sturdy 2x4 (38 mm x - Item Dimensions in inches: 5 L x 11.5 W x 6.75 H - Item Weight: 10.9 lbs. LUMBER NOT INCLUDED!
FLOWERHOUSE SeedHouse Portable Greenhouse, Manufacturer: FLOWERHOUSE Feature(s): - Self-erecting portable greenhouse - Requires no assembly tools - Compact and lightweight - 2 portholes for hose and power cord access - 3' x 4' x 4' overall dimensions	Lean to Greenhouse Manufacturer: Exaco Trading Feature(s): - Aluminum frame with enamel coating for long life. - Includes roof vent and ground stakes (shelf not included).Extra roof braces for rigidity. - 4mm twin-wall polycarbonate glazing - UV coated - Sliding door (24" x 65") that can be positioned on either end. - Dimensions: 6' L x 4' W x 76" H at peak and 49" at shoulder (54" with base)
Large Easy Up Greenhouse - Frost Protection Manufacturer: Homier Distributing ~~$0.00~~ Feature(s): - Easy access to plants via a zip opening side door - Durable steel and PVC construction - Ground ties and hooks for secure ground fixing - Suitable for all sheltered positions - Plant protection	Greenhouse Box Planter Plant Stand Holder Showcase Manufacturer: Jed Mart ~~$39.95~~ Feature(s): - Cathedral style - Antique design - Greenhouse planter - Polyresin - 12" x 8.25" x 12.5"
Malibu Landscape Lighting 200 watt Transformer ML200RT Manufacturer: Malibu ~~$122.99~~ Feature(s): - Powers all 12volt lighting systems up to 200watts - Used for all low voltage lighting applications - Surge resistant construction - automatic ON/OFF programmable timer - manual ON/OFF override switch	Flower House FHPH130 PlantHouse 3' Manufacturer: Flower House Feature(s): - Manufactured to the Highest Quality Available. - Design is stylish and innovative. Satisfaction Ensured. - Great Gift Idea.

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About Greenhouse

A greenhouse is a structure with a glass or plastic roof and frequently glass or plastic walls; it heats up because incoming solar radiation from the sun warms plants, soil, and other things inside the building. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall. These structures range in size from small sheds to very large buildings.

Greenhouses can be divided into glass greenhouses and in plastic greenhouses. Commercial glass greenhouses are often high tech production facilities for vegetables or flowers. The glass greenhouses are filled with equipment like screening installations, heating, cooling, lighting and may be automatically controlled by a computer.

The glass used for a greenhouse works as a selective transmission medium for different spectral frequencies, and its effect is to trap energy within the greenhouse, which heats both the plants and the ground inside it. This warms the air near the ground, and this air is prevented from rising and flowing away. This can be demonstrated by opening a small window near the roof of a greenhouse: the temperature drops considerably. This principle is the basis of the autovent automatic cooling system. Greenhouses thus work by trapping electromagnetic radiation and preventing convection. A miniature greenhouse is known as a cold frame.

Greenhouse Uses

Greenhouse effects are often used for growing flowers, vegetables, fruits, and tobacco plants. Bumblebees are the pollinators of choice for most greenhouse pollination, although other types of bees have been used, as well as artificial pollination.This helps the plants to produce more plants for future plantations.

Besides tobacco, many vegetables and flowers are grown in greenhouses in late winter and early spring, and then transplanted outside as the weather warms. Started plants are usually available for gardeners in farmers' markets at transplanting time.

The closed environment of a greenhouse has its own unique requirements, compared with outdoor production. Pests and diseases, and extremes of heat and humidity, have to be controlled, and irrigation is necessary to provide water. Significant inputs of heat and light may be required, particularly with winter production of warm-weather vegetables. Special greenhouse varieties of certain crops, like tomatoes, are generally used for commercial production.

Greenhouses protect crops from too much heat or cold, shield plants from dust storms and blizzards, and help to keep out pests. Light and temperature control allows greenhouses to turn unarable land into arable land. Greenhouses can feed starving nations where crops can't survive in the harsh deserts and Arctic wastes. Hydroponics can be used in greenhouses as well to make the most use of the interior space.

Source: Wikipedia