Catawba rhododendron bushes can reach a height of 6'-8' with a spread of 4'-6'. Displays are most effective when rhododendron bushes are massed together. These are poisonous plants -- do not allow children to ingest any of the azaleas or rhododendrons.
Best Answer: Tornadoes are caused by winds. When a tornado forms the wind pressure around the tornado drops and that's what you see on the barometer, the pressure goes down.
Build a Fog Tornado. What creates the 'tornado' part is the air created by the fan, forcing said air out of the chamber while the air from the openings on the side, forces air into the chamber. The positioning of the ventilation is critical for creating this tornado-like effect. The fog comes from the dry ice. Problem: