Gladiolus is a popular flower that is grown in various regions of the world. However, there are some regions with climates unsuitable for growing gladiolus. In these regions, growers use methods to protect the plants from cold weather.
For a given region, growers have different opinions on what is too cold for gladiolus. For example, some growers in Portugal say that temperatures below 45 degrees Fahrenheit are too cold for the plant to grow efficiently. Conversely, some growers in Latin America don't care about high temperatures and say the plant can thrive in any temperature as long as it doesn't get over 100 degrees Fahrenheit.
Gladiolus can be grown outside of its climate range even though it might not thrive there often. With proper precautions and good timing of planting Gladiolus should survive.