Lavender roses also are known as "blue roses." They have a lavender hue instead of a true blue hue. Some common blue rose varieties that are blue are Blue Jay, Reine des Violettes and Blue Girl. Some blue roses that are more purple are Veilchenblau and Cardinal de Richelieu roses.
Lavender roses may die more quickly than other varieties of roses because they can be more susceptible to disease than sturdier rose varieties. Lavender roses do not thrive in extremely humid climates, which create a prime environment for diseases to breed.
Fresh-cut lavender roses may not last as long as other roses because many of them must be imported from countries that have hot, dry climates. If you live in the United States, this means you will need to live in this kind of environment or you will need to be prepared to use imported lavender roses as soon as they arrive at the florist's shop.
If you are looking for a heartier lavender rose that has a good disease resistance, consider purchasing a Blueberry Hill rose. This rose keeps its hue even through summer heat. North Carolina State University describes the rose as "vigorous."