It is selected for its purple flowers, and its shade tolerance.

Its shade tolerance is greatly dependent on conditions.

It is a plant well suited to hot temperatures, and it has little shade tolerance.

Its one noted weakness is shade tolerance.

In ecology, shade tolerance is a plant's abilities to tolerate low light levels.

Its shade tolerance makes it difficult to control, as it is often present in great numbers in the understory.

To be able to compete successfully in such habitats, it has adapted greater shade tolerance than most other pines.

Among North American maples, its shade tolerance is exceeded only by the striped maple, a smaller tree.

Selected for its shade tolerance and cold tolerance.

It has another virtue too in shade tolerance, providing the soil beneath is deep and cool.