What can I plant with an English Ivy ground cover under a large shade tree? I was hoping to add some color. The area is full shade.
Very few plants flower in the shade. That is because reproductive material takes an awful lot of energy that is created from light and photosynthesis to make that energy.
There are a few plants, very few in number, that flower profusely in shade. Impatiens for one.
What kind of soil, exactly how dark is this shade? All flowering plants that flower in shade need at the very least ambient or light bounced off other plants, structures in the landscape. We would need a picture of the environment you are discussing to add more options for you. Impatiens, my example, does well in full shade but there has to be light bouncing off a lawn or from outside the perimeter of shade.
One could enlarge their options by thinking of colorful foliage. The site I am including does both...color in shade