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Do you know the variety you planted?
Proper planting is also important. Digging the hold wide enough for the roots to go out, not just down is important.

You should be able to prune the plants and take down the heights of the plants. Getting them to grow out 1 1/2 feet each side should happen over time with proper planting, soil conditions and fertilizing.

Here is a link to proper care needed.

https://www.gardeningknowhow.com/ornamental/shrubs/eugenia/growing-eugenia-plants.htm

What do the bumps look like, how big are they and what color are they? Are they on the top-side or under-side of the leaves? Do you see any signs of an insect infestation?

There are a few possibilities. It could be eugenia psyllid.

or it could be a leaf gall:
https://www.gardeningknowhow.com/plant-problems/environmental/treating-leaf-gall-on-plants.htm

I would need more information or a photograph for a more positive identification.

For more information on the care of eugenia plants, please visit the following link:
https://www.gardeningknowhow.com/ornamental/shrubs/eugenia/growing-eugenia-plants.htm

For a natural looking hedge you can prune once in spring, right after flowering and then again in the fall.
If you want a tight and formal hedge, pruning takes place year round, it is generally 6 prunes.

https://www.gardeningknowhow.com/ornamental/shrubs/eugenia/growing-eugenia-plants.htm

You will need to winter over the plant in an indoor area. They cannot tolerate temperatures below 25 degrees F.
Here is a link with more information.

https://www.gardeningknowhow.com/ornamental/shrubs/eugenia/growing-eugenia-plants.htm

Leaf curl can be a symptom of insufficient or inconsistent watering, possibly made worse by high temperatures. Try watering more deeply and on a schedule and see if that makes a difference. Root problems or a too-small pot (if it is in a pot) could also be a culprit.

Another possibility is insect damage. Psyllids and scale insects can cause leaf curling. In this case you would also see other signs of an infestations, such as small bumps or white or black patches developing on the leaves, or you would see the actual insects. Here is more information:

https://www.gardeningknowhow.com/plant-problems/pests/insects/getting-rid-of-psyllids.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/control-plant-scale.htm

Through my research, I cannot find anything on the toxicity of the plant... It is always best to assume that the plant is toxic when you aren't sure. As long as you can keep the plant from where animals and children cannot get to it, you will be ok.