There are many different kinds of plants growing around and in Lake Katherine. Some of the plants that are not native to the area include:
- Buckthorn
- Burdock
- Canada-Thistle
- Cattail Hybrid
- Common Reed Hybrid
- Garlic-Mustard
- Honeysuckle
- Multiflora Rose
- Purple-Loosestrife
- Reed-Canary-Grass
- Teasel