I have been told that tomato seeds are famous for surviving the sewage treatment process and sprouting into healthy plants along the banks of sewage lagoons. I'm not a biologist, just curious. Cucumber seeds are less sensitive to some phytotoxic material but are easier to work with.
Tomato seeds are more sensitive and convenient to work with.
One of my graduate students who just finished her Ph.D. used tomato seeds instead of cress seeds and got a good results. A week back someone wanted an address for getting cress seeds. This list is a service provided by and for members of the US Composting Council. Opinions are those of the posters alone and do not necessarily represent the US Composting Council, Foundation or Board of Directors. Non-members of the Council are limited to one message only.