Thank you all for the responses! I had forgotten about propagating perennial vegetables as an option!
Also, thank you Su and Tina for mentioning the slow internet issue. I'm going to have to think about how to address that issue on my site... I have optimized my images to greatly reduce their size and the site loads fairly fast according to my google analytics data but of
course that is not taking into account people in rural areas with slower internet.
I don't want to distract from this
thread's topic on perennial vegetables but I will make a new thread about the issue of sites not loading for people in rural areas with slow internet. That thread will be a good place for us to continue this conversation and perhaps brainstorm some ways to balance it all.
Please keep the responses to the original question on perennial vegetables coming! Thank you all!