they sure do Bucky, I use the area behind my home and in front of my parents mobile home for part of my garden, and never fail up comes a tomato plant from some my dad started when the first moved here in 2000..He and mom are both gone now, but that and the hummingbirds that flock to my yard tell me, welll you knowbuckytom said:lol, i like the term volunteers.
i took over our garden after my fil passed away, and have desperately tried to change it from a dupont special to an organic garden.
one thing i have done, tho, is keep a small area in one corner undisturbed every year, and without fail, an few cherry tomato plants come up as "volunteers", from his plantings.
my fil loved cherry tomatoes, and each year a few of his plants still come up from seeds from the year before. it's been alomst ten years now.
still, there's a weird albeit deep connection, between him and me in his garden. so long as they grow, so he lives between the plants, in the sun and soil.
as much as i want to sell this house, i'll be sad to let things go like that.
gardeners really do put down roots, don't they?
kadesma