Is it possible breed plants without greenhouses or large gardens? I was thinking more of having a few pots at the window, or is that not enough?
I don't want to breed something useful, just something that's different from the normal e.g. different colour, different size, different leaf shape or a clover with one leaf.
Wouldn't asexually reproducing plants be extremely slow to breed?
I'm not sure what changes I can expect. The number of plants will be very limited so I don't think I can expect to get any new interesting mutations within the population. I was thinking that if I use a plant that grows in the wild I could go out and look for plants with interesting traits to bring into the population.
Some are, some aren't. The mother-of-millions, for example, buds extremely fast; along the edge of each leaf it generates several buds that will fall off, each of which is likely to become its own plant. Many others are slower.
Getting interesting mutations in your breeding generally takes some planning, some chance, and lots of time... probably a few generations. Generally, unless you're selecting for traits, more natural selective tendencies (not talking natural selection, just unplanned crossing) will generally conserve the approximate allele frequencies in the population. Having a small parent base will also slow things down, reducing the potential sources of variation.