Hi everyone! and thanks in advance to anyone that replies! Hi, and welcome to the discussions! I'm on a super tight gardening budget this year - and by super tight I mean the only way I'll be getting flowers/plants for my container garden is from taking cuttings/seeds from what I already have and what my friends/family are willing to let me take little "snips" of. Anybody with cash can go buy a truckload of beautiful blooms - even have someone plant and care for them. What you want to do takes love, patience, consistent effort, forethought, determination, and IMO, can be extremely satisfying. I'm fairly new to propagating from cuttings - I have Purslane and Blue Daze (Evolvus) down pat, but I don't know what type of cutting and when to take them from ... pretty much anything else, I don't know if it's even possible to take cuttings from some stuff. Here's a list of the plants I have at my "snipping" disposal - Here's my experiences with some of your list... Clematis ... I had 'the president' but it pooped out the first day it was 100 degrees - boo) Clems like to be in full sun with their roots cool. Next time, try placing a potted plant so that it shades your clem roots during the hottest part of the day. This may help it get going. Remove flowers after the petals fall off so the plant does not waste any energy making seeds. Clems take a few years to establish. They make seeds but it is uncertain if seeds will make the same flowers as the parent plant. Mulch is very helpful for Clems. Balloon flower (platycodon grandiflorus - just the regular one and P.g. 'Mariesii') - makes seeds that are ready when the seed pods develop openings at the top. A long-lived perennial. Hosta (32 jillion varieties) - divisions as soon as the summer heat passes or early spring. Hostas live for a LONG time. Columbine - makes seeds that are ready when the seed pods develop openings at the top. Individual plants are short-lived perennials. Canna (My grandpa is going to mow over them if I don't come dig them up this weekend - can you move them any time or will they just die? Most of his don't have flowers and I don't know if it's because he doesn't water or if it's because he mows over them almost every year - can you grow them in containers?) - makes tubers that can be moved about any time. If grandpa mows them, no big deal. I think the ground (vs. in a pot) is preferable for anything perennial in your zone. Try to put them somewhere where they won't be soggy all winter but will get plenty of water in the summer. Mowing and/or lack of water could both lead to lack of flowers. You can cut large tubers in half to make more, and each year the tubers get bigger and make "pups." They also make seeds but people don't always have an easy time trying to get these seeds to sprout. A long-lived perennial as long as the tubers don't rot in the winter. Jasmine (not sure on variety, it may have...

Dayflowers (Commelina species) are trailing plants which spread by rooting into soil wherever a leaf joint touches soil, or meets moisture. So growing roots along the stem is its natural habit.

In re-reading your question I note it is actually two separate questions. (1) which will root from buried stems, and (2) which benefit from being buried above the crown when being transplanted. They are not necessarily the same issue. While most all vegetables I can think of off hand (except alliums) can develop some roots along a buried part of the stem that doesn't mean they all should be buried above the crown, buried deeply. Nor does it mean all will benefit from you doing it. For EX: It is commonly done with home-grown leggy, lanky transplants but isn't necessary or even recommended with properly grown transplants. Tomato plants are quick to develop ancillary roots on the stem, peppers and eggplants are not. See the distinction? So what is your goal? Dave

Don't you worry about those roots. By looking at it, it tells me that the cutting is getting well establish and under the soil the roots should be even more noticeable. It's normal to get those aerial roots from cuttings. :)