How deep is the soil that the roots are in? I've always transplanted baby cuttings when the roots are growing out the bottom of the pot, so is there any way you can see where the roots are at?

I have read people just lifted the sprout out and repotted it if it was in a tray of seedlings. If it were in it's own pot there wouldn't be a problem.

I just lift them out with a knife -- easy does it, try to avoid breaking off the tip of the root, and it's better, but not essential, to keep some of the starting medium clinging to the roots (but don't panic if it all falls off -- just carry on) -- and ease them into an individual pot. Water in immediately.

Ditto catspa above. I just moved some seedlings today. If you need to grab them to pull them up a bit, make sure you grab by the true leaves, not the stem or cotyledons.

The container I stated the rose seedlings in is a (don't laugh) one of those containers you get spinach in from Costco. It is probably 8 inches deep and a foot long. I did NOT put holes in the bottom. I filled the bottom with damp sand and then put in a two inch layer of seed wet starting mix, laid the seeds on the mix and covered with more wet starting mix.... I put the plastic lid on it and set container under a grow light.... Since it is a container without holes the roots won't come out the bottom....

I was pretty mad at myself when I did this, because I forgot to nick the the seeds or rough them up.... I figured they would not sprout... In fact, when the first one came up I thought it was a weed.... glad I left it alone. I started another batch the same way, only I nicked the seeds before planting them.

I went ahead and moved the larger one to a pot using a knife to help lift it out of the container. I was surprised that roots were so wide, not deep. I put it under a glass jar once I moved it.... Not sure if I should, but I thought since it came from such a humid environment that it might get really stressed if the roots were disturbed and went to a dry environment..... if the plant doesn't die today.... and looks pretty good tomorrow I will start taking the jar off a few minutes a day

I have no idea what any of these are.... hopefully they will turn out pretty with lots of scent. Even if they don't it is fun growing them...

The smaller ones are still in the Costco Container

This is the one I just moved.... hopefully I did not damage him during his transplant....

When should and how should I fertilize him.... and with what.

Thanks

@sharon2079 I’m also new at growing rose seedlings but I have learned that when you take out the seedlings and plant each one in its own container, put the soil all the way up to the bottom leaves so they will have strong root systems later. Here are some of my seedlings from the stage where they shared a growing cell with other seedlings to the stage where each one was in its own cell. The last pic is where the first bud will open soon. Helen

Ok... I can't believe this.... maybe it is just a leaf... but look at the upper left .... is that a bud... I just moved it out of the flat into an individual pot 6 days ago....

And look at how tiny the plant is.... isn't it too little and too young to have a bloom... maybe it is an looking leaf.... what do you think.

I had a "Secret Garden Musk Climber" seedling bloom at about that size -- looked just like "Mom".

I've read that seedlings bloom when they're really tiny so it looks like a bloom to me! How exciting!😃

Then there are the "seedlings" who, at one to two years old, have yet to show a bud, even now, though I remain hopeful. These are good-sized plants (1 1/2 - 2' in 2-gallon pots), one from a hip on 'Lilac Charm' (which looks a lot like a little rambler in form -- maybe "Arcata Pink Globe", not far away, is involved), the other found under 'Snowbird' (has zig-zaggy stems and foliage and stems have a lot of red in them -- interesting plant). I'm thinking these may prove to be once-bloomers -- if they ever bloom! :-)