Just wondering how are these pots in freeze thaw cycles? I always wondered if they would crack in Ohio winters
They're great. Hold up well over Winter in zone 6b.
Also can be drilled with a masonry drill bit carefully for anchor holes.
Bonsaijack.com is where I get my soil components.
You can try to drill this pot but good chance it will turn into a repotting session anyway as you invert to drill it. Once out, can't see reusing this current pot again. It is not ok to answer your question. You will need some type of screening to cover the single central drainage hole in this Tokoname pot. Regular terra cotta pot will absorb water and crumble when freezing.
1st...
This juniper has to be outside.
Looks to be indoors and probably was not outdoors where purchased. So adapting to the full Sun it needs to grow is important.
Don't just push it into full Sun right off.
How damp is current soil?
Any black residue under the rocks or gnats?
With correct watering being the 1st biggest reason new enthusiasts kill their bonsai, no drainage holes makes proper watering next to impossible. So you have 2 corrections to make. Pot and adapting to full Sun outdoors.
Keep all foliage on it for this year.
Try a couple of 1 gallon nursery canned junipers.
They're much further developed, usually established and drain ok. Once their growing tips are swolen and plump begin transition to bonsai soil.