experience , group new works

the works that me is proud , it is the experiment that enjoys very much

enjoy accompany doing , but , rejoice that succeed

thank everyone , respectfully.

respect everybody friends.

guide

I like...

I cannot speak about the technical aspects. They look good to my eye, and I would be interested in purchasing a couple.

Fabulous

Dave

why are the insides glazed also ?

Why not?

What bothers me is the in-curved rims on many of them. It makes it hard to repot.

JimLewis wrote:Why not?

Well, I'm afraid of saying that I have never seen that experienced bonsai enthusiasts and pros are using insides glazed pots in Japan ever.
The reason is that root can't breathe in there…the inside glaze will get  root choking.
This is what I was told by one of my experienced bonsai friends when I made my own pot first time (Needless to say I too made some inside glazed).
Even if you will manage to evade that, I am sure the inside glaze won't be good to tree.

JimLewis wrote:What bothers me is the in-curved rims on many of them. It makes it hard to repot.

I agree, I'm always annoyed with them at repoting. The glaze colour is nice though.

i always thought not glazing the inside allowed some water retention... not much, i'm sure, but a little...

not sure about the breathing though... if the outside is glazed, i believe it would negate any breathability...?

It makes absolutely no difference. Plants grow fine in porcelain, glass, and in plastic containers. It's one of those they-do't-do-it-in-Japan-so-they-MUST-be-right things. Probably a certain amount of aesthetics involved, too -- for empty pots.

i realize that plants can and do grown in any number of containers, but wouldnt an unglazed, slightly porous container retain some moisture...

actually, when i think about it, i guess i dont even need an answer to that...

i have a handful of micro-miniature spekboom that are in tiny unglazed terracotta pots with zero drainage holes that i water from the outside of the pots and it seeps through...

Yeah but teracotta pots are just barely fired. The Stoneware unglazed bonsai pots are fired a a significantly higher temperature. No seepage there. I don't think you can compare. Besides, the fine feeder roots don't penetrate the pot to get moisture. They use moisture held in the soil -- by the pot.

Beautiful pots & glazes.

Once fired to stoneware moisture retention is negligable, that is why most insist on it for their bonsai pots, the only reason you wouldn't glaze the iside of a stoneware fired pot is aesthetic & to save glaze as it makes no difference to the roots IMO & experience.

your glazed pots are beautiful.  suggest that you add at least 4 small holes to allow plants to be tied down in the pot. do you have a catalogue with prices in USD for your line? will you ship to Hawaii?

best wishes,   sam

The only credible reason I've heard not to glaze the inside is because it decreases the ability of the roots to grip the sides of the pot. We typically wire our plants in, so it's a non-issue in most cases.

well, i guess the day i stop learnin' something is the day you can plant me (in an unglazed box)

of all the opinions and theories, the wanderer makes the most sense...
except i wouldnt think "grip" would be the right word...
but i imagine that a glazed pot may, by it being slippery, allow some undesired movement
while unglazed might prevent that movement (as not everything is wired in)

JimLewis wrote:It makes absolutely no difference.  Plants grow fine in porcelain, glass, and in plastic containers.  It's one of those they-do't-do-it-in-Japan-so-they-MUST-be-right things.  Probably a certain amount of aesthetics involved, too -- for empty pots.

Dear Mr.Grumpy,

First of all, thanks for your reply it reminds me of seeing a kusamono in a glass pot at the first web exhibition which held 2years ago.  
I have to take back my words. here is a photo.

JimLewis wrote:It's one of those they-do't-do-it-in-Japan-so-they-MUST-be-right things.

My previous quote doesn't mean like that at all. You misunderstood what I said completely.
If my quote made you think so, it's because my poor english and insufficient explanation. I know some people warship Japanese bonsai blindly, while others cause allergic reaction against Japanese bonsai style.
As you know I'm the only Japanese IBC member who is posting constantly so I get to be very careful before I post. I sometimes feel like a penguin in a swan lake here… I wish I could have some other Japanese members who could correct me if I was wrong.

JimLewis wrote:It makes absolutely no difference.

Oh yes, it does make difference. Are we discussing about bonsai pot, not a PLANT pot, aren't we?
What is the primary condition about bonsai pot is to grow bonsai tree healthy. Root is the core of the tree, and sufficient breading function is indespensable for it, Therefore adequate air permeability is necessary as bonsai pot.
Consider air permeability, drainage, water retention, moisture absorption, radiation etc, unglazed pot is the best for growing pot.
As far as I'm concerned, inside glazed, porcelain, glass, plastic these kind of are worst condition as bonsai pot.

These are my recognition:
Air permability, drainage, moisutre absorption, radiation
unglazed(good) > glazed(OK) > inside glazed,porcelain,glass,plastic etc.(bad)

Water retention
Inside glazed,porcelain,glass,plastic etc.(good) > glazed(OK) > unglazed(bad)

Surely tree can survive inside glazed, but personally I won't use them now and forever.
By the way, The word "aesthetics" is such a convenient word which is usable for the thing that you don't understand other countries cultures very much.

Well, I'd better stop hijacking this topic. IF my above explanation still sounds like what you call "they-do't-do-it-blah-lblah-blah" I shall clam up.



To Guide,

Appologize for my hijacking and I have no intention of offending nor attacking you.
Hopfully my looong humble opinion will help you to improve your work.
Keep on good working

Sincerely,

nekotoban

beautiful reply...

(mr grumpy ? very funny !)

if i am so lucky to have a beer with jim, in october i will try to lighten him up

the main correction i see in your english is: warship vs worship

i am sure you now see the difference...

one is a bad memory of a time long past between our countries,
and the other is... well, you explained it well enough.

JimLewis wrote:It's one of those they-do't-do-it-in-Japan-so-they-MUST-be-right things.

nekotoban wrote: My previous quote doesn't mean like that at all. You misunderstood what I said completely.
If my quote made you think so, it's because my poor english and insufficient explanation.

I was actually responding to Kevin (Beer City Snake), but I guess it would apply to your post, too. I was NOT taking a personal jab at anyone, and sorry if you saw it that way.

Nevertheless, bonsai are PLANTS. Give 'em, water, fertilizer and sunlight (and drainage), they'd grow in a cast-iron cauldron. So would daikon.

Couldn't find a similar topic- porous vs non-porous containers- and wonder if this has run its course, or should we start a separate topic. Nekotoban makes good points, and so does Mr. G . My understanding of literature on unglazed clay is not so much the effect of absorption of water, but rather the main benefit is the gradual release of that absorbed moisture, thus extending the 'prime time' between soil that is saturated with water and soil that is completely dry. Am I close on that?

Common sense and most literature implies or states that a Porus Pot Interior is desireable...

NNTR

Common sense has also said that evergreens must have light in the winter and chinese elms must hibernate.

My point here is that common sense (and literature for that matter) must be backed up by science. I'm not arguing for the sake of arguing- looking at the science behind what we believe can bear the truth and help us all be better gardeners. I'd like to hear what science people have that can refute or support various practices.

If my words don't show it, I mean to approach this with gentle respect.
David

Stoneware has almost zero moisture absorption so you can add it to the list of 'bad' growing pots....

And the amount of moisture even the MOST absorbent of pots could hold would be miniscule to a plant's needs. It is the soil that does or doesn't hold moisture.

I'm sorry, but I think we're dealing in the realm of bonsai myth/tradition here; a bonsai will healthily grow in any container that is not toxic to it. That's both science and common sense.

However, common sense will tell you that a tree growing in a shallow porcelain or glass container that is not tied in is likely to slip of of it at the slightest jostling, so to THAT extent, there may be some validity on unglazed interiors. That would scarcely apply to most of the pots in this thread, though.