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Bonsai Repotting Adventures

Bonsai Repotting Adventures

This time of year we are always insanely busy. It gets to the stage where we judge our output each day by weight rather than order numbers. A bad day is currently about 500kg of goods but we have shipped over 1200kg on our better days this year. For an old man and his son-in-law that’s a lot of graft. Currently work has ground to a crawl as we have been let down by a supplier and so I thought I would take the opportunity to share some of my most recent Bonsai Repotting Adventures.

Regular visitors to this blog might have noticed that for 14 years i’ve spent this time of year ranting and raving about why I think most folk are re-potting bonsai both too early and too often. Whilst I realise this is good for our business it’s far from ideal for bonsai and there are many things much more important than the few quid we earn supplying ‘Bonsai Soil Products‘ to our lovely customers. Rather than spend my time fussing over what everyone else may or may not be doing I thought I would share some of my own recent bonsai re-potting adventures.

We have had an incredibly mild winter and that’s a GOOD thing by and large. 2023 was one of the worst years for cultivating bonsai that a can remember and I have a LOT of those behind me these days. As in most years I have filled my greenhouse with a huge number and variety of trees, primarily for protection from wet. A long mild wet British winter can be very detrimental to bonsai in a number of ways. Whilst most folk are worried about root rot and the like most hardy varieties in good condition can deal with wet feet. My own concern is more related to the degradation of deadwood and bark quality. A dry winter under cover makes a massive difference to these oft overlooked elements. Protection from howling north-easterly onshore winds that affect us out here on the east coast is also very important especially to finely ramified trees like elm varieties.

The downside of putting plants inside is that they will begin growing much sooner than those left outside. This can cause problems when temperatures begin to rise. A couple of days ago my greenhouse hit 25 degrees Celsius whilst outside it was 9. This means plants flush much earlier but once early summer gets here indoor temperatures are too high for some species like maples. A sunny day in May can easily see the mercury blast over 50C whilst it’s barely 15C outside. As soon as my trees buds begin to open they go outside unless my intention is to keep them in for the entire growing season. These things can get complicated but used wisely a greenhouse can add several weeks to our meagre growing season.

There is a simple rule to follow that ensures optimum timing for re-potting bonsai. I covered that in some detail in an earlier post When To Repot Bonsai.

These days I have largely stopped trading bonsai trees and concentrate on doing my own work and my own bonsai. Everything’s always for sale apparently but you’ll have to speak to Catherine about that 😉 Previously we were just pouring trees out the door and to a greater extent my bonsai activities became little more than a job running a production line. To some extent I lost my soul doing that but now it’s stopped and thanks to some hard work with my mentor Kevin Willson i’m back doing my own thing, not just producing a commodity to sell and I like it.

So, here are a few images of trees I have worked in the last week with hints and tips I thought ya’ll might like to see…..

Japanese Maple

First up a Japanese maple I bought a year ago. Whenever I bring in a new tree I leave it alone for the first season to get a measure of it’s vigour and general condition before I go blundering in unsighted. This little guy was unusually almost too vigorous as can be seen by the ugly coarse growth. This tree needs slowing down a bit which almost never happens especially in such a small pot.

The great thing about Japanese bonsai is that you get a good root system and a nice well prepared flat base to the trunk which makes repotting a doddle. As it turned out this tree was mostly planted in massive coarse Lapillo. A very bad choice in this case for such a small shallow pot where it can hinder fine root ramification and reduce root volume. The grains were mostly the size of marbles and above.

Now planted in pure Akadama graded to about 4mm and with the old soil cleaned right back onto the trunk base this tree should gradually come back into a sensible equilibrium. In time work can begin in developing appropriate ramification and refinement. There’s many years to go on this journey.

Japanese maple I bought a year ago.

Japanese maple I bought a year ago.

Japanese maple bonsai cleaned out and root pruned.

Japanese trees tend to have beautiful flat trunk bases because the folk that produce them know what they are doing.

Repotting bonsai like this is a joy!

A good water and then I have to wait until summer before work can continue on this one.

Korean Hornbeam

This lovely old tree came from a collection I bought a few years ago. It sold instantly and the new owner put it in this large plastic pot. These hornbeams grow very slowly in Blighty and restoring one like this is the work of many years. Repotting is not something that needs doing very often but when this tree came back to me last year I decided to clean it out to and make sure I have the most vibrant root system possible. A little prune, a little wire and a bag of our Premium Bonsai Compost No1 along with an old Chinese pot guaranteed to wind up somebody and we’re good to go.

Korean hornbeam in restoration.

Field Elm

Imported from Italy back when such things were easy. This big lump was a cheap and cheerful buy I intended to flip quickly. When it arrived in a plastic tub it had almost no branches. Last year I repotted and cut the base of the trunk nice and flat. A year later it was lifting itself out of the pot. In order to keep elm developing quickly I tend to repot every year simply because these trees make so much root and if they get pot bound they have a habit of dropping branches in my experience.

Italian field elm in for some TLC.

Root growth after 1 year, it’s solid.

Experimental soil mix.

Flat base thanks to previous surgery.

A reciprocating saw makes light work of reducing the roots. This took about a quarter hour.

I don’t have a front for this yet and no styling work has been done.

Anyone want to choose a side?

Dwarf Japanese Maple

Japanese maple tend to be one of the first trees to break cover at the end of winter and of those some of the first will be the dwarf forms like katsura or in this case what I assume it kiyohime. This tree came from a collection I bought a year ago. It looks to me like this is one branch of what was a larger tree once upon a time. Kiyohime are basally dominant and when not cared for correctly often the tops die out in whole or part. I can’t say that’s what happened here but I would wager a hefty sum it did. There was a lot of die back when it turned up.

Not repotted in decades the first job is to get it out of that pot. A rubber mallet was pressed into service and just before I worked up a sweat it all parted company. Once out I found an interesting hack to ensure the pot was not going to become waterlogged, it did come from the north-west. Either that or someone was trying hard to save a bit of soil.

The tree was planted either in John Innes No2 or garden soil. Hard to say but at least it cleaned out easily enough. I did spend some time last season giving this little tree some TLC and it’s vigour improved significantly so a drastic root prune this year is safe enough to complete. Now in a new more appropriate training pot this will grow like a weed this year. A big pot is not always a good idea and in this case a smaller pot full of vibrant root will produce better results than that other big blue fence post.

Japanese maple, likely kiyohime. Not repotted for decades.

Perfect timing for a repot. A week later it was in full leaf.

Interesting use of a little pond basket. Anyone like to hazard a guess what it’s doing there?

Garden soil / John Innes was de riguere in the 1980s.

In 2024 we have better soil options for bonsai cultivation.

Not 100% cleaned but most of this lump is solid wood.

Far from bonsai but at least it has a chance now and hopefully the die back will stop.

Chinese Elm

I make no secret about my love of Chinese elm, one of the finest deciduous species in bonsai. Trees like this one (less the rock etc’) are actually sold as bonsai in this country but they are very far from that being an appropriate moniker. However I have proven again and again just how quickly they can be developed into significant bonsai. So I put this one on/in this water worn limestone. I know it’s currently shit but I did make this one out of an identical type of elm about 6 years ago.

A bargain bin elm and 6 years of skillage.

I know right! We’ll come back to this one at a later date.

Privet Cutting

This silly bit of privet stump clutters up my bench and has done for a long time now. I really can’t be assed to style it so it gets the hedge treatment. For those of you that follow my work this may be familiar from the daft video I did a while back.

No doubt i’ll regret this little pot come summer but for now this odd little stump displays a certain character.

English Elm

Ulmus procera are everywhere, easy to find and collect. Over the years I have had hundreds and hundreds of these beautiful elms. However I have never seen one quite as nuts as this one. I gave it a first style last year and murdered the roots but it grew happily all summer. Now allied with the crappiest pot I could find. Not one for the purists….. like I care!

Privet Bonsai

Over the last 35 years I have owned literally hundreds of privets and a lot of them have gone on to become well know and important bonsai. Trouble is I never kept one for myself. I blagged this one from the garden of a mate a few years ago as a bare stump we jacked out of his hedge. It was potted properly about 4-5 years ago when the base was cut dead flat. To be honest I could not really figure out what to do with it and was too busy and preoccupied to care so it languished outside in a corner whilst the deadwood rotted away (that’s a good thing).

So recently I thought it was time to buck up my ideas and sort it out. I intended to make a video of the work but by the time I figured out what to do we were too busy so it’ll have to wait. I have been looking at this for years now and just could not solve the puzzle. In the end I photographed it from every angle. Then with a little chemical help from my friend Jack Daniels and a good herf the answer fell into my lap whilst flicking through those images. I can’t recommend substance abuse as a bonafide bonsai technique but we all have to walk our own path despite what anyone thinks.

Because I have neglected the tree for a long time now repotting was extremely overdue. In general privets should be repotted every year because they make so much root and sulk badly when pot bound. I got fed up trying to water this last summer and so a repot just had to be done. However the rootball was so compacted even a reciprocating saw was not going to sort this one out so I turned to my special root pruner.

Maybe I can shoot my movie in the autumn. In the meantime I would welcome your opinions. Answers on a postcard as they used to say. It won’t change my mind, I already know what this tree will become but it’s interesting to know what ya’ll think.

Privet overdue for styling but most bonsai benefit from us leaving them alone.

At one time this was the ‘front’. Sometimes we have to leave our ideas at the door and bring an open mind. At least 4-5 years since it was last repotted.

Absolutely solid root mass. There’s no way to rake this out in the conventional way.

Root pruning the easy way. I do know what lies beneath so this is perfectly safe, quick and fun.

Bonsai root pruning sorted!

Anyone need a door mat?

Ready to go back in it’s pot.

Work completed, this is the other side. We’ll come back to this one later in the year.

The post Bonsai Repotting Adventures appeared first on Graham Potter | Kaizen Bonsai Blog.

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Two Half Heads are Better Than One!

Two Half Heads are Better Than One!

Creating bonsai takes a really long time. It also takes a long time to figure out exactly how to do it so if you are starting out TODAY assume it will take twenty years to figure out the basics, and that assumes you are busy and not applying yourself in a ‘working from home‘, civil service, tired hands kind of a way.

Having been hammering away at bonsai now for the better part of forty years I might be so bold as to say I figured this all out a while back. I often say it takes ten years to figure out which end goes into the soil. Now that’s not strictly true in a Trumpian kind of a way, it’s not to be taken literally, it’s a figure of speech which illustrates that even after a decade in the saddle one can still be susceptible to chafing. That’s another figure of speech isn’t it but illustrates my point I hope.

Sadly todays society has, by and large, lost the appreciation of things that take time unless that time can be charged for of course. A bottle of Private Collection Glenlivet 1949 74 Year Old will set you back about £35,000 whilst a bottle of Whyte & Mackay Blended Scotch Whisky from Asda comes in at a very reasonable £17.00. I don’t drink Scotch but i know folk who do and they would be very keen to point out the difference of which I would be largely oblivious.

The basics of these two bottles are much the same (a distilled spirit) but the fact is one got left in the shed for a really long time and to a connoisseur who is blessed with a sensitive palate the difference is night and day and quite possibly worth every penny. The single malt had time to develop it’s special unique character alone whilst the blended one was engineered to taste a certain way and always the same way. Long ago I worked as a printer when the use of chemicals was acceptable workplace behaviour and I burned away whatever sensitive tissues I had in my head, my nose has not really worked since and so my ability to taste at all is minimal and as a result I have literally ZERO appreciation of these fine things.

For sure I wouldn’t drink that cheap blended s**t. On the very rare occasion I have Scotch in the house it’s going to be a 15 year old Glenlivet (donations gladly accepted). To be honest my preference is for a single barrel Jack Daniels, donations of which, again, I would be very glad to receive. Leave that blended stuff to the kids getting hammered on a Friday night.

So in this respect I feel I am like a lot of bonsai folk I encounter in daily life. I appreciate, at some level, the difference between good and bad, i know the basics but beyond that i literally know nothing and have no comprehension of the finer points. What I call a good whisky is unlikely to ever touch the lips of a true aficionado who might well look down on my choice as ‘window cleaner’ or some such.

After a lifetime spent immersed in something so deeply and so fanatically it’s impossible not to develop one’s palate and appreciation but it’s far from guaranteed. I know lovely folk that have spent twenty years travelling the world, attending every top bonsai exhibition year after year who see the very best our world has to offer and getting to know all the right people but don’t have a worthy bonsai to their name or a single clue how to make one.

I guess that’s like racing drivers, you don’t have to know how to engineer a car to drive one. If you want to be at the top of the game there’s a lot you need to know about how your machine works, why it does what it does or not. That way you can relay information back to the man that actually knows how it works so he can make it better for you. That’s why racing cars are largely managed and supported by a team. It brings all the best elements together that can never be embodied by a single person and the net result is better.

Seems to me many folk have money, opportunity or both and so have these nice things but can lack the apparatus to genuinely understand and appreciate their true value whilst a lowly person lacking in means but with highly developed senses, acquired through long application looks on in horror at the flagrant waste of true value and lack of appreciation and understanding beyond some notion of smug pride, that ‘look at what i’ve got’ nose in the air notion. Remember Stanley and Pammy……

These days I don’t tend to leave home, i did an insane amount of windscreen time back in the day and unless i am on two wheels I tend to avoid all travelling and stay off the roads. I don’t drag my trees all over the place showing them off and I’m very particular who I let visit my garden. I have no interest in impressing anyone with my work until I myself am impressed and trust me I am very far from that level so I continue to work hard and carefully to improve my results every single day and if I get the time perhaps one day i just might make a good bonsai in much the same way a blind squirrel might find a nut.

Going back to my analogy of a motor racing team it has always struck me that working together is best. However finding someone I can work with has not been easy. Most bonsai folk, certainly those I might choose to work with are a very long way from me. Just nipping over to Milan to work with Salvatore or Marco is not entirely practical. I’m also what one might call a ‘rummun‘. Hard to get along with, opinionated, largely oblivious to the feelings of others and determined to do it my way. Finding anyone to work with therefore was always going to be a challenge but lucky for me I know a guy….

Thankfully that guy lives not too far away, about 40 minutes on a well sorted Shovelhead. On paper Kevin Willson and I should not get on, we should fight like a cat and a dog but somehow, after 25 years, turns out we can actually work together fairly well. Mutual respect goes a long way and as they say ‘two heads are better than one’. Considering our advanced age and history of ‘substance abuse‘ I might say that two ‘half heads‘ make one properly functioning one but that might be unfair on my buddy. Whatever, between us we can knock up a half decent tree when we combine our skills despite our differing ideas on how that actually happens.

I guess we all have bonsai trees that have spent decades on our benches. Some become special to us whilst some are just bulk in our collection. This scots pine was one such for me. It came here from Norway perhaps fifteen years ago. Surprisingly it survived and I even styled it and made a video of the process though that was never released. Ultimately I got bored with it. I tried to sell without success and in time it started to suffer a little from neglect. I just could not bring myself to love it and having spent so long looking at it, as it was, I had absolutely NO inspiration to do anything with it at all.

Sound familiar? You got one on your bench?

Nowadays I stopped selling trees like we did at one time and am just rediscovering my love of bonsai work. I really don’t want anything in my garden that’s not special. So this pine stuck in my craw, can’t sell it, too much heart to dump it and no inspiration to reinvent it. As they say I could not see the wood for the trees. So what to do?

I’m a firm believer in letting folk do what they are good at. I don’t do any book keeping, banking or accounting because I have absolutely no head for numbers, absolutely NO clue whatsoever so I leave that stuff to professionals as I do web site stuff and lots of other things. Now when it comes to reinventing a bonsai tree there is only ONE place to be and that’s 40 minutes up the Norfolk coast and so it was I dropped this pine off on my unsuspecting mate last autumn.

I can’t imagine anything worse than having to create a bonsai tree from another artists work for that very same artist. Especially when you know it’s all going to end up online for the world to see in glorious Technicolour. That’s pressure right there but thankfully my raffish mate has a cast iron work ethic, a thick skin and’s not really that bothered what the hell I think. But then I did tell him to do whatever he wanted with my long suffering scotty.

As anyone who has had a tree worked by Kev’ will know, chances are when you get it back it’ll be tipped up on it’s side. No1 item on the agenda is finding the best trunk line and inclination. After that it’s just the technicalities of how to get the branches in the right place and with a good trunk line that’s usually pretty easy. But, this tree has a problem, one I failed to deal with decades ago and now I have no choice but to bite the bullet.

Norwegian scots pine 2017.

Norwegian scots pine 2017. To date lots of work has been completed in getting this established and ready to work.

2017 Same tree after Rammon and I worked on it. Nothing then happened until 2023, other than a few weak branches dropping.

Now when I first got this tree it was recently collected and I vaguely remember it was a planted in a long thin wooden box that was about a foot square and four feet long. It had been growing in a crack and had a long V shaped rootball with a good couple of feet folded back on itself. The growth was pretty much non existent. Come August Rammon helped me get it out of the box with the intention of sorting out the roots but that long hard V shaped root ‘ball’ was rock solid and mostly composed of wood in the form of big thick roots. The only live root ends I could find were insufficient to fill a teaspoon. I was entirely disgusted with the whole affair and intended dropping it in the bin but Rammon was insistent we give it a chance and so we broke up the rootball as best we could, cut away a load of dead suff, shortened it all as much as seemed safe and stuck it in a plastic pot with all that ugly wood just squeezed into the rectangular pot corner to corner. Miraculously it survived obvs.

So, as soon as I got the restyled tree back for Kevin my heart sank because I could see there was no chance of potting it at the appropriate inclination. Come last weekend and with buds extending i decided to bite the bullet. I would not normally repot a newly styled tree and I certainly would not recommend it but over the years I learned a few things that make a difference and create possibilities where there was none. Sometimes we just have to pull on the big boy pants and step up. Back in the day I would have done this without thinking but nowadays I don’t kill trees because I learned the finer points and have ‘developed my palate’ somewhat.

In conclusion working together, with someone of weight and experience really is the only way to create special bonsai trees worthy of the title. However finding that person’s not easy and if you are lucky and find one in you life hang onto them for all you are worth. Just last week my one and only bike riding mate of fairly recent acquaintance dropped dead on the way to a football match. Never even made it into an ambulance and I am totally heartbroken to have lost such a lovely positive and special friend.

Keep it real folks! Who knows what is just around the corner.

Scots pine bonsai.

Kevin had the tree tilted a little more. This is my compromise. Two Half Heads are Better Than One!

Scots pine bonsai tree

Masses of root and deadwood shoehorned into this pot. Beneath the surface is a solid block of wood literally hammered into the pot from corner to corner.

Scots pine bonsai

Corner to corner. There are several more like this directly beneath the surface and in both corners.

Scots pine bonsai

Those stumps were actually trunks as this grew in a small crack in a large flat expanse of granite.

Scots pine bonsai repotting

Long overdue a repot. When you see white root ends like this repotting can take place. Roots will regenerate in a few days.

It took 45 minutes just to get it out of the pot.

Scots pine bonsia.

And breathe ……. Sadly got the pot feet in the wrong place and it’s not the best of pots but this is one giant leap forward. There’s always next time.

The post Two Half Heads are Better Than One! appeared first on Graham Potter | Kaizen Bonsai Blog.

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