Repotting and Thinning Mature Ficus and Jades: Steps for Maintenance of Historic Bonsai

Source material: August 2020

            Recently, I randomly ran into someone who inherited some historic bonsai trees that I had previously been caring for alongside the former owner. Mrs. E had 3 different indoor bonsai - a Ficus benjamina dwarf variety, a Ficus macrocarpa, and a jade (Crassula ovata) grove - all 20-30 years old or more. While Mrs. E had an excellent garden and a proven track record for the maintenance watering and care of these trees, she did not have the nuanced experience in bonsai for more serious operations such as repotting and styling. This is why I and other Columbus Bonsai Society members before me were asked to come help her every few years to keep the trees healthy and not let them get too unshapely. She was my first bonsai client when I moved back to Columbus. Normally Mrs. E sat out with me, and we'd chat while I was doing the bonsai work. In this article you can see the before and after from their repotting when I first met her and these trees.

            In Part 2 next week, I will share an "Open Letter to First Time Bonsai Owners" which is adapted from the email I sent to the new owners of these trees. My goal was to provide the essential points needed to keep the trees happy and healthy and to assess their needs for a novice bonsai artist especially for dealing with precious older trees as your first foray into bonsai.

Sections:

1. Repotting of Historic, Mature Tropical Ficus and Jade Bonsai (this week)
1. Ficus benjamina
2. Ficus macrocarpa
3. Crassula ovata, aka Jade
2. Open Letter to First Time Bonsai Owners (next week)
1. How to assess a bonsai's immediate care needs
2. More recent pictures from pruning these historic Ficus bonsai.

In Vivo Bonsai Announcements/Upcoming Events in Columbus

• April 12, 2025 - 4TH Annual Columbus Bonsai Society INVASIVE Alliance / Yamadori Study Group Dig. I am organizing this free event for the 4th year in a row. As I have written about previously, come out and learn your native vs invasive plant ID, get some advice on digging trees and getting them to live, and on turning our home-grown species from wild bonsai/yamadori into successful bonsai. RSVP here by 4/11.
• April 27, 2025 - Columbus Bonsai Society Monthly meeting on Techniques for All Stages of Deciduous Development. I will be leading the discussion and presentation. All members are encouraged to bring one or more deciduous tree and think ahead on what techniques or next steps you think that tree needs for this growing season. Facebook event here.
• May 03, 2025 - Bonsai and Coffee. Intro to Indoor Bonsai Workshop at Casa Cacao Cafe in Columbus, OH hosted by yours truly. Sign up here.

After repotting and pruning on these historic, mature ficus bonsai.

13 Tips for Juniper Bonsai Styling and Care

Source material: May 19, 2024

            This week I have another post with species-specific tips - this time for juniper bonsai! These are tips from my experience working with and digging this genus, although my experience is still limited. Therefore, as with the last post on Alberta spruce, I also am incorporating here a few tips from online sources, discussions, and club presentations from other knowledgeable folks such as Kevin Faris, Hugo Zamora, Jonas Dupuich, Eric Schrader, and Julian Tsai. Check out their work if you are hungry for more juniper bonsai information! After the 13 tips, I also share a few sample juniper bonsai that Kevin and I have styled and explain how the tips we are using relate to the styling actions taken on these trees. This quick baker's dozen worth of tips is NOT meant to be exhaustive but still I hope this article gets you thinking about this unique and popular bonsai type and hopefully improves your care and styling outcomes no matter your starting point. And for those of you who consider yourself advanced in the realm of juniper bonsai, I challenge you to think of your own tips that I missed and add them to the comments! Maybe I'll revisit the subject and cite those other suggestions someday.

Sections:

1. Tips for Healthy Juniper Bonsai
1. Sunlight, Growing Environment, Yamadori/Digging Aftercare
2. Pruning, Styling
3. Tips for Juniper Aesthetics
2. Juniper Styling Examples - Tips in Action
1. Kevin's Juniperus chinensis 'shimpaku' styled during Hugo Zamora workshop
2. My Juniper procumbens Before and After also styled at the May CBS Hugo Zamora Workshop
3. Shimpaku Juniper Styled by Hugo Zamora
3. Remaining J. procumbens available for 6/29/24 workshop. Only 1 spot left!
1. Intermediate Juniper Styling Workshop Material
2. Beginner Yew Styling Workshop Material

In Vivo Bonsai / Columbus Bonsai Announcements

1. My next workshop is Saturday 6/29, Kevin Faris and I will be teaching beginner-intermediate bonsai styling and care for junipers and yews. For the intermediate level, the junipers we have are unique, aged material (20 years old+), meanwhile for the beginner level we have some nursery stock yews which are flexible to a variety of styles. Sign up and see pictures and full details here and contact me with any questions! There are only 1 spot left and observers are welcome.
2. See my yews, boxwoods, barberries, and consignment trees available in Columbus or with potential delivery to nearby states' bonsai events. Or, contact me to make an appointment at my nursery sometime and see the full and ever-changing selection of seed-grown prebonsai and local yamadori/collected material.
3. The Columbus Bonsai Society's next meeting is 7/20-7/21, our 52nd Annual Show. This year it will be held at a new venue - Chadwick Arboretum at Ohio State University near downtown Columbus. More info will be coming this week and can be found here.

A shimpaku juniper styled by Hugo Zamora in May, 2024 as a demonstration for the Columbus Bonsai Society. Read on for juniper bonsai care and styling tips!

About Barberry Species as Shrubs, Invaders, Fungal Host, and Bonsai Trees

            Barberry aesthetically makes a delightful bonsai due to its small, colorful leaves, flowers, and berries. They are frequently used in landscaping which means that they are readily available to those who keep their ears to the ground for unwanted plants to salvage like myself. Today I want to share some information on these plants, good examples of successful barberry as bonsai, and some brief comments on techniques for this species.

I am also listing some of my barberry prebonsai/yamadori for sale. Help me downsize my collection so I can focus on my PhD thesis! Pictures, prices, and delivery options in Columbus, OH, or surrounding states are listed here. I am open to hearing offers!

Sections:

1. Barberry Growth Habit
2. Barberry's Invasive Potential
3. A Disease of Concern for Barberry Bonsai - (Wheat) Black Stem Rust
4. American Barberry - Berberis canadensis - as Bonsai
5. Barberry Bonsai Technique Commentary & More Examples

Here is one stunning example of Japanese barberry bonsai by Ed van der Reek in Europe. They do get a great fall color! Source - Ed-Bonsai.blogspot.com

What to Do With Your Bonsai in Winter With Julian Tsai - Bonsai Time Podcast Ep 22

            In this episode of the Bonsai Time Podcast, we have part 1 of a winter solstice/Christmas special featuring Ryan, Kelly, Kevin, and Julian Tsai. In Part 1, we catch up with Julian regarding how he transitioned into being a full-time bonsai professional and we dive into the subject of what can we do as bonsai artists in winter and what might be risky to do in colder climates at this time of year. Stay tuned for Part 2 later this week where we will discuss the history of certain trees in traditional celebrations of the winter solstice and Christmas.

The video version is available here:

The podcast version is available here:

Simplified Protocols for Yamadori Collection, Aftercare, and Initial Bonsai Training - A Honeysuckle Raft Case Study.

            In preparation for the 2nd Annual CBS / Columbus Recreation & Parks Department Invasive Honeysuckle Yamadori [Wild Bonsai] Dig event, I wanted to put to words a very simplified protocol for how to take a freshly dug yamadori from the forest and how to begin to train it as a bonsai tree. Obviously, the speed of development varies based on the species and health of the tree and some steps may even occur at seasonally different times especially if you are in a different climate than me here in USDA Hardiness Zone 6, Ohio, USA. Noting that these exceptions are bound to hit you at some point, let this be a starting point and take it for what it's worth. To exemplify that protocol, let's follow the development of my extra large honeysuckle raft yamadori which I rescued from culling in a local Columbus park at last year's first invasive removal collaboration. You can read about our previous experience hosting that event here, and you can see other examples of renowned honeysuckle bonsai here. 

Sections:

1. Event Description - 2nd Annual Columbus Bonsai Society / Columbus Recreation & Parks Invasive Yamadori [Wild Bonsai] Dig
2. General Protocol for Temperate Deciduous Species Yamadori Collection
3. General Protocol for Yamadori Aftercare
4. General Protocol for Initial Bonsai Training - First Repot, Early Pruning, etc.
5. Honeysuckle Raft Case Study
1. Spring 2022 Digging
2. Fall 2022 Pruning
3. Spring 2023 Repotting + Pruning
6. Announcements
1. I officially applied with the state of Ohio to start a nursery. Contact me to enroll in my first workshop on Tanuki! See details here. The second workshop will be on Sunday, 4/23/23 from 12pm-3pm. Contact me if you would like to request an additional date.
2. 4/15/23 - 2nd Annual Invasive Honeysuckle Wild Bonsai Dig with CBS and Columbus Recreation & Parks @ Castro Park. This is a free event. Sign up here.
3. 4/16/223 - Columbus Bonsai Society Meeting - I will be presenting on the ins and outs of digging Yardadori/Yamadori/Wild Bonsai. All are welcome. See event details at www.columbusbonsai.org.
4. Seeds are available here.

My extra-large honeysuckle yamadori raft, now freshly repotted into its first training bonsai pot.

A Case Study for Applying the Water and Sugar Equations - Repotting the Risky Rose

Source material: 3/19/2021

            Hola bonsai amigos! Today is a great day because not only does your friendly neighborhood microbiologist (me!) receive his second Covid vaccine dose, but my immunized arms also come bearing another present to the bonsai community. As spring continues to march on, so too does the blog's coverage of my giant rosebush bonsai - this time the rose's latest repot reveals two fundamental equations of life to consider when manipulating bonsai or any plant.

            The "Risky Rose" was the second major repot I did this year; returning readers will recall from last week's post that this operation involved another of the largest trees in my collection - a yardadori/landscape origin rosebush turned bonsai. As discussed in the previous post, now that the tree has recovered several years after its initial transplanting endured a cross-country move and survived its first Ohio winter, our rose has definitely earned renewed attention this year. For now, I'm calling it the "Risky Rose" because it needed severe root reduction in order to change its planting angle and lift the upper half of the trunk out of the pot. Read on to understand the motivations behind this bold action, including what steps were taken to ensure this radical root reduction could be done safely.

            As with my last repotting post, "Repotting The Monster Mulberry - Revisiting the Basics", this repot was done with the help of my friend in the Columbus Bonsai Society, Kevin. Thanks, Kevin!

Sections

1. History of the Risky Rose (Last post)
2. Current Repot Operation
   2A. Repotting in Action
   2B. The Water Equation
   2C. The Sugar Equation
   2D. Applying the Water and Sugar Equations
3.  Blog Announcements

Here you can see a teaser of the rose's chunky trunk in its new position after its 2021 repot.