This is the blog of Henry Kuppen (1964), passionate Arboricultural Consultant with over 40 years of professional experience in managing trees in the urban environment. I work as Tree Ambassador at Terra Nostra, Knowlegde Center for Trees and Soils. As accomplished public speaker, I share my knowledge by giving talks and workshops to other professionals around the world.
Almost daily I feel inspired by the appearance of trees and the flexibility of nature. My work is characterized by looking through the eyes of an enthusiast, making links with scientific knowledge and combining it with the capriciousness of practical experiences. This blog gives both professionals and tree enthusiasts an impression of how to look at trees in order to respect them more and understand them better.
07-01-2026 | ontwerpleeftijd vergroenen nazorg aanplant | 0 views
We’re planting so many trees these days you’d think greening would sort itself out. On paper, it looks perfect, ambitions, numbers, targets,...
04-09-2025 | Boomkroonvolume 3-30-300 regel | 0 views
Slogans can be incredibly powerful, but they can also be overused to the point where their impact is lost. Just do it! Do you know which company...
05-09-2024 | 0 views
The urban environment is hostile to trees. Often, designs require a range of artificial measures to get trees to grow. Does the result justify...
05-04-2024 | pavement lifting verhardingsopdruk | 0 views
As a tree you have to make permanent concessions to the urban environment. Where you have found a nice place for the next hundreds of years, a...
12-01-2024 | stutten | 0 views
We've been doing it for years, propping up trees in the most wonderful ways. The reason is usually that we see a risk that part of a tree will...
29-11-2023 | Kevyn Wightman Sooty bark disease Ash dieback Oak Processionary Moth essentaksterfte Roetschorsziekte eikenprocessierups Arboricultural Association | 0 views
Lured by the opportunity of a trip billed for those with “The Explorers Mindset,” intrepid tree officers and commercial arborists made the short...
25-09-2023 | 0 views
Trees are so much more than their appearance or as parts of an ecosystem. Every tree has its own story. That story makes a tree valuable in...
29-05-2023 | Agrilus planipennis essenprachtkever | 0 views
The emerald ash borer beetle is an Asian insect causing extensive death of ash trees in the United States since 2002. Now, over 20 years later,...
16-04-2023 | knotskoppen Zweeloo Prieellinde Vincent van Gogh | 0 views
The Vincent van Gogh pleached lime in the artists village of Zweeloo in Drenthe is topiary of the highest order. Firstly as it was painted by...
28-01-2023 | #Matthijs Schouten #van Ego naar Eco | 0 views
In the tree world people are becoming more aware of the importance of trees. The only thing missing is the courage to act when they get older....
04-11-2022 | sunburn 3-30-300 regel weersextremen zonnebrand natuurwaarde boomchirurgie Plaktivisme | 0 views
Did you also see the climate activist on Dutch Jinek TV-talkshow who glued themselves to the table during the live show? I did, and my first...
23-08-2022 | Bowthorpe oak eik | 0 views
Tree tours from the Netherlands to England are organised because there they do have really old veteran trees. Our oldest tree in the...
27-06-2022 | 0 views
I’m convinced that trees have their own personalities, something immeasurable that you need to experience. Thankfully I can give my biased...
18-05-2022 | woestijn Jean-Francois Gauthier grazen geiten | 0 views
Wonderful insights appear when your mind is clear and you are immersed in a completely different environment. My journey into the desert of...
12-02-2022 | De Nationale Bomen Top 50 Nationale Bomenbank 50 jarig jubileum | 0 views
We tend to have a protective approach towards our national monuments and brag about their UNESCO status. But are all monuments taken with the...
30-09-2021 | Biochar | 0 views
We are creatures of habit and often do not take all the opportunities that we have. Internationally the benefits of biochar have been known...
24-08-2021 | delayed incompatibility enten zilverlinde iep uitgestelde onverenigbaarheid | 0 views
Grafting is not only an essential technique in the fruit-tree cultivation, it is also widely used on urban tree landscaping. The art of fusing two...
01-04-2021 | Oak Processionary Moth Kenniscentrum Eikenprocessierups eikenprocessierups | 0 views
This year the first oak processionary caterpillars hatched from their eggs on April 1 st in the Netherlands, and this is no joke! Even mentioned...
25-02-2021 | Roetschorsziekte | 0 views
Since 2014, we have become more and more aware of the presence of sooty bark disease on maple trees in both Belgium and the Netherlands. In 2020,...
24-01-2021 | Tree surgery Kroezeboom European Tree Technician European Tree Worker boomchirurgie | 0 views
The term “tree surgeon” is hardly used in the Netherlands anymore; over the years it has transformed into “tree worker”. But not only the title of...
29-11-2020 | natuurwaarde winterklaar #laatzeliggen | 0 views
It is a well-known fact that we need to take good care of our environment. When this doesn’t go as planned, it is easy to point at others. I dare...
28-10-2020 | Vincent van Gogh Prieellinde Etagelinde Moeierboom | 0 views
The Moeierboom of Etten-Leur in the province Noord Brabant has recently been chosen as the true winner of the Tree of the Year contest in the...
29-09-2020 | 0 views
Several governments are proudly announcing their plans on planting thousands, even millions of trees in urban surroundings. These initiatives...
09-08-2020 | Boskoop Foute bomen | 0 views
We can hardly categorize any tree as ‘bad’. However, I feel the need to express that some tree choices definitely go the wrong way without giving...
14-07-2020 | Kring Praktiserende Boomverzorgers zonnebrand | 0 views
The fact that our climate is changing is quite clear by now. Be a climate change believer or not, let me warn you that we must increasingly...
26-05-2020 | acceptatie fout geprogrammeerd eikenprocessierups | 0 views
There is something not fully coherent when we talk about diseases that do not occur in humans. Somehow we are programmed to eradicate those pests...
13-05-2020 | Oudste boom Duitsland Tanzlinde Schenklengsfeld | 0 views
I truly hope that the followers of this series of blogs enjoy pleached trees as much as I do. After three very special pleached trees, it is high...
23-04-2020 | lindebast enten Tanzlinde | 0 views
This time I introduce a "1000-year-old" pleached tree within the "Trees to make you happy" series. Trees are categorized as "1000-year-old" trees...
07-04-2020 | Stufenlinde Grettstadt | 0 views
In the upcoming period I will try to provide an extra shot of vitamins to counterbalance the extraordinary times we live in at the moment by...
23-03-2020 | Tanzlinde Peesten | 0 views
In my blog I usually reflect back on my working routine and on trendy tree-related topics. Given the current coronavirus crisis though, everything...
29-02-2020 | IYPH 2020 Kew Gardens Prince Charles | 0 views
Did you know that the United Nations declared 2020 as the International Year of Plant Health (IYPH 2020)? It may be something hard to relate to....
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