I tried a cartridge of Seitz-Kreuznach Palm Green in a Kaweco Sport with broad and fine nibs.
What really stands out about Palm Green is the hue. Despite the name, Palm Green does not really bring to mind the tropics or palm leaves. Instead, it reminds me of the color of minty mouthwash. It is a very blue green, but also fairly unsaturated.
It is really hard to show this color compared to other greens. Here is an attempt, with, from left to right, Diamine Tropical Green, Pilot Iroshizuku Shin-ryoku and then Seitz-Kreuznach Palm Green.
Diamine Tropical Green, although a blue leaning green, is greener and darker in color, and a more classic green color. Shin-ryoku is more blue, reminding me of America’s Pacific Northwest or a Juniper shrub.
Seitz-Kreuznach Palm Green is closer in color to Shin-ryoku but the feeling is quite different. Palm Green is softer and almost vintage in feel.
Palm Green’s shading is noticeable, perhaps because it almost seems two-tone, with both light blue and green. That comes through in any of the closeup photos.
Here is a small writing comparison bracketed with everyday blue and black inks, to better show the color’s unusual hue.
In the pen the ink proved to be well-behaved. It is lighter in color, so I think it benefited from the broad nib as opposed to the fine nib, which may have been too fine or dry for this ink.
Feathering was under control, and there was no showthrough or bleedthrough.
Palm Green is not water resistant, but quite easy to clean. Contact with water caused it to nearly vanish even from absorbent paper.
Paper towel chromatography shows how much blue is in this green ink.
Living outside the EU, I order Seitz-Kreuznach products from Seitz Global, which sells Seitz-Kreuznach ink in 100 ml glass bottles for $9.90 and in 20 ml glass bottles for $3.25. Short international cartridges are $2.19 for eight or $3.62 for 14. George Seitz kindly added this cartridge to an order I placed, so I could sample the ink, before they started selling the smaller bottles.
Fountain Pen Follies 
1. I don’t have Vert Reseda. One of the few J. Herbin inks that’s escaped my clutches. I don’t use that particular color range very much — our climate is too extreme, and somehow it never feels right.
2. Yes! Isn’t that great? I actually mentioned it to him, so I was so thrilled to see that he added the smaller bottles. It’s a really great thing for people like us who like a variety of ink. S-K is really fantastic and responsive. Nice inks, too, if you ask me.
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Palm Green kind of reminds me of Vert Reseda – especially in the writing sample. Do you have any to compare? I had it for weeks in a BB Kaweco sport, but I finished it just days ago! I mostly used it as an accent ink too, so I don’t really have a clean sample to share
Also, wow, I didn’t realize S-K did 20ml bottles! Whee, I’m sold! I love small bottles, samples aren’t enough when you like the ink, but between 10 and 20 ml is *perfect*. SO happy ink manufacturers seem to be turning to smaller bottles 🙂
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