A variegated Agave desmetiana with the grandiose name "Galactic Traveller." Its silvery blue leaves are strikingly bordered with bright lemon yellow—a look that keen observers might recognize. That's right, this is the same plant as A. 'Blue Moon' . To give you the conclusion upfront, there’s no definitive proof that Blue Moon and Galactic Traveller are exactly the same, but given how visually identical they are—and how unlikely it is for this unique look to pop up independently elsewhere—it's safe to say they're probably one and the same.
San Marcos Growers in the United States notes that the "origin is unconfirmed, but it appears to have first surfaced in the Australian succulent market around 2016," also pointing out that the word "traveller" uses the double-l British English spelling (which is also standard in Australian English) as a hint. Their specimen was obtained in 2021 via Krock Plants in Santa Barbara. So: “Australia → America.” On the other hand, in Japan there’s a record of Washihara getting seedlings as early as 2013 (according to him), yet both Blue Moon and Ginga Tabibito (Galactic Traveller) were "names that just appeared along the way" and have no clear connection to Australia. Here’s another clue: Washihara’s full name is Tabito Washihara (Tabito means traveler in Japanese). It’s hard to imagine the name "Galactic Traveller" being randomly attached; it suggests there’s some link from Washihara to China (though Washihara himself says "Galactic Traveller" is kind of embarrassing and avoids using it). So, from Washihara to China. If the Chinese name was then translated into British English, that would likely have happened in Australia, so: “China → Australia.” All of this is just speculation, but maybe Washihara’s clone traveled to China to become “Ginga Tabibito” (Galactic Traveller in Japanese), and from there made its way to Australia to become "Galactic Traveller."
Since its actual identity is the same as A. 'Blue Moon' , you’ll find details on care, appearance, and background on that page. If you come across a plant labeled "Galactic Traveller" at a shop, just remember: it’s the same as Ginga Tabibito and Blue Moon.



| Season Type | Summer |
|---|---|
| Sun Exposure | Full Sun |
| Hardiness | -5℃ / 23℉ |
| Blooming Season | - |
Gray display shows general information for Agave.
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アメリカの San Marcos Growers は「起源は未確認だが、2016年ごろオーストラリアの多肉市場に最初に現れたらしい」とし、そのヒントとして "traveller" がイギリス英語式の綴り(l が2つ)であることを挙げています(オーストラリア英語はイギリス式)。彼らが自分の株を手にしたのは2021年、サンタバーバラの Krock Plants 経由。なるほど「オーストラリア→アメリカ」。一方で日本では、鷲原旅人さんが2013年頃にはもう小苗を入手していた記録があります(本人談)が、ブルームーンも銀河旅人も「いつのまにか付けられていた名前」であってオーストラリアにつながりません。もう1つのヒントは。その鷲原さんのフルネームは鷲原旅人(Washihara, Tabito)だということ。「銀河旅人」という名前が偶然つけられたとは考えにくく、鷲原さんから中国に何かリンクがあることが伺えます(鷲原さんご自身は「銀河旅人はハズい」と言ってこの名前を使いたがっていませんが)。つまり「鷲原さん→中国」。中国語名がイギリス英語で翻訳されたとすればその現場はオーストラリアだから「中国→オーストラリア」。つまり、完全な推測ですけど、この鷲原さんのクローンが中国にわたり「銀河旅人」に、オーストラリアにわたって「Galactic Traveller」になったのかなーと……。
実体は ブルームーン A. 'Blue Moon' と同じものなので、姿・栽培・素性の詳しい話はそちらのページに譲ります。お店で「Galactic Traveller」の札を見かけたら、それは銀河旅人でありブルームーンでもある、ということだけ覚えておけば大丈夫かと思います。
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