A matte, deep green body adorned with large spines that shift in color from brown to white... but to call these merely "spines" seems almost an understatement. Are they teeth? Blades? Or perhaps wings? In honor of its commanding presence, this agave has been awarded the distinguished title of "Number One." For details about other variations of Titanota, see A. titanota , and for academic explorations on Titanota and Oteroi, please refer to A. oteroi .
| Season Type | Summer |
|---|---|
| Sun Exposure | Full Sun |
| Hardiness | -3℃ / 27℉ |
| Blooming Season | - |
Gray display shows general information for Agave.
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With its broad, thick leaves, this cultivar may resemble the Butterfly Agave A. potatorum , but it is distinguished by its astonishingly robust and dramatic spines, projecting a bold and powerful form—this is the famous "Number One."
Interestingly, the label "Number One" predates "Titanota" itself. Back when neither the name "Titanota" nor its true origin were well known—in the 1980s and 1990s—a mysterious, impressively fierce Agave arrived in Japan and received its first Japanese nickname: "Number One."
The name "Titanota" was assigned about a decade later (for further twists regarding whether it might actually be Oteroi, see A. oteroi ), and "Number One" became recognized as one of the horticultural forms of Titanota.
Because this "Number One" entered the Tokyo University of Agriculture's Breeding Research Institute (Tokyo Nōdai), it is also known as the "Nōdai Number One." To give it a more dignified title, "Nōdai Number One" was also given the kanji name "Ganryu" (Crag Dragon).
In short, "Number One," "Nōdai," and "Ganryu" all refer to the same unique clone; in essence, they are the same cultivar of the same species.
However, in practical usage, "Number One" usually refers to a specific garden cultivar, while "Ganryu" has come to represent Titanota's Japanese name (and not a specific cultivar). Labels like "Agave Ganryu sp. Number One" and "Number One as a specific garden variety of Ganryu" are common. Additionally, the term "Nōdai" may be casually used for similarly looking Titanota clones, contributing to some ambiguity about boundaries.
Recently, in response to this trend, you might even come across labels explicitly guaranteeing the originality, such as "The First Number One." Armed with this background knowledge, you can make your purchase with confidence.
Incidentally, the "original Number One" introduced to Nōdai can still be seen on display at the Nōdai Biolium and Izu Cactus Zoo.
You can find photos with a quick search; visually, they're very similar to the ones shown above. As is typical for Agaves, Titanota leaves tend to lose some distinctiveness as the plant matures: even though the claws remain bold, they become proportionally smaller and more subdued, and the leaves become increasingly straight.
Even among "Number One" clones, variations in form and color are mostly due to cultivation styles and environmental factors rather than genetic differences.
Mature plants can reach a diameter of 60 cm to 1 meter, but typically, growers keep them compact—around 10 to 20 cm—with dense, strikingly dramatic spines tightly woven into the shape.
Once you've potted it into a container of your target final size, avoid further repotting and focus on providing as much sunlight as possible—this is the most important tip. If you can guarantee ample sunlight, you can water and fertilize generously without concern. Conversely, if there's insufficient sunlight but you provide ample water or fertilizer, the leaves will elongate and stretch out.
Abundant watering will plump up the base and make the plant more robust. On the other hand, by restricting water, you'll develop thinner leaves that curl inward—creating an even more ominous, dramatic look. Feel free to experiment and shape it to your preference.
Since the roots grow deep, it's commonly recommended to use a pot about 1 to 2 times the height of the plant. In practice, however, shallow pots can also support healthy growth, as personal experience suggests.
低価格帯だとヘリオスの植物育成ライトが性能いいらしいし、5月下旬入荷予定になってたから早速予約した あとはアガベを選びだけど、どれもいいなぁ とりあえず姫厳竜 ナンバーワン ブラック＆ブルーまでは絞った
Agave titanota 'No.1 Nishiki' 伝市鉢に植え込んだお気に入りのアガベ！ 生長がゆっくりなのかヘタクソなのか笑 今年は葉数を増やしたい♪ https://t.co/70mpXrHOuV
2015.7.4 Sat こんなの見つけたら、買わずにはいられなかった。。 もう、当分は買いません！ (買えません！) #マクロアカンサ #八荒殿 #macroacantha #チタノータ #チタノタ #titanota #アガベナンバーワン #巌竜 #農大巌竜 #結構なお値段 #2つ買うからとちょっとまけてもらった #グランカクタス #千葉県 #印西 #アガベ #AGAVE #多肉植物 #Succulent #サボテン #cactus #観葉植物 #plants #チタノタ_ts #マクロアカンサ_ts #100post
ウォーターマークが綺麗ですなぁ。自然とは素晴らしい芸術ですなぁ。温度差についていけなく、だるい。仕事行きたくね笑 #多肉 #アガベ #アガベナンバーワン #アガベブルーグロー #アガベコロラータ #アガベ屈原の舞扇
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