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Agave titanota 'Hoju'

Intermediate

Agave titanota 'Hoju'

A titanota selection with broad leaves and brown teeth. The name ('jewel') is said to refer to its ball-like habit, and it resembles Hakugei. Probably Taiwanese, but its history is unknown.

Growing Difficulty
Intermediate
Temperature
5〜40℃
Lifespan
Perennial; the flowering rosette dies and offsets carry on
Size
Titanota rosettes range from 30 to 90 cm across (little data per cultivar)
Watering
Light feeder; a little slow-release fertiliser in the growing season is enough

About

'Hoju' ('sacred jewel') is a named selection sold as Agave titanota. According to a Japanese succulent encyclopedia it has broad leaves with brown teeth, and the name seems to refer to its leaves staying closed into a ball; the author's own plant has not grown very ball-like, though, which may reflect watering. It is thought to be Taiwanese, but its history is entirely unknown. With its ball-like habit it gives an impression similar to Hakugei, but the two are easy to tell apart by the teeth: Hakugei has a thin white margin and small white teeth, whereas Hoju's teeth are brown. Specialist nurseries sometimes sell it in 'titanota classics' sets alongside Hakugei and Hades. Variegated plants are sold separately as Hoju Nishiki, and the romanisation varies between Hoju and Houju. Plants traded as titanota also include what has recently been described as A. oteroi, and the classification is not settled. It is not common in Japan and appears only occasionally at specialist nurseries. To keep a rounded shape, grow it hard with strong light, good airflow and sparing water.

Size of the Agave titanota 'Hoju'

The Agave titanota 'Hoju' grows to Titanota rosettes range from 30 to 90 cm across (little data per cultivar).

Basic Info

Origin

Named selection, probably Taiwanese but of unknown history (A. titanota is native to Oaxaca, Mexico)

Lifespan

Perennial; the flowering rosette dies and offsets carry on

Size

Titanota rosettes range from 30 to 90 cm across (little data per cultivar)

Temperature

5〜40℃

Watering & Fertilizer

Light feeder; a little slow-release fertiliser in the growing season is enough

Growing Tips

Light & Placement

Likes strong light and airflow; in poor light the leaves stretch, so indoors use an LED grow light and a fan.

Watering

Dislikes summer humidity, so keep on the dry side; in winter water about once a month.

Temperature & Winter

Tender; about 0°C is the minimum it survives. Winter it indoors in a sunny spot.

Soil & Repotting

Free-draining mix; divide offsets to propagate.

Notes

There is no documented history and the spelling varies (Hoju/Houju); check for brown teeth and a ball-like habit on the actual plant.

TitanotaBrown teethBall-shaped

Agave titanota 'Hoju' FAQ

QWhat is the growing difficulty level for Agave titanota 'Hoju'?
A

Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.

QHow large does Agave titanota 'Hoju' get?
A

The mature size of Agave titanota 'Hoju' is Titanota rosettes range from 30 to 90 cm across (little data per cultivar). This may vary slightly depending on cultivation environment and individual differences.

QHow should I water and fertilize Agave titanota 'Hoju'?
A

Agave titanota 'Hoju': watering & fertilizer — Light feeder; a little slow-release fertiliser in the growing season is enough. Aim for appropriate frequency and amount.

QWhat is the typical price for Agave titanota 'Hoju'?
A

The price of Agave titanota 'Hoju' varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.

Last updated: September 23, 2026

References & Sources

Taxonomy & Authority

Accepted name: Agave titanota 'Hoju' Gentry

Authority databases: GBIF · GBIF · GBIF · POWO

Nomenclature follows global taxonomic authority databases.

Regulations & Conservation Status

Not CITES-listed

Not listed in the CITES Appendices, and not designated as an Invasive Alien Species or Uncategorized Alien Species under Japanese law. It is not a registered variety under Japan's Plant Variety Protection and Seed Act (no Agave varieties were registered as of September 2026).

Sources: Species+ (CITES) query for Agave titanota: not listed / Ministry of the Environment, list of Invasive Alien Species (no Agave listed) / MAFF plant variety registration database (no registered Agave varieties)

Regulations may change. Always verify the latest information with the relevant authorities.

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