Agave filifera 'Shiraito-no-Ohi'

Agave filifera 'Shiraito-no-Ohi' key facts

Growing Difficulty

Beginner-friendly

Lifespan

Perennial; the flowering rosette dies and offsets take over

Size

Little is published on plants sold under this name (A. filifera rosettes reach about 30 cm tall)

Watering

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

Light & Placement

Full sun; in poor light the leaves stretch and filaments are fewer.

Watering

Water only after the mix is completely dry; a lean regime keeps it compact.

Temperature & Winter

A US grower rates A. filifera to about -7 to -9°C; data for plants under this name are scarce, so avoid hard frost.

Soil & Repotting

Use a free-draining mix; divide offsets to propagate.

Notes

Sold under both filifera and schidigera; judge by leaf width and filaments rather than the label.

About Agave filifera 'Shiraito-no-Ohi'

Agave filifera 'Shiraito-no-Ohi' is a filifera-group agave with fine white filaments curling from its leaf edges. Easy to grow even for beginners, it develops more filaments as the plant matures. Here's what to know before you start growing one.

7 things to know before growing Agave filifera 'Shiraito-no-Ohi'

1. 1Bright, Airy Placement

   This agave thrives in bright light and good airflow, so an outdoor spot or a sunny windowsill works well — plenty of sun also helps bring out the white markings on the leaves. Good ventilation reduces the risk of rot from trapped moisture.

2. 2Water Sparingly

   Like most agaves, it stores water in its fleshy leaves, so it only needs watering once the soil has dried out completely. Cut back further during cooler months to avoid root rot.

3. 3Use Well-Draining Soil

   Because it dislikes staying wet, a commercial succulent or cactus mix works best. Adding pumice or similar drainage material at the bottom of the pot helps prevent water from pooling around the roots.

4. 4Repot Before It Gets Rootbound

   Growth slows once roots fill the pot, so repotting into a slightly larger container every few years keeps the plant growing steadily. It's best to repot just before the plant enters its more active growth period.

5. 5Keep It Out of Hard Frost

   The typical Agave filifera is said to tolerate roughly -7 to -9°C, but there is little information on the cold hardiness of plants sold as 'Shiraito-no-Ohi', so it's safest to keep them out of hard frost. In frost-prone areas, move the plant to a bright spot indoors or somewhere sheltered from frost for the winter. Watering less and keeping the soil on the dry side also helps prevent damage from cold and excess moisture.

6. 6Choose Plants by Filament Condition

   Since the defining feature of 'Shiraito-no-Ohi' is the white filaments along the leaf edges, look for a plant where the filaments are intact and well-formed. Even a small plant is worth choosing, since filaments increase in number as it continues to grow.

7. 7It Renews Itself Through Offsets

   After flowering, the main rosette will die back, but the plant leaves behind offsets at its base to carry on. Once these offsets have grown enough, they can be separated and potted individually.

Frequently asked questions about Agave filifera 'Shiraito-no-Ohi'

Q.Is it easy to grow for beginners?

A.Yes — Agave filifera 'Shiraito-no-Ohi' is generally considered an easy variety for beginners. As long as you give it enough sun and well-draining soil, it doesn't require much special care.

Q.How big does it typically grow?

A.There isn't much specific data on the size of plants sold under this name, but the closely related filifera type typically reaches around 30 cm in height per plant. The number of filaments also increases as the plant matures.

Q.What happens to the plant after it flowers?

A.Agaves are perennial, but the individual rosette that flowers will die back afterward. The plant continues on through offsets that form at its base, so the plant lives on even as that rosette is lost.

Q.What are the white thread-like strands on the leaves?

A.Those are called filaments, a fibrous feature common to schidigera (filifera) group agaves. As the plant grows, more filaments develop, giving it an increasingly full appearance.

Q.Should it be kept outdoors or indoors?

A.It does best with plenty of sun and good airflow, so an outdoor spot or a bright windowsill is ideal. Bringing it indoors when temperatures drop is recommended to protect it from cold.

Handy Growing Tools for Agave filifera 'Shiraito-no-Ohi'

Learn more about Agave filifera 'Shiraito-no-Ohi' in the encyclopedia

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