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Cactus · Cultivar

Frailea castanea ‘Obscura’

Parent species: Frailea castanea

A trade form of Frailea castanea (formerly Frailea asterioides) sold as 'obscura'; it is not a validly described variety. The species ranges from southern Brazil (Rio Grande do Sul) to northern Uruguay and north-eastern Argentina on rocky outcrops in pampa grassland; it has a flattened, chestnut-brown body no more than 4–5 cm across with tiny black spines pressed downwards. Like most Fraileas, its flowers often set seed without ever opening (cleistogamy).

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Botanical fact sheet

Frailea castanea ‘Obscura’

⚙ Automatic base data
Taxonomy
Family: Cactaceae · Genus: Frailea1
Synonyms
1 synonyms
  • Frailea asteroides “obscura”

Still missing: plant type, native distribution, natural habitat, height / growth form, flowering period, growth & dormancy period.

Sources (1)
  1. GBIF Backbone Taxonomy – Frailea · Scientific name · CC BY 4.0
Community knowledge

Tips & experience from members

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Real data

How members water it

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Care guidelines

How it thrives

Partly general data for the genus Frailea
Waterlowparent species data
Lightfull sunparent species data
Humiditylowgeneral genus data
Min. temperature8 °Cparent species data
Dry winter rest · general genus dataDifficulty: ●●○○○ · general genus data✓ Not known to be toxic · general genus data

No monthly schedule is shown because cultivar-/species-level data is not yet sufficient. The general values above are guidance only.

Frailea tip: Its flowers often stay closed yet still set fruit (self-pollinating) – seeds sow easily.

⚠ Pets & children · genus Frailea
Not known to be toxic 🐱 🐶 🧒details →
At a glance

Frailea castanea ‘Obscura’ – what to know

Frailea castanea ‘Obscura’ is a cultivar of Frailea castanea (Cactaceae). Care guidelines: light: full sun; water: low; min. 8 °C. One Perfect Plants Club member grows it (1 photos). It is not known to be toxic to cats or dogs.

Frequently asked questions

How often should I water Frailea castanea ‘Obscura’?

Sparingly: let the soil dry out completely between waterings, and water even less in winter.

How much light does Frailea castanea ‘Obscura’ need?

It needs plenty of direct sun – the sunniest window, or outdoors in summer, suits it best.

How cold can Frailea castanea ‘Obscura’ get?

Keep it above 8 °C – it is frost-tender and needs a frost-free spot in winter.

Is Frailea castanea ‘Obscura’ toxic to cats and dogs?

It is not known to be toxic to cats or dogs.

When does Frailea castanea ‘Obscura’ flower?

Typical flowering time: May, June, July.

Community intelligence

What members’ data shows

When does it really bloom?

No blooms logged yet. If yours flowers, your data will be the first!

Average watering interval

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Conversation

Questions about this species

Same genus

Frailea

Data sources: GBIF.org – Frailea (CC BY 4.0) · Care data is for guidance only.

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