# Astrophytum Myriostigma Tricostatum

## Astrophytum Myriostigma Tricostatum

**[Astrophytum myriostigma](https://seedlingsindia.in) 'T[ricostatum'](https://seedlingsindia.com)** is a rare and highly prized three-ribbed form of the popular **Bishop's Cap Cactus**. Native to **Mexico**, this distinctive cultivar is admired for its perfectly symmetrical triangular shape, spineless body, and attractive silvery-white speckling. Its geometric form and slow growth make it a favorite among cactus collectors.

### Key Features

-   **Growth Type:** Solitary, spineless cactus
-   **Stem:** Globular when young, becoming short-columnar with age
-   **Ribs:** Typically **three prominent ribs**, creating a striking triangular profile
-   **Surface:** Covered with fine white trichomes (flecks) that give the cactus a frosted appearance
-   **Spines:** None
-   **Flowers:** Large, silky **yellow flowers** with a pale center, blooming from spring through summer
-   **Size:** Grows **15–30 cm (6–12 inches)** tall and **10–20 cm (4–8 inches)** wide

### Distinctive Characteristics

-   Rare **three-ribbed (Tricostatum)** growth form
-   Elegant architectural symmetry
-   Spineless body, making it easy to handle
-   Attractive silvery coating that helps protect the plant from intense sunlight

### Growing Conditions

**Light:**  
Prefers **bright light to full sun**. Gradually acclimate plants to strong sunlight to prevent scorching.

**Soil:**  
Requires a **very well-draining cactus mix**, such as:

-   50% cactus soil
-   25% pumice or perlite
-   25% coarse sand or grit

**Watering:**

-   Water thoroughly during the growing season.
-   Allow the soil to dry completely between waterings.
-   Keep almost dry during winter dormancy.

**Temperature:**

-   Ideal range: **18–30°C**
-   Protect from frost and prolonged temperatures below **5°C**.

### Flowering

Mature plants produce beautiful **yellow, daisy-like flowers** from the crown during late spring and summer. Flowering is encouraged by:

-   Bright sunlight
-   Cool, dry winter dormancy
-   Proper watering during the active growing season

### Care Tips

-   Use a **clay pot** to improve drainage and airflow.
-   Avoid overwatering, particularly during winter.
-   Feed monthly with a diluted cactus fertilizer during active growth.
-   Repot every 2–3 years as needed.

### Propagation

-   **Seeds:** The primary method of propagation.
-   The **Tricostatum** form may not always come true from seed, making well-formed specimens especially valuable.

### Uses

-   Premium collector's cactus
-   Architectural container specimen
-   Rock and succulent gardens
-   Indoor displays with bright light
-   Exhibition-quality cactus collections

## Details

- **Price:** 649.0 INR
- **Vendor:** Seedlings India
- **Type:** Cactus
- **Tags:** astrophytum, Astrophytum Myriostigma Tricostatum, bishops cap, collector grade, rare plants, succulent, tricostatum, ultra rare

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 649.00 INR | In stock |

## Images

- Astrophytum Myriostigma Tricostatum
- Astrophytum Myriostigma Tricostatum
- Astrophytum Myriostigma Tricostatum
- Astrophytum Myriostigma Tricostatum

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> Source: [Seedlings India](https://seedlingsindia.in/products/astrophytum-myriostigma-tricostatum)
> Updated: 2026-07-08