Bishop'S-Cap

Bishop'S-Cap

Astrophytum myriostigma

Family: Cactaceae

Medium

Bishop'S-Cap (Astrophytum myriostigma) is a upright plant from the Cactaceae family. Non-toxic to pets. Moderate care needed.

Indoor & OutdoorPet Safe
Light
Direct sun
Water
Every 12 days
Size
48" tall
Difficulty
3/5

Complete Care Guide

Light Requirements

Needs several hours of unfiltered sunlight daily. South-facing windowsill or sunroom is ideal.

Watering

Very drought-tolerant. Allow soil to dry completely between waterings. Overwatering is the primary cause of death for this plant.

Typical schedule: every 12 days (adjust for season and environment).

Humidity

Tolerates dry air without issue. No special humidity measures needed — works great in air-conditioned or heated rooms.

Temperature

Keep between 5580°F (1327°C). Avoid cold drafts, heating vents, and sudden temperature changes.

Size & Growth

Mature size: approximately 48 inches tall × 44 inches wide. Growth rate is slow. Habit: upright.

Difficulty Level: 3/5

Moderate care requirements. Needs reasonably consistent watering, appropriate light, and attention to humidity. Best for someone with a few plants already.

Quick Tips

  • Water every 14 days
  • Prefers direct light
  • Humidity: low

Common Problems & Solutions

Yellowing leaves

Cause: Overwatering or sitting in waterlogged soil

Fix: Let soil dry completely before watering. Ensure pot has drainage holes. Reduce watering frequency.

Pale or leggy growth

Cause: Insufficient light — plant is stretching toward the nearest light source

Fix: Move to a brighter location. Rotate plant quarterly for even growth.

Drooping or wilting

Cause: Usually overwatering causing root rot

Fix: Check roots for rot. Reduce watering. Repot in fresh, well-draining soil if needed.

Pet Safe

Bishop'S-Cap is non-toxic and safe for households with cats and dogs. Verified against the ASPCA Toxic and Non-Toxic Plant Database.

Where to Buy

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Frequently Asked Questions

Is Bishop'S-Cap safe for cats and dogs?

Yes! Bishop'S-Cap is non-toxic to both cats and dogs according to the ASPCA. Safe to keep in homes with pets.

How often should I water Bishop'S-Cap?

Water approximately every 12 days, but always check the soil first. Very drought-tolerant. Allow soil to dry completely between waterings. Overwatering is the primary cause of death for this plant. Adjust frequency based on season — less in winter, more in summer.

How much light does Bishop'S-Cap need?

Bishop'S-Cap prefers direct sun conditions. Needs several hours of unfiltered sunlight daily. South-facing windowsill or sunroom is ideal.

How big does Bishop'S-Cap get?

Indoors, Bishop'S-Cap typically reaches about 48 inches (122 cm) tall with a spread of around 44 inches. Growth rate is slow. Size depends on pot size, light, and care.

Is Bishop'S-Cap good for beginners?

Bishop'S-Cap has a difficulty rating of 3/5, so it's best for intermediate plant parents. It needs more specific conditions to thrive.