Mammillaria spinosissima Red Headed Irishman

Red Headed Irishman: A Crown of Warm-Colored Spines

Add bold texture with Mammillaria spinosissima 'Red Headed Irishman'. Dense spines cover its rounded-to-upright green stem, with warm reddish tones giving this little cactus plenty of character.

• 🌵 Dense patterned spines create a striking textured surface
• 🧡 Reddish central spines add warmth among paler bristles
• 🌱 Upright growth becomes more cylindrical with age
• 🌸 Pink flowers may form near the top of mature plants
• 🪴 Sculptural shape makes a lovely solo cactus display

Give it a bright spot and a simple pot to show off its spines. Use cactus-handling tools rather than bare hands.

Care Tips

Light: Provide bright light with gentle direct sun. Acclimate gradually and shelter from harsh afternoon sun.

Water: Let the mix dry before watering thoroughly and draining. Keep much drier during a cool winter rest.

Soil: Use a very freely draining, gritty cactus mix.

Potting: Choose a pot with drainage holes and repot when the roots need more room.

Humidity: Provide good airflow and avoid persistently damp foliage.

Temperature: Protect from frost and cold, wet conditions.

Shipping & Handling

• Most plants are shipped bare roots without the pot and soil, with the following exceptions:
• Some plants shown in 2" pots - see more info
• Plants that require soil to stay healthy during transit - see more info
• We commit to shipping bare roots, which requires more time and labor, and provide excellent quality and service to our customers - see Benefits of Shipping Bare Roots
• You will receive a very similar plant to the one shown in the photos; shape and color may vary
• Ship within USA & its outlying territories only
• Please visit Order Processing & Shipping info page for additional details
  

Care Instructions

Please visit our Succulent Care info page for more details.

To ensure the health of succulents, it is important to plant them in porous, well-draining soil. Succulents require little watering, but don't like to sit in wet soil. To create an adequate cactus mix, simply add pumice, perlite, or grit to cactus soil to provide the proper drainage.

Allow the soil to dry to the level recommended in the Care Tips above before watering again. Always drain excess water.

Weather Conditions

• When ordering, be mindful that living succulents can freeze. If you live in an area that is below 40°F, please consider purchasing plant until the weather is more suitable.
• Shipping Warmer: 72+ Hours Heat Packs available at my store for $2.00 each

Keywords: Mammillaria spinosissima, Red Headed Irishman, red spine cactus