Mammillaria Elongata (Irish Red)

Mammillaria elongata ‘Irish Red’
Common Name: Irish Red Cactus

Mammillaria elongata ‘Irish Red’ is a fiery and compact variety of the classic Ladyfinger Cactus, prized for its brilliant copper to reddish-bronze spines that glow under bright light. Native to central Mexico, this variety forms tight, finger-like stems that cluster and tangle together over time, creating a beautiful, sculptural mound.

While small in stature, it’s big on impact—especially when it bursts into bloom with tiny, pale yellow to pinkish flowers that circle the tops of the stems like a crown. Easy to grow and very forgiving, this is a must-have for collectors who love vibrant color and unique texture.

☀ Light Requirements
Prefers bright light to full sun. Outdoors, give it plenty of sun for the best red coloration. Indoors, place near a south- or west-facing window or under grow lights to maintain its bold tones.

💧 Watering Needs
Water thoroughly only when soil is fully dry. Reduce watering significantly in the winter months. Always use a fast-draining cactus mix.

🌡 Temperature Tolerance
Hardy to about 25°F in dry conditions. Protect from extended frost or cold, damp soil. Add a [Heat Pack] for winter orders.

✨ Special Features
• Bold Red Spines – Striking coppery-red coloration in bright light
• Clustering Habit – Forms tight clumps perfect for pots or rock gardens
• Reliable Bloomer – Produces charming rings of soft flowers in spring

Other Common Names:
Ladyfinger Cactus ‘Irish Red’, Red Spine Mammillaria, Copper Finger Cactus

This cactus will ship bare root and will be ready to place directly in a well draining soil mix like our Custom Cactus Mix.

Photos in the listings unless otherwise specified are representative of the plant that will be sent to you.
However, Plants grow differently and each plant may vary slightly in shape, size, growth pattern, etc.
Of course, if you receive a plant that you are dissatisfied with please reach out to us. We want to make it right!

If temperatures near you are below 45℉ we highly recommend adding a Heat Pack to your order.
If temperatures where you live will be much lower than 20℉ even heat packs may not work. You may consider waiting until things warm up a bit. We know you love your plants just like we do and we wouldn't want any of them to freeze.