Brain Cactus for Sale | Mammillaria wildii cristata – CactusWarehouse
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Mammillaria wildii cristata Brain cactus

  • Hand-picked cactus icon Hand-picked, packed, and shipped on Mondays, Tuesdays & Thursdays
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$274.95
Size

Plant facts

SunlightFull sun
WaterLow water. Only when soil is fully dry
USDA zones9, 10, 11, hardy to about 20F
Care levelEasy Care
Mature sizeA crested (fan/brain-form) cactus that grows in undulating folds rather than upright stems. Forms low mounded clumps up to about 6 in tall and roughly 12 in wide, expanding into tangled brain-like mounds over the years. Stays compact and ideal for pots.
Time to matureSlow-growing. The crested form develops and mounds up gradually over several years.
LivesOutdoors
Ships asRooted plant, bare root, no pot or soil
What to expect in the box

Your plant is hand-picked, wrapped in protective kraft paper, and shipped on Mondays, Tuesdays, and Thursdays. It arrives bare root: a fully rooted plant shipped without a pot or soil, ready to plant right away.

Minor scars or pitting on the skin are normal for hardgrown cacti. Any discoloration near the base is from previous healthy growth in soil and is not a sign of damage.

Cacti can look slightly dull after a few days in a dark box. Color returns within a week or two of bright light. If your area drops below 40F, we recommend adding a heat pack to your order, as one is not automatically included.

The Mammillaria wildii cristata, commonly called the Brain Cactus, is known for its crested form that grows in tight, undulating waves that twist and curl like the folds of a brain. Each plant is unique, with no two growing exactly alike. Despite its wild form, this cactus is hardy and easygoing, thriving in full sun with very little water. It occasionally produces small pink or purple flowers tucked between its folds.

Please Note: Our collection includes bare-root WITHOUT any soil or pot and cuttings. Some of our plants may have minor scars, yet each one is guaranteed to arrive in optimal health and excellent condition. Additionally, any discoloration at the base of the cactus, particularly in rooted variants, is a typical result of previous planting in soil. 

Cold Weather Warning

If your area drops below 40°F during the colder months, we highly recommend adding a heat pack to your order, as we don’t automatically include one. This helps keep your plants safe in transit. 🌡️❄️

👉 [Buy Heat Packs Here]

Product Details

Benefits

✔ Rare crested form with sculptural, brain-like growth
✔ Every specimen grows in a completely unique shape
✔ Compact size, perfect for pots and display shelves
✔ Blooms small pink or purple flowers in the spring
✔ Low-maintenance and drought-tolerant

Cactus Care

✔ After Arrival: Allow your Brain Cactus to rest in a shaded, dry space for 3–5 days before planting. Use a well-draining cactus mix with added pumice or perlite. Avoid watering the first week to prevent transplant stress.
✔ Long-Term Care: Place in full sun or bright indirect light. Water deeply only when the soil is bone dry—about every 2–3 weeks in summer and once a month or less in winter. Overwatering is the biggest risk.
✔ Hardiness Zone: 9–11. Protect from frost below 25°F—move indoors or cover during cold spells.

Shipping & Guarantee

At Cactus Warehouse, we take pride in shipping the healthiest, hand-selected cacti straight from our nursery in Fallbrook, CA. All our cacti are hardgrown and carefully checked to ensure you get the best.

  • Schedule: Orders ship on Mondays, Tuesdays, and Thursdays.
  • Delivery Time: Most orders arrive within 3–5 business days once shipped.
  • Rates: Free shipping on orders $99+ (Continental US). Orders under $99 ship for a flat $9.95.
  • Carriers: We ship via UPS and USPS with full tracking

  • Safe Packaging: Each cactus is wrapped in protective kraft paper to reduce movement. During cold weather, you have the option to add heat packs to keep your plants safe.
  • Care Instructions: Every package includes simple, step-by-step care instructions so you know exactly what to do after arrival.
  • 30-Day Happiness Guarantee: If your cactus doesn’t arrive healthy and happy, we’ll make it right. Email us at info@cactuswarehouse.com and we’ll take care of you.

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Plants Picked With Love

Hi, we're Lisa and Takashi! We started Cactus Warehouse because we care about creating a great experience for people like you.

We know how important it is to get a cactus that's healthy and ready to thrive. Thats's why we take the time to choose and pack each plant with care, making sure it arrives in perfect shape.

When you shop with us, you're supporting a small business that truly cares about its customers. Thank you for trusting us to bring something special into your home!