Mammillaria Sphaerica ( Longmamma Nipple Cactus) Plant Care Tips

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Mammillaria Sphaerica (Longmamma Nipple Cactus) Plant Care Tips

Are you a plant lover? Do you have a soft spot for cacti? If so, then you’re in for a treat! Today, we’re going to talk about the Mammillaria sphaerica, also known as the Longmamma nipple cactus.

This adorable little plant is perfect for those who want to add some unique charm to their indoor or outdoor garden.

So, let’s dive into some care tips that will ensure your Mammillaria sphaerica thrives and becomes the star of your garden!

Lighting Requirements

The Mammillaria sphaerica loves bright light but needs protection from direct sunlight during the hottest parts of the day.

A sunny windowsill or a spot near a south-facing window would be ideal.

If you decide to keep it outdoors, make sure it’s in an area with filtered sunlight or partial shade.



This little cactus has slightly different watering requirements compared to other succulents.

It prefers regular watering during its growing season (spring and summer) but requires significantly less water during its dormant period (fall and winter).

To avoid overwatering, allow the top inch of soil to dry out completely before giving it another drink.

TIP: To prevent root rot, make sure your pot has adequate drainage holes so excess water can escape.

Soil and Potting

  • The Mammillaria sphaerica loves well-draining soil that mimics its natural habitat – sandy with excellent drainage capabilities.
  • A mixture of cactus potting mix and perlite is perfect for this little beauty.
  • When repotting, choose a pot that’s slightly larger than the current one and ensure it has drainage holes.

Temperature and Humidity


The Mammillaria sphaerica thrives in temperatures between 70°F to 90°F (21°C to 32°C) during its active growing season.

However, it can tolerate temperatures down to as low as 50°F (10°C) during its dormant period.

As for humidity levels, this cactus prefers low humidity environments.

If you live in a place with high humidity, consider providing additional airflow around the plant.


Maintaining proper nutrition is crucial if you want your Mammillaria sphaerica to reach its full potential.

During the active growing season, fertilize every two weeks using a balanced liquid fertilizer diluted to half strength.

However, avoid fertilizing during its dormant period as the plant does not require additional nutrients at that time.

Pest Control

Fortunately, the Mammillaria sphaerica is relatively resistant to pests compared to other plants.

However, like any living thing, it may still encounter some unwanted visitors from time to time.

Some common pests that can affect this cactus include scale insects and mealybugs.


  • If you notice any signs of infestation such as sticky residue or tiny cotton-like balls on your plant,
    • Gently wipe them off with a cloth soaked in diluted alcohol solution,
    • Keep an eye on your cactus for recurring pests and continue treatment if necessary,
    • If the infestation becomes severe or persists despite treatment efforts,{” “}


The Mammillaria sphaerica can be propagated through various methods:

  • Offsets: This cactus produces small offsets, also known as pups.

    Carefully remove these pups from the mother plant and allow them to dry for a few days.

    Once calloused, you can pot them in well-draining soil.

  • Seeds: Collect seeds from mature fruits and sow them in a well-draining mixture.

    Keep the soil slightly moist until germination occurs.


In Summary

Caring for your Mammillaria sphaerica doesn’t have to be intimidating! Just remember to provide it with bright light, water it sparingly during its dormant period, use well-draining soil, maintain proper temperature and humidity levels, fertilize during its active growing season, keep an eye out for pests but don’t panic if they appear – they can usually be easily dealt with.

With these care tips in mind, your Longmamma nipple cactus will thrive and bring joy to your garden for years to come!

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