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Old Lady Cactus

5.0 out of 5 (4 experiences)

Survivor

Fast grower

Also known as

Mammillaria hahniaia

Taxonomy

Scientific name

Mammillaria hahniana

Genus

Mammillaria

Family

Cactaceae

Order

Caryophyllales

How to care for Old Lady Cactus

💦 Water

How often to water your Old Lady Cactus

Old Lady Cactus needs 0.5 cups of water every 12 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every
12

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Old Lady Cactus in your home

Old Lady Cactus love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Old Lady Cactus does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Old Lady Cactus in your home 🏡.

🪴 Nutrients

How to fertilize Old Lady Cactus

Nutrient, fertilizer, and repotting needs for Old Lady Cactus: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Old Lady Cactus after it doubles in size or once a year—whichever comes first.

Browse #Mammillaria

💡 FAQs

⭐ Difficulty Level

Old Lady Cactus is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Benefits of Growing Old Lady Cactus →

Common Old Lady Cactus Problems →

💦 Water Needs

Old Lady Cactus thrives in dry soil and should be watered sparingly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Old Lady Cactus Water Frequency →

Old Lady Cactus Root Rot →

☀️ Sunlight Needs

Old Lady Cactus requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Old Lady Cactus Light Requirements →

Old Lady Cactus Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Old Lady Cactus is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.

💨 Humidity

Old Lady Cactus enjoys lots of humidity. Provide humidity for your plant by watering regularly and thoroughly, since plants absorb most water through their root system rather than their leaves. They may also benefit from being placed next to a humidifier.

Old Lady Cactus Humidity Needs →

🪴 Soil

Old Lady Cactus is very sensitive to wet soil, so choose a potting soil that drains very well and doesn’t retain too much moisture. A good soil will have lots of perlite or vermiculite for drainage and some organic matter for nutrition. A few handfuls of perlite added to regular store-bought cactus soil will do the trick!

Best Soil Mix for Old Lady Cactus →

When and How to Successfully Repot Old Lady Cactus →

💩 Fertilizer

Old Lady Cactus grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!

How Much and When to Fertilize Old Lady Cactus →

❄️ Dormancy

It’s common for Old Lady Cactus to go dormant in the wintertime and you may notice their growth slow down. Waterings should be spaced out more during this time.

🌎 Native Region

Old Lady Cactus is native to the Southwestern United States, Central America, and the Caribbean.

🌸 Flowers

Yes, you may see your Old Lady Cactus bloom with the right amount of sunlight and water.

Old Lady Cactus Flowers →

⬆️ ⬇️ Growth Pattern

Old Lady Cactus is a clumping plant, meaning new growth will emerge from the soil around the parent plant.

How and When to Prune Old Lady Cactus →

🌦️ Growing Outdoors

USDA Hardiness Zone
Old Lady Cactus can be grown outdoors in USDA Hardiness Zones 9b-11b. Find your local hardiness zone here.

Old Lady Cactus Temperature Tolerance →

🌱 Propagation

The seeds of Old Lady Cactus can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.

How to Propagate Old Lady Cactus →

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.

😖 Common Issues

Overwatering is a likely cause of issues with Old Lady Cactus. These plants are very sensitive to wet soil so if you notice your plant becoming squishy or translucent, overwatering is the likely culprit.

Cut your plant just past where the rot ends and allow it to callus over for a few days before replanting it in fresh, dry soil. Download Greg to make sure your plant never gets overwatered again!