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Old Lady Cactus

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Description

Old Lady Cactus

The Mammillaria Hahniana cactus symbolizes endurance and hope. Because it can survive in very harsh conditions and because its flowers are so precious and so delicate compared to its needles, the cactus appeals to many people.

This prickly plant is one of the most sought after houseplants. It is also known as the Old Lady Cactus, Old Lady Pincushion, or the Birthday Cake Cactus. It belongs to the Mammillaria genera which contains over 200 plant species, most of which are native to Mexico.

If you want to grow Old Lady Cacti, you should know that these are very undemanding plants that can thrive in any indoor environment with minimum care. Like most cacti, the Old Lady cactus is a great choice for beginner gardeners who are looking for a friendly plant and for experienced gardeners who are looking for a new cactus to add to their collection.

About the Old Lady Cactus

 

  • The name Mammillaria is derived from the Latin word “mammilla” which means nipple. This name is a reference to the tubercules which are very pronounced in the plants that belong to this genus, which was defined in 1923 by cactologists Nathaniel Lord Britton and Joseph Nelson Rose. The second name is a combination of the Greek words “phyton” which means plant and “pachys” which means thick. Last but not least cactus is derived from the Greek word “kaktos” which means spiky.
  • The Old Lady cactus loves the outdoors, but it can also be successfully grown indoors, in most homes and offices.
  • It is native to central Mexico, but it has a very limited range. It can rarely be spotted in the wild where it grows in clusters.
  • Due to its limited range, it is listed as a nearly threatened species. The plant population has dropped significantly in numbers due to deforestation, but also due to illegal collection of wild specimens.
  • Mammillaria Hahniana cacti prefer elevations between 750 and 2200 meters, and they usually grow on steep slopes and in deciduous forests.
  • The fruits of these cacti are edible. They have a sweet and tangy taste, like strawberries.
  • Old Lady cacti do not contain any toxins that could be dangerous to humans or pets.
  • Depending on their size, you can find these cacti in independent containers, or in terrariums, combined with other succulents.
Old Lady Cactus
Old Lady Cactus

Old Lady Cactus Features: An Overview

  • The Old Lady Cactus has white, thin hairs. The hairs are somewhat flexible, and they cloak the plant. As the plant matures, its hairs grow thicker, richer, and longer. The hairs can grow as long as 5 cm and as they grow they tend to curl.
  • Cacti flowers are always treasured, especially since the prominent flowers rarely occur indoors. In fact, cacti bloom best when they are in desert-like conditions.
  • The Mammillaria Hahniana blooms prolifically, which is why it is very sought after among cacti collectors. It starts flowering even when it is young and with proper care, you can enjoy its flowers for most of the year.
  • The stem of the Old Lady Cactus has a globe shape when the plant is young. As the plant matures, the stem grows in a cylindrical shape and its color changes from light green to a grey-green.
  • The stem of a mature plant usually has a 10-15 cm diameter and it usually does not grow taller than 10 cm.
  • This plant features small triangular tubercles.
  • It produces pink flowers with a reddish base. The flowers have a diameter of up to 1,5 cm and they develop in a circle, like a crown on the plant’s stem.
  • This cactus blooms in late winter or early spring and the fruits develop into small club-shaped fruits, like red chili peppers.
  • Among the most popular varieties, we have the Verderm variety, which is differentiated by its purplish-red flowers, The Albiflora variety which features white flowers, or the Bravoae variety with deep pink flowers.
Mammillaria Hahniana
Mammillaria Hahniana

Growing the Old Lady Cactus

This sun-loving plant prefers the outdoors, but you can recreate its natural habitat indoors without too much effort. You basically need to simulate a desert-like environment, so you need to place it in a warm and sunny location in the summertime, preferably close to a source of heat.

It would be great if you could place your Old Lady cactus near a south-facing windowsill. However, keep in mind that windows are also colder spots due to the day-night temperature changes so make sure your plant does not suffer from cold. You can always move the plant around the house a few times until you find it a permanent location to see where it feels better.

An Old Lady cactus needs about 4-6 hours of direct sunlight/day. If your home is not sunny or warm enough, consider using a led grow light, especially when you want to stimulate flowering. During the summer, you can move the containers outdoors, on a sunny patio or balcony. The plant will be grateful for the time spent outdoors, not only due to the extra sun exposure but also because it loves airy spaces.

If you want to grow the plant outdoors, make sure to place it in a sunny spot. However, even though this is a sun-loving plant used to desert conditions, it can suffer during heatwaves. As such, consider moving potted plants during heatwaves or offer outdoor plants partial shelter when the sun shines so bright that it can scorch them. As far as frost is concerned, these resilient cacti can survive in temperatures as low as -5 degrees Celsius if they are in a dry environment. A moist and cold environment will damage the plants severely.

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