Mammillaria theresae
Mammillaria theresae
Mammillaria theresae
Mammillaria theresae
Mammillaria theresae
Mammillaria theresae
Mammillaria theresae
Mammillaria theresae
Mammillaria theresae
Mammillaria theresae

Mammillaria theresae

Mammillaria theresae is endemic to Durango Mexico. It is a small geophyte, usually single headed, This is a very distinctive little species. When it came into cultivation, it caused quite a sensation because of its peculiar long-tubed blossoms and the spines are very decorative: all radial, translucent white, plumose, forming little clumps, which needs to viewed under a lens to be appreciated. They look like furry little starfish. This species puts out a good amount of growth each year, but the individual stems seem to grow no larger, as the old growth tends to compact at the base. Plants bloom when still tiny (less than 2 cm tall), the bright magenta flowers of 5 cm in length often obscuring the plant. This will no doubt be one of the most talked about little cacti of all time.
Blossoming time: Mainly in may, but also sporadically though out summer.
Remarks: Cryptocarpic fruit: Mammillaria theresae is one of the few species of cactus with cryptocarpic fruits. That is, the fruit and seeds are produced and retained inside the stem of the plant. After the flower is finished and dropped off, the stem closes over the fruit and the fruit/seed gradually ripens within. The following years the fruit may remain within the body at the axil, or may protrude a bit. A thin membrane will be above the part where ripe seed can emerge. As the plant swells with the new growing season, the membrane fractures, and some seed from the past years can little by little drop down and germinate in the close proximity, forming small colonies. But usually the seeds remain within the plant body for several years or for the whole life cycle of the plant, and frequently they will be released only at the death of the plant after the disintegration of the old stem.
It is possible to collect fruit and seeds only by means of a thin pointed forceps. The seeds' vitality lasts for many years and moreover seeds contain inhibitors that preserve them from premature germination.

Cultivation and Propagation: like the other Mammillarias of the saboae group - is not the easiest of Mammillarias to grow and keep,. They need to be kept dry in winter.
Pot plants are quite wet-sensitive. Care must be taken with watering, and it needs good drainage. Water sparingly during the growing season; keep very dry in winter. But plants grown outdoors seems to tolerate easily the winter wetness. It has proved to be quite frost resistant and has demonstrated to survive safely outdoors under a cover of snow at a temperatures of -15° C. Sun Exposure: Full sun - Light shade.
Propagation: Seeds, cuttings or grafting. Germination of the seed can still prove to be a challenge.

Some of the information in this description has been found at, and

Blooming Season Though out summer
Common Name Mammillaria saboae var. Theresae
Dormancy Winter
Family Cactaceae
Flower Pink
Frost Tolerance -15° C
Growth Rate -
Hardiness Zone 10a to 11b
Height 4(-5) cm
Origin Mexican state of durango
Scientific Name Mammillaria theresae
Shape Globular to cylindrical
Sun Exposure Full sun to light shade

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Matthew A.
United States United States

Beautiful Specimen

Cactus arrived in great shape despite remaining in the hands of the USPS for an extended period of time. Very small cactus but very unique in appearance. One of, if not the favorite in my collection.

United States United States

very small specimen

i didn’t know it would be so small!

Larissa A.
United States United States

Beautiful little mammillaria!

Excellent service and quality plants, as always.


Great cactus to buy.


This tiny plant is a must have. Will repurchase.

Mammillaria theresae

sku: 1062

6 reviews
Regular price$ 36.99
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If you live in a cold climate and are expecting temperatures below 40 degrees within the next five days after placing your order, we highly recommend adding a heat pack to your order. If you do not order a heat pack, we do not send one with your order.



To prevent plants from freezing while in transit, orders placed for areas with extreme severe freezing temperatures will be held for shipment until it is safe to ship.

Plants that are in 3.5" pots and smaller will be shipped in its pot to prevent any damage to the roots. Any plant that is larger than a 3.5" pot WILL NOT come with a pot as it will be shipped bare root.

Depending on the species and season, you will receive a very similar plant to the one in the picture. It may or may not be blooming at the time of your purchase.

We ship via USPS Priority Mail, and we calculate the shipping cost based on the weight and volume of your purchase. Care instructions are included in every package you order. Please allow us up to 3 business days to process your order. Depending on your location, we will ship the plants on a certain day to avoid transit time during weekends or holidays. If you wish to receive your order on a specific date, or have special instructions, please add a note on your order. If you have any questions or comments, please feel free to contact us at any time.

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