Gymnocalycium tillianum
Gymnocalycium tillianum
Gymnocalycium tillianum
Gymnocalycium tillianum
Gymnocalycium tillianum
Gymnocalycium tillianum
Gymnocalycium tillianum
Gymnocalycium tillianum

(This plant comes in a 3.5 inch pot. All of our plants are grown under the same conditions, although not all the plants are the same. You will receive a similar plant in size and shape to the ones in the pictures. Our plants are hand-picked and carefully selected to bring you the best quality possible. Please allow us up to 3 business days to process your order. If you wish to receive your order on a specific date, or have special instructions, please add a note at the checkout. The plant is shipped in its pot to prevent any damage to the roots.)

Gymnocalycium tillianum is a short, squat Argentinian cactus, with shining green stems that grow 10 cm tall and 15 cm wide. It has long, black-brown, curving spines and relatively large pale pink, carmine red or wine-red flowers in spring that stand out. The richness of the red always provides an inner glow of satisfaction. Spherical fruit follow in summer. Gymnocalycium tillianum is almost identical to the standard Gymnocalycium oenanthemum and it is hard to tell apart one from the others, if not for the geographical provenance and a few little differences in seeds morphology and they are not considered distinct.

Stem: Solitary, flattened globose, leaf-green, grey-green or bluish-green; up to 12-15 cm in diameter, and 8-10 cm tall. Apex depressed, woolly, covered by the spines from neighboring areoles.
Roots: Fibrous.
Ribs: 11 to 13 (12 to 18 according to Ritter), sinuous, acute or somewhat rounded, separated by deep vertical furrows. Tubercles rounded, with prominent chins separates by straight transverse furrows, occupying the whole width of the ribs.
Areoles: Oblong, 8 × 5 mm, initially yellow then white.
Radial spines: 5 (3 to 8, Ritter), stout, stiff, erect, , straight to slightly curved, 25-30 mm long one pointing downward, others in pairs curving sideways. .
Central spines: absent (occasionally one is present, similar to the radial, Ritter), erect and slightly bent upwards. Young spines translucent, grey-brown with dark tip to blackish, becoming grey with brownish points.
Flowers: Apical, 30-35 mm long, 25-35(-40) mm in diameter. Pericarpel short (15 mm), green, with rounded olive-green scales, initially edged with white and a pink point, then bordered with pink. Outer perianth segments spatulate, cherry-red with an olive-green wide median band. Inner perianth segments spatulate, but narrower, with a small mucro, carmine red. Throat carmine. Filaments carmine pink. Anthers light yellow. Style carmine to orange-red. Stigma white to yellowish, with 9-11 lobes, under the stamens.
Fruits: Flattened globose to spherical, light green to brownish green with lighter scales.
Seeds: ca. 1 mm. Testa matt blackish-brown, finely granulous. Hilum large basal, circled with a strong prominent white ring.

Watering: Needs moderate to copious waterings in summer, but do not overwater (Rot prone), keep dry in winter at a minimum temperature of 0°C.
Fertilization: Feed with a high potassium fertilizer in summer.
Hardiness: Reputedly resistant to frost if kept on the dry side prior to, and during, cold weather (hardy to -5 C ° C, or less for short periods).
Exposition: The plant tolerates extremely bright situations but enjoys filtered sunlight or afternoon shade, inside it needs bright light, and some direct sun. Tends to bronze in strong light, which encourages flowering and heavy spine production, but is likely to suffer from sun scorch or stunted growth if over exposed to direct sunlight during the hottest part of the day in summer. In full sun turns an uneven brownish red colour.

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

Blooming Season summer
Common Name -
Dormancy -
Family Cactaceae
Flower red
Frost Tolerance -5 C
Growth Rate slow
Hardiness Zone 8a to 10b
Height 10 cm
Origin Argentina
Pot Size 3.5"
Scientific Name Gymnocalycium tillianum
Shape Globose
Sun Exposure Full sun to partial shade

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Angie S.
United States United States

Such a Beauty!

I absolutely love this cactus shop! I live all the way in Ohio and they deliver with the utmost care. I highly recommend!! Thank you!

Terry A.
United States United States

Gym. tillianum

Pretty darn cute, can't wait to see how she does! Best packing ever.

Richard M.

Nice plant. Well packed and shipping was e...

Nice plant. Well packed and shipping was expeditious!

Gymnocalycium tillianum

7 reviews
Regular price$ 9.99
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Colder regions warning: If you 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. We are now offering 72-hour heat packs by request, and if your order is $50.00 or more, you will get a heat pack free of charge by request. 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. Care instructions are included in every package you order. We ship via USPS Priority Mail, and we calculate the shipping cost based on the weight and volume of your purchase. Depending on your location, we will ship the plants on a certain day to avoid transit time during weekends or holidays. If you have any questions or comments, please feel free to contact us at any time.