Titanopsis calcarea

Today's post is about a very odd looking succulent, Titanopsis calcarea.

Titanopsis calcarea also goes by ‘Jewel plant’, and ‘concrete leaf’- both of which I think describe it nicely! The warty appearance of the leaves look like limestone, making it well camouflaged in the rocky outcrops of South Africa it is found.

As a small succulent (mine is only a couple of cm tall), it does not stand out. However, on close inspection Titanopsis calcarea is so unique, I am sure you will enjoy having one in your collection.

The genus Titanopsis is small, containing ~10 species. The genus name Titanopsis is derived from the Ancient Greek words ‘titanos’(=limestone) and ‘opsis’ (=looks like), which sums up the genus perfectly. Calcarea is derived from the Latin for limestone, again referencing Titanopsis calcarea’s appearance and habitat.

My Titanopsis calcarea was a gift, however I have seen these plants online for ~£8.

Care instructions: Titanopsis calcarea are very tolerant plants. They prefer temperatures of 5°C to 30°C, however, can tolerate as low as -10°C and as high as 45°C! If you plan on having these in low temperatures, make sure the soil is dry to avoid damaging the plant (as it will rot if left wet).

Titanopsis calcarea need lots of bright sunlight, so ideally should be kept on a south-facing window sill.

Titanopsis calcarea need even less water than a normal succulent. Once a month in spring-autumn should be okay, but only if the soil is completely dry. In winter I do not water mine at all.

Titanopsis calcarea can be fertilised in once in early summer (with ½ strength fertiliser), but this is not essential. They like tough conditions.

I keep my Titanopsis calcarea in a small pot, in cacti potting mixture and a thick layer of grit at the base for extra drainage.

If Titanopsis calcarea flowers, they will be (comparatively) big, yellow blooms. These flowers can appear in autumn or spring.

Titanopsis calcarea grows in clumps of leaves. These clumps can be separated to propagate new plants if desired.

I really like my Titanopsis calcarea, it is unusual and resilient. I will update if I am lucky enough to get flowers this year.

Any questions/corrections- please comment below

*comments are especially appreciated at the moment 😊*

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