Description
Tephrocactus geometricus is native to the Argentina Catamarca and Bolivia border. They grow in an extreme desert habitat, between violet and red rock in flat or moderately steep sandy soils. Tephrocactus geometricus are small low growing globular segmented cactus that grow branched into small clumps. The stems are blueish green that reddens to purple in full sun exposure. New growth is dark purple. Spines are black
How to grow Tephrocactus geometricus cactus
Cut the spherical segment along the base itself, as close as possible to the place where it is connected to the other segments.
Leave it for a few days in a dry and shady place to form callus.
When the cut dries, you can place the segment into a container filled with a mixture of soil and perlite or sand. Instead of burying the cutting, lightly press it with your fingers to make better contact with the soil and stay upright.
Do not water after planting because the rootless segment is additionally prone to rot!
Usually, it takes four to six weeks for the cutting to develop the roots. Only when you notice the new growth, you can water the plant for the first time.
How to care for Tephrocactus geometricus cactus
Light: Full Sun
Place in a bright room that is sun drenched almost all day. Or directly in a south-facing window.
Watering need: Low demand
All of the soil should be dry before watering. If the soil is still moist, you risk giving this plant too much water which can make it start to rot. When you water this plant, water well and then allow the soil to dry out completely before you water it again.
Fertilizing need: Minimum demand
This plant does not need very much fertilizing, but giving them some extra nutrients every once in a while is important to keep them green, promote good growth and to stay healthy. You can find more info below how to best fertilize this plants.