These plants were grown from European seed and will be unique to other G. neuhuberi available on the market.
Gymnocalycium neuhuberi is not often widely available.
One for the collectors!

Easy care!
Gymnocalycium are amongst the easiest cacti to grow and are very forgiving.
Of course there are exceptions but overall they are very easy going and able to adapt to many different positions.

For best results select a position with soft to moderate light.

They require weekly watering during the active growth period (spring to autumn)

Should be kept dry during periods of extreme cold and heat.

Photos are indicative of the size plant you will receive.