We've been growing cacti for over 40 years now and my interest in the Copiapoa genus has grown with the years. Copiapoa haseltoniana is a good example of why. The yellow to gold spines with a amber-yellow crown of wool and flowers from a young age are all elements which recommend it. It also clumps with age, making a great exhibition plant. Keep the plants warm and dry in the winter, avoiding any frost, and giving it plenty of light. Provide a potting mix with very good drainage and it will reward you with years of enjoyment.