Picea abies 'Jana' is an ultra-dense miniature selection of Norway spruce with fine, dark-green needles and a nice symmetrical flattened globose form. Typical rate of growth is less than 1 inch (2.5 cm) per year. After 10 years in the garden, one can expect a tight flattened ball, 6 inches (15 cm) tall and 12 inches (30 cm) wide. The best, slowest growing and tightest specimens are those that are grown from rooted cuttings rather than grafting. In fact, this cultivar is not terribly special when grown from a grafted scion.
This cultivar originated as a witch's broom found in 1945 on a specimen of Picea abies 'Veitchii' by V. Novotný, Czech Republic.