Another nice 'Catmint', with a neat, upright habit. Plants have deep blue flowers that cover 18 inch (18 in = 45.7 cm) tall stems, the plants grow 2 to 3 feet (3 ft = 91.4 cm) wide as they mature. The robust growing plants grow 18 inches tall and have thicker spikes of deep-blue flowers than other Nepeta x faassenii selections. The thick clumps have upright stems, and are very showy in pots, large containers, and in the border as an edging or mass planting.. Like most catmints the foliage is scented. A good choice for a sunny well drained garden or walkway. Flowering starts in late spring, cut back the spent flowers in late July to encourage more flowering and to tidy up the clumps. Easy to grow in average, dry to well draining soils, best in full sun to part shade with more shade producing plants that tend to grow longer stems that sprawl. Once established, plants thrives in dry soils and are very tolerant of drought. Some flowering the first year. Not bothered by insect or fungal problems and not eaten by animals. The seeds are on the small side but easy enough to sow, the seedling have a good growth rate and can be transplanted out in one month after germination. Long lived perennials.
Cover the seeds with a very thin layer of soil medium, darkness needed for best germination. Use 70F, germination takes 10-20 days.