Q: How does 'Nana Purpurea' differ from other dwarf Nandinas like 'Moon Bay'?
A: While both are compact (2-3 ft), 'Nana Purpurea' is distinguished by its consistent purple-tinged foliage throughout the growing season, intensifying to deep burgundy in winter. It also may produce occasional red berries, whereas 'Moon Bay' is largely sterile. 'Moon Bay' typically has brighter lime-green new growth and a broader spectrum of fall colors including orange and pink .

Q: How much sun does it need for the best purple color?
A: For the most intense purple-red winter coloration, plant 'Nana Purpurea' in full sun. In shadier locations, the foliage will be predominantly green with less dramatic purple tones .

Q: Are the berries toxic to birds or pets?
A: Yes, all parts of Nandina, including the berries, contain cyanogenic glycosides and are considered toxic if ingested in large quantities. While the berries are attractive to birds, they should be planted with caution where pets or small children may be tempted to eat them .

Q: How should I prune it?
A: 'Nana Purpurea' requires minimal pruning due to its naturally compact habit. If needed, prune in late winter or early spring to remove any dead or wayward stems. To rejuvenate an older plant, cut a few of the oldest stems to the ground to encourage fresh new growth .

Q: Is it considered invasive?
A: While standard Nandina can be invasive in some regions due to seed spread, 'Nana Purpurea' is a dwarf cultivar that produces fewer berries than the species, reducing its invasive potential. However, it may still self-seed occasionally in ideal conditions .