You should treat your Boesenbergia as you would a hydrangea and give it part-shade, well-drained, humus-rich soils and consistent water. During the winter, you should keep it as dry as possible to prevent root rot.
More Information About Boesenbergia
The genus Boesenbergia contains around 80 species of tropical ginger relatives that are native to China, India, and southeast Asia. In its native countries, Boesenbergia is used for ornamental, medicinal, and culinary purposes. Boesenbergia stems and leaves are reminiscent of canna lily or curcuma... large and paddle shaped. Boesenbergia flowers are somewhat orchid-like with 5 normal petals and a 6th specialized petal called a labellum that serves as a landing pad for pollinators. The flowers grow under the foliage near the ground and emerge in late summer and fall.
As is sometimes the case with tropical genera that grow in montane sites, some Boesenbergia has a hidden talent...cold hardiness...at least enough to grow from Zone 7b south. You should treat your Boesenbergia as you would a hydrangea and give it part-shade, well-drained, humus-rich soils and consistent water. During the winter, you should keep Boesenbergia as dry as possible to prevent root rot. Proper site selection will ensure this. If you have ever grown alocasia, curcuma, or zingiber ginger, then you know what to expect from boesenbergia. It will be late to emerge from winter dormancy and it may even be mid-to-late June before you see it peaking out from the soil. When you're ready to buy boesenbergia for your perennial garden, we hope you'll check out our online offering of boesenbergia for sale.