Common Name: Spiral
Height: up to 9
feet tall in frost free areas
Bloom: Late Summer
to Early Fall
For best results 3- 5 hours of direct sunlight daily
Hardiness Zones: 8-11 in Winter
Costus guanaiensis, also named
Spiral ginger, can grow to 9 feet tall in frost-free areas. It is native to
tropical regions of South America. It’s related to the gingers and was
originally part of the Zingiberaceae family, but now the Costus species have
been reclassified into their own family, Costaceae. As with most gingers, this
plant is easy to grow with virtually no pest problems. Spiral ginger is a tall
and handsome landscape plant with large green leaves with a yellowish side, up
to 20 cm long or more, about 4-6 cm wide, arranged on the stalk in a spiral. It
produces spiralling stems of magnificent white, pink, and yellow flowers. The
flowers appear in late summer or early fall. Costus guanaiensis is
distinguished by its green bracts with green leafy appendages and large mostly
white spreading flowers. The amount of reddish color in the flowers varies.
Hardiness zones 8-11, (-10ºC/15ºF, 4ºC/40ºF) in winter. For best results, this
plant should get from 3 to 5 hours of direct sunlight daily, and be grown in
fertile, organic, moist but well-drained soil. Requires consistently moist
soil; do not let dry out between waterings. Monthly applications of a balanced
fertilizer during the summer growing season will benefit this plant. Spiral
ginger grows from thick fleshy roots called rhizomes. A single rhizome will
produce new shoots and increase to a 3 feet wide clump in the second year under
ideal growing conditions. It’s important that the rhizome be kept dry during
winter, but in spring, when growth starts, it should be well fertilized and
Soak seeds overnight in warm water.
Plant your seeds 1/2″ deep in a mixture of rich soil. Keep warm, moist and
in bright light. Germination is faster for the Spiral ginger than for most
gingers. It could take 1 or two months, maybe more, don’t get discouraged.
All seeds will come in a resalable
plastic zip lock bag wrapped in a protectant so the seeds are not damaged by
shipping machines. All seed packets contain no fillers or other weeds or seeds
mixed in. Most have been harvested by hand & all test at a high germination
All seed counts should be considered estimates as the seeds is
packaged by hand, there is 2-3 more or less in a bag. We do our best to
ensure accuracy and will often add extra seeds. However, all estimates are
Seeds will ship without tracking numbers. Items
will be shipped 1-3 business days of receiving payment. Plants will be shipped
via USPS. Shipping usually takes anywhere from 3-5 days.
If you do not satisfy with the purchase, please do not leave
negative/neutral feedback. Contact us for solution, We’ll try our best to
fix the problem as soon as possible.
Important! Please Read!
All seeds have been test sown to ensure germination.
Please familiarize yourself with growing conditions and instructions for your
seeds before you plant them, as all seeds are different. Basic growing
instructions can be found under each listing.
We Cannot Guarantee how much you will be able
to grow, as too many variables come into play, soil condition, your ability to
garden, weather etc. I guarantee that they arrive as described and are in good
viable condition and the germination rates are accurate.