Due to having three consecutive mild winters, with no temperatures below 20 degrees F, we’ve actually been able to get a trunk on our Washingtonia filifera palm. Typically not hardy in our climate, our plant was grown from seed collected from a wild population in Arizona that had experienced 10 degrees F. We’ll see what this winter has in store.
We are just loving our hardy hybrid cycads in the garden this time of year, and here are two we photographed this week. The first is Cycas x bifungensis (bifida x taitungensis), and the second is Cycas x panziholuta (panzhihuanensis x revoluta). We have found that hybrids between hardy species are even more winter hardy than the species themselves. Hardiness for both is probably Zone 7b and south.
Here’s a recent image of the amazing Colocasia esculenta ‘Maui Sunrise’, still looking great in late October! Moist, rich soils and full sun are the key for your plants to look this spectacular! Winter hardiness is Zone 7b and warmer.
Apologies for commandeering the famed Duke Ellington line, but it seems appropriate for the new Colocasia ‘Waikiki’.
When we first met Hawaii’s John Cho in 2003, we knew some special elephant ears would be the result of our collaboration, but it was hard to imagine something like the seriously tricked-out Colocasia ‘Waikiki’. Almost every year, John, who has now retired, but is still actively breeding elephant ears, travels to JLBG to evaluate his new hybrids at our in-ground trials and make future introduction decisions. There are some seriously amazing new selections starting down the introduction pipeline.
Colocasia ‘Waikiki’ will be released from Plant Delights Nursery on January 1, so if you like this, mark you calendars and stay tuned to the website.
As an avid bromeliad collector back in the 1970s, I’ve had a long fascination with members of the bromeliad family. Although, I’m long past my house plant days, I continue to test bromeliads from cold climates for their adaptability in our Zone 7b NC garden. So far, we’ve had one member of the genus Puya to survive for well over a decade, so we’re trying more. Here is our trial clump of Puya caerulea var. violacea this week, where it is thriving so far in the crevice garden. This 2.5 year old plant is just waiting for a really cold winter to see how it fares, but so far, so good.
The 7′ tall, and very floriferous Hedychium ‘Flaming Torch’ is looking quite stunning today in the garden. Although they are commonly called ginger lily, they are not a true lily (genus Lilium) or a true ginger plant (genus Zingiber). Hedychiums are prized for their summer and early fall floral shows atop bold-foliaged stalks. The inflorescences are quite exotic looking, resembling clusters of orchids. Slightly moist, rich garden soils and at least 1/2 day sun are best for these hardy tropical looking plants.
Here’s another oddity in the fabulous ginger genus, hedychium. First, Hedychium ellipticum requires shade, compared to most hedychiums that need sun to flower. Also, Hedychium ellipticum has pendant stalks, compared to the rigidly upright stalks of most more commonly grown ginger lilies. We love the elegant flower heads that adorn the garden in late July/early August. This photo is from the gardens at JLBG last week. Hardiness is Zone 7b south. Sadly, this is always a poor seller when offered by Plant Delights…perhaps people just need to see this in person to appreciate its exquisite beauty.
Last year, we were thrilled when one of our cycads produced a female cone…a first for JLBG. We subsequently impregnated it with pollen supplied from the garden of one or our former volunteers, Mike Papay. Our plant produced a great seed crop (56 seed), which was recently planted.
As a point of reference, I should mention that cycads are dioecious…each plant is either male or female. The genus cycas is one of the oldest known surviving plant genera, having emerged between 250 and 350 million years ago, when it diverged from ginkgos. Cycas, having been around for a very long time, also have supercharged, swimming sperm…a trait not seen in modern plants.
This year, we welcomed our first male cycad to cone. The first photo was taken 1 month prior to the second photo, so it’s taken that long for this males’ cone to grow from a tiny bulge to be ready to spread its pollen (sperm). Since we don’t have any flowering females in the garden this year, we’re shipping off the pollen to a palm and cycad breeder in Georgia. This afternoon, we used the Lorena Bobbitt technique to sever its cone, which is now boxed (bottom image) and leaving town before the plant rights groups find out.
Flowering at our exit drive this week is the beautiful Canna ‘Red Futurity’…a superb purple-foliaged canna lily. Learn more about growing canna lilies in your garden.
We expect most everyone has grown a hibiscus at one time or another, either tropical or hardy. How many of you have tried the Asian Hibiscus hamabo? This fascinating 8-10′ tall evergreen shrub has thrived in our trials since 2018, and is just now flowering at JLBG for the first time. We had always considered this species tropical, so we were thrilled to hear that it survived as a die back at the SFASU Arboretum in Texas after this springs’ arctic blast of -4F. Dr. Dave Creech at SFASU tells me that it remains evergreen down to 10 degrees F. Has anyone else had experience with growing this outdoors in a cold winter climate?