Sex for the Centuries

Since we are limited in the number of hardy century plant species, our only option for more agave diversity in the garden is to create it by crossing existing hardy species together. Here are a few of our recent successes.

Agave x amourifolia is a Plant Delights/JLBG creation from a cross we made in 2016 that combined the genes of three century plants, Agave ovatifolia, Agave lophantha, and Agave x pseudoferox ‘Logan Calhoun’. Our size estimates were that the offspring would mature at 3′ tall x 5′ wide. Here is one of our garden specimens photographed this week, which has already reached 2′ tall x 3′ wide.

Agave x amourifolia

Below is Agave x ovox, a 2017 cross of the two giants, Agave ovatifolia and Agave x pseudoferox ‘Bellville’. We expect this to get huge…perhaps 5′ tall x 10′ wide.

Agave x ovox ‘Large Ox’

Below is Agave x protifolia is a 2016 Mike Papay cross of Agave x protamericana x Agave ovatifolia. We also expect this to get quite massive.

Agave x protifolia

Below is Agave x ovatispina ‘Blue Arrows’, a 2016 Mike Papay cross of Agave ovatifolia x Agave flexispina. We would have expected this to be a mature size, but it’s achieved this in only 5 years, so we think we’re seeing some serious hybrid vigor.

Agave x ovatispina ‘Blue Arrows’

Below is Agave x ocareginae, our 2016 cross of Agave ovatifolia x Agave victoriae-reginae. Most likely, this elegant small grower will never offset.

Agave x ocareginae

Below is Agave x schuphantha, a 2015 Mike Papay cross involving three century plant species, Agave schidigera, Agave lophantha, and Agave lechuguilla. It’s formed a beautiful, symmentrical rosette, which should be getting close to mature size.

Agave x schuphantha ‘Wheel of Fortune’

The Fragrance of Fall

Perfuming the garden this week are the amazing Osmanthus fragrans. This Chinese native evergreen shrub is unquestionably the most fragrant flowering plant in the garden. When the clusters of small flowers open early October, they emit a sweet fragrance that can easily waft for 200 feet. While we have nine clones in the gardens at JLBG, our oldest/largest two are Osmanthus fragrans ‘Conger Yellow’ (yellow flower) and ‘Aurantiacus’ (orange flower)…both pictured below.

Our sister institution, the JC Raulston Arboretum probably has the largest collection in the country of these amazing plants. For those old enough to remember, Osmanthus fragrans was a personal favorite of the late Dr. JC Raulston. If you are looking to purchase plants and can’t find them locally, our friend Ted Stephens, who runs a SC mail order nursery certainly has the largest offering in the country of these amazing plants.

Can you say Poo-yuh?

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.

Green Eggs and ….pancakes?

Most everyone is familiar with Blue rug juniper…aka: Juniperus horizontalis ‘Wiltonii’, but few people know its dwarf cousin, Juniperus horizontalis ‘Pancake’. This amazing selection of the North American native groundcover is much slower growing, shorter, and with much finer textured foliage. Here is a recent photo of this amazing plant in the gardens at JLBG. Why is it that we never see Juniperus horizontalis touted for native plant gardens…hmmm?

Casting about

Just snapped this photo of Aspidistra minutiflora ‘Leopard’…one of our favorite cast iron plants. Although it isn’t really winter hardy here in Zone 7b, it makes one heck of a tough house plant.

Proud Pedicles

Flowering this week at JLBG is the little-known, but marvelous Liriope longipedicellata ‘Grape Fizz’, thanks to the exploits of plantsman Darrell Probst. We find this tightly clumping species much more interesting than the more formal Liriope muscari or the weedy, spreading Liriope spicata, and will tolerate full sun to shade. By the way, pedicles are stalk-like structures connecting one plant part to another….in this case the flower stalk to the flowers, hence the specific epithet longipedicellata (long pedicles).

Hark…it’s Arp

Our 4.5 year old clump of Rosmarinus ‘Arp’ has become ridiculously large, as rosemary does. When we moved to our new home, Anita requested one near the kitchen door, which was a no-brainer since I am in love with both her and her rosemary chicken. Rosmarius ‘Arp’ has been one of the most winter hardy of all rosemary cultivars we’ve trialed.

Gentle Yucca

Most folks think of yuccas as only sharp plants, but one that’s sharp without being sharp is our Southeast US native Yucca x recurvifolia…a naturally occurring hybrid between Yucca aloifolia and Yucca flaccida. Here is the clone Yucca x recurvifolia ‘Variegata’ in the gardens this week. Hardiness is Zone 6b/7a and south.

Casting About

Over the last few years, we’ve been growing more and more aspidistra (cast iron plants) from seed in the garden. Here are a few of our more interesting seedlings. The first is from our search for a narrow-leaf selection of the common Aspidistra elatior, which has been christened A. ‘Thin Man’. The second is a streaked and spotted form that we named A. ‘Zodiac’. The third is a yet un-named seedling from Aspidistra ‘Snow Cap’. Surprisingly, the white leaf tip trait comes consistently true from seed.

Aspidistra elatior ‘Thin Man;
Aspidistra elatior ‘Zodiac’
Aspidistra elatior JLBG-035

Celebrate Plasticity

We live in an age where many plastic products are vilified, but every now and then, we find a reason to embrace the texture of plastic. Such was the case in 2008, when we visited The Missouri Botanic Garden. Walking through one of their greenhouse, I spotted an odd holly fern, planted in the middle of a large mass of Cyrtomium falcatum. The foliage appeared much thicker and more glossy than any of the other plants. The staff was kind enough to share a piece, which we subsequently named Cyrtomium ‘Plasticity’. We theorize it is probably a ploidy mutant with an extra set of chromosomes that would account for the extra thickness and glossiness. Here is a photo from the gardens this week, where it has become a favorite.