Wavy scaly cloakfern for November Foliage Follow-Up


“I got a rock,” Charlie Brown complains while trick-or-treating. But I was happy to find this holey limestone rock at Redenta’s in Dallas last month. Yes, I actually bought a rock as a planter. Later, at The Natural Gardener, I happened upon this unusual plant — wavy scaly cloakfern (Astrolepis sinuata), a dry-loving native Texas fern — and decided to give it a try in the rock.


According to the Wildflower Center’s website:

“Astrolepis sinuata is a lower elevation, dry habitat fern typically found growing underneath evergreen desert & semi-desert shrubs in rocky soil or rock crevices. Although the fronds like to be in full sun, the roots like [to] remain shaded. This fern is semi-evergreen…with thick green fronds, the undersides of which are cinnamon in color, forming a tight 18[-in] wide upright clump with a short creeping rhizome.”

Mine’s in more shade than is ideal, but it sounds like a dry rock planter will be to its liking.


Plant Delights, which sells it by mail, adds this warning — or challenge, depending on how you look at it:

“This attractive southwest US native is found on limestone outcrops and slopes from Texas south to South America, but is rarely seen in cultivation…This is not a fern to be tried by beginners, as it is not as easy to cultivate as most others. In nature, it usually grows with its roots hidden beneath a large rock.”

I hope I don’t kill it!


And because today is Foliage Follow-Up, I’ll end with the patio view from my living room — nearly all foliage plants, including purple oxalis (Oxalis triangularis) on the stairs, various potted succulents, and an evergreen vine on the fence.

This is my November post for Foliage Follow-Up. Fellow bloggers, what leafy loveliness is happening in your garden this month? Please join me in giving foliage its due on the day after Bloom Day. Leave a link to your post in a comment below. I’d appreciate it if you’ll also link to my post in your own — sharing link love! I look forward to seeing your foliage faves.

I welcome your comments; please scroll to the end of this post to leave one. If you’re reading this in a subscription email, click here to visit Digging and find the comment box at the end of each post.
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Digging Deeper: News and Upcoming Events

Calling all garden bloggers! You’re invited to register for the annual Garden Bloggers Fling tour and meetup, which will be held in Austin next May 3-6, 2018! Click this link for information about registering, and you can see our itinerary here. Space is limited, so don’t delay. The 2018 Fling will be the event’s 10th anniversary, which started in Austin in 2008.

Join the mailing list for Garden Spark Talks! Inspired by the idea of house concerts, I’m hosting a series of garden talks by inspiring designers and authors out of my home. Talks are limited-attendance events and generally sell out within just a few days, so join the Garden Spark email list for early notifications. Simply click this link and ask to be added.

All material © 2006-2017 by Pam Penick for Digging. Unauthorized reproduction prohibited.

Foliage architecture (and art) on Rice University campus


At my alma mater in Houston last month (right after Hurricane Harvey), I appreciated the marriage of foliage and architecture at the Brochstein Pavilion, a remarkable structure and hub of student activity that didn’t exist when I was a student at Rice University.

A hedge of tightly clipped horsetail divides the pavilion’s patio from the main sidewalk, all of which is shaded by a wide trellis of aluminum tubes. The trellis roof seems to float ethereally over the space and provides a good deal of shade, which, if you’ve ever been to Houston, you know is essential. It also evokes the floating roof of the campus’s James Turrell Skyspace.


I’m always surprised by how much I love a bosque. I find them inviting and visually soothing. The one at Brochstein Pavilion runs alongside the building, just across the main sidewalk. According to an article in ArchDaily:

“Responding [to] the grid of the building, a bosque of 48 specimen Allee Lacebark Elms rise from a plane of decomposed granite and provide an organizational framework that humanizes the scale of the space. A generous concrete walk connecting the library and the pavilion bisects the grove into garden rooms whose perimeters are defined by plantings of African Iris. Long black concrete fountains filled with beach stone occupy the center of each space, filling the garden with the murmur of running water and reflecting the filtered light through the canopy.”


The contemporary trough fountains were leaf-strewn a week after Harvey, but otherwise the landscape appeared to have held up well.


On the other side of the pavilion, a broad allee of Southern live oaks — one of many such live oak allees on the Rice campus — shelters additional seating and leads the eye to a sculpture by Jaume Plensa called Mirror.


While I was on campus, I visited Fondren Library, where I knew there was a display of Mike Stilkey’s book sculptures. (Here’s an article about his exhibit at Rice Gallery.) I first discovered Stilkey’s work at the L.A. home of Joy and Roland Feuer (scroll down for their Stilkey installation). His work is striking, often humorous, and instantly recognizable. Speaking of trees, Stilkey used a book about Texas trees for the “capstone” of this monumental book sculpture…


…seen in full here, seemingly balanced atop a small stack of books painted with wavy apartment towers and whimsical animals.


I found other pieces throughout the library, like this doleful water bird in a top hat…


…and a giraffe peeking from a stairwell over a railing…


…and a slinking cat.


I’ll leave you with one last book sculpture that brings us back around to the theme of trees as architecture. And thanks for bearing with me as I veered off-topic a bit with my Foliage Follow-Up post!

This is my October post for Foliage Follow-Up. Fellow bloggers, what leafy loveliness is happening in your garden or one you’ve visited this month? Please join me in giving foliage its due on the day after Bloom Day. Leave a link to your post in a comment below. I’d appreciate it if you’ll also link to my post in your own — sharing link love! I look forward to seeing your foliage faves.

I welcome your comments; please scroll to the end of this post to leave one. If you’re reading this in a subscription email, click here to visit Digging and find the comment box at the end of each post.
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Digging Deeper: News and Upcoming Events

Don’t miss the Austin Open Days garden tour sponsored by the Garden Conservancy on November 4.

Join the mailing list for Garden Spark Talks! Inspired by the idea of house concerts, I’m hosting a series of garden talks by inspiring designers and authors out of my home. Talks are limited-attendance events and generally sell out within just a few days, so join the Garden Spark email list for early notifications. Simply click this link and ask to be added.

All material © 2006-2017 by Pam Penick for Digging. Unauthorized reproduction prohibited.

Evergreen combos (mostly) for Austin


A local reader asked me about evergreen plants that grow well here in central Texas, and as I was putting together today’s Foliage Follow-Up post, I realized it’s a good opportunity to share some of my faves. I use a lot of evergreen plants — though not necessarily shrubs — because 1) they tend to require less maintenance than plants grown for flowers, 2) they look great year-round, 3) they provide wonderful structure, and 4) I have lots of shade, and flowers generally need more sun.

In the photo at top you see a chartreuse scrim of bamboo muhly (Muhlenbergia dumosa), an ornamental clumping grass that stays evergreen in most winters. Last winter’s two Arctic blasts did bleach out the foliage, and it takes its time in greening up again. But for a light-catching green cloud, drought tolerance, and deer resistance, this grass can’t be beat.

In the steel planter, ‘Burgundy Ice’ dyckia offers a dark-leaved evergreen option for Austin gardens. Again, it can be damaged in extreme cold, but most winters it does fine. As a low-growing, front-of-border plant, white skullcap (Scutellaria suffrutescens ‘White’) is a semi-evergreen sub-shrub that tolerates dappled shade. It looks best with a light shearing in late February and maybe again in mid-August. The white-flowering skullcap can be hard to find, but pink is readily available. Save the purple skullcap (Scutellaria wrightii) for full sun and gravelly conditions.


Here’s a long view of this same bed, from a little further along the driveway. Strappy Texas sotol (Dasylirion texana) is the star here, backed by bamboo muhly. In front, I just took out all my iris, which wasn’t blooming in the dappled shade, and replaced it with evergreens ‘Micron’ dwarf yaupon holly (Ilex vomitoria ‘Micron’), foxtail fern (Asparagus meyeri), and variegated flax lily (Dianella tasmanica ‘Variegata’). ‘Micron’ holly is a new one for me and is said to get only about 1-1/2 ft. tall by 2-1/2 ft. wide. (I bought all of Barton Springs Nursery’s supply, but I spotted it at The Natural Gardener last weekend.) Foxtail fern and flax lily both can be hurt by deep freezes, but generally they do fine in Austin’s winters, and they are workhorses that require very little care or maintenance.


‘Green Goblet’ agave (Agave salmiana var. ferox ‘Green Goblet’) is a winter-hardy agave with a beautiful olive-green leaf with a tinge of blue. It produces pups on underground runners, but not too many, so they’re manageable. I just tug it loose whenever one pops up — usually several feet away from the mother plant. The silver groundcover woolly stemodia (Stemodia lanata) is not evergreen, but it’s a good choice for part or full sun and gravelly conditions. Fuzzy-leaved mullein (Verbascum spp.), which is generally evergreen for two years until it blooms and then dies, grows amid the stemodia.

In the background, I’m growing a lawnette of evergreen Berkeley sedge (Carex divulsa). I now recommend ‘Scott’s Turf’ sedge (Carex retroflexa ‘Scott’s Turf’) instead of Berkeley (Scott’s is less fussy), but both are good lawn substitutes for part shade or dappled shade and green all year.


Purple-leaved ‘Vertigo’ grass (Pennisetum purpureum ‘Vertigo’) goes brown and dormant after a freeze, but it does return each year, unlike traditional purple fountain grass. Next to it, lavender-flowering Mexican oregano (Poliomintha longiflora) has fragrant, edible, evergreen leaves. You can see the evergreen sedge lawnette in the background.


My favorite agave has to be whale’s tongue (Agave ovatifolia), a powder-blue agave that doesn’t pup but grows in an open, rose-like form. I also like evergreen softleaf yucca (Yucca recurvifolia), growing at left of the agave — and too close, unfortunately. In the foreground, blooming hot pink and attracting hummingbirds, is autumn sage (Salvia greggii). Its tiny, semi-evergreen leaves release a minty fragrance when you crush them or brush against them.


I also love wide-leaf giant hesperaloe (Hesperaloe funifera ssp. chiangii), a stately, more open and vase-like relative of the common red yucca. Its evergreen leaves are long and sword-like, although not particularly spiny, and white thread-like fibers dangle from their edges. A white-flowering Turk’s cap (Malvaviscus arboreus var. drummondii ‘Alba’) grows in front — not evergreen, but a nice companion in dappled shade. The white Turk’s cap is harder to find than the common red, but last week I saw some 1-gallons for sale at Barton Springs Nursery.

The only downside of using giant hesperaloe is that bucks love to rub their antlers on it in the fall and winter, smashing its beautiful form. So now I put rolled wire fencing around it from early fall through spring. And I do the same with my ‘Green Goblet’ agave, which the bucks will also antler-damage.


The side-yard path into the back garden is mostly evergreen with bamboo muhly, ‘Blue Ice’ Arizona cypress (Cupressus arizonica var. glabra ‘Blue Ice’), ‘Sapphire Skies’ Yucca rostrata, ‘Will Fleming’ yaupon (Ilex vomitoria ‘Will Fleming’), ‘Bright Edge’ yucca (Yucca filamentosa ‘Bright Edge’), and prickly pear (Opuntia).


I’m loving the totem-pole shape of my one surviving Indian fig opuntia (Opuntia ficus-indica). The others succumbed to a deep freeze one year. Indian fig is less cold tolerant than many prickly pears.


Peeking around the Yucca rostrata, you see a couple more hardworking evergreens, ‘Winter Gem’ boxwood and the ubiquitous live oak (Quercus fusiformis), which shades most of my garden and indeed most of my neighborhood, none of which were planted by human hands and grow as Mother Nature planted them in loose clusters.

This is my September post for Foliage Follow-Up. Fellow bloggers, what leafy loveliness is happening in your garden this month? Please join me in giving foliage its due on the day after Bloom Day. Leave a link to your post in a comment below. I’d appreciate it if you’ll also link to my post in your own — sharing link love! I look forward to seeing your foliage faves.

I welcome your comments; please scroll to the end of this post to leave one. If you’re reading this in a subscription email, click here to visit Digging and find the comment box at the end of each post.
_______________________

Digging Deeper: News and Upcoming Events

Get ready for fall garden tours in Texas! The Garden Conservancy is sponsoring Open Days tours in Fort Worth on Oct. 8th, San Antonio on Oct. 14th, and Austin on Nov. 4th.

Get on the mailing list for Garden Spark Talks. Inspired by the idea of house concerts, I’m hosting a series of garden talks by talented designers and authors out of my home. Talks are limited-attendance events and generally sell out within just a few days, so join the Garden Spark email list for early notifications. Simply click this link and ask to be added.

All material © 2006-2017 by Pam Penick for Digging. Unauthorized reproduction prohibited.

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