the Climbing Onion, Bowiea volubilis

It must be pretty obvious by now that I’m refusing to look at the big, end-of-summer picture. So I’m offering another micro plant portrait, the South African Climbing Onion. Logee’s calls Bowiea volubilis “an old favorite.” If so, this old favorite seems to have fallen out of favor and tumbled back into obscurity. The first time I clapped eyes on it was this year’s Venice Home & Garden Tour 2013, and neither I nor the garden owner had a clue to its identity. The climbing onion I saw in the Venice garden was grown as a hanging plant, a mysterious cascade of bright green, filigreed leaves spiraling out of its pot. Lush, ferny and utterly drought tolerant. I grabbed the owner’s elbow and inquired after its identity. He led me to another one, planted in the ground.

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And there it was, improbably geysering up a tomato cage. The garden owner found a small bulb near this plant and gave it to me. (Again, thank you!) That little bulb has yet to sprout.
A winter-growing houseplant in colder zones, the Venice climbing onions I saw in May were obviously thriving outdoors through a zone 10 winter and early spring.

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Dustin Gimbel, with his Sherlockian knowledge of plants, is the one who identified this mystery as the climbing onion, and then later found a couple enormous bulbs which he left on my porch. There didn’t seem to be much shaking with the climbing onion for the longest time after I repotted it, and I stopped checking it daily. All I had to remember it by was the tomato cage photo. Maybe it wasn’t so special after all. Meanwhile, the climbing onion got busy.

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The climbing onion was waiting for the end of summer to resume growth. When I next took notice, it was putting on quite the performance.

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I’d always intended to grow it as a hanging plant, but now I’m not sure if I want to interrupt this dialogue its having with the rusty table.
If anyone would like to try the little bulb that was gifted to me, I’d be happy to send it on. A time-lapse video and more cultural information can be found here.


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Agave ‘Shira ito no Ohi’

Or, more specifically, Agave filifera ssp. schidigera ‘Shira ito no Ohi’ (Queen of White Thread Century Plant). No one seems to know the origin of the variegated form of this wee agave with the big name, whose queenly title was bestowed by Tony Avent of Plant Delights. Another gorgeous agave for containers, I slipped mine from its confines this summer and released it into the garden, hoping to push its speed of growth up a bit. At maturity, it won’t be much larger than a foot across. I don’t typically grow sharp, spiky plants in the back garden, which gets changed up often. That’s what the front gravel garden is for. But this slow-growing agave’s single rosette is not destined for intimidation, just endless fascination.


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Agave filifera ssp. schidigera ‘Shira ito no Ohi.’ Nice threads.
Another Mexican succulent, Echeveria elegans, the Mexican Snowball, providing scale.
If memory serves (and it often doesn’t), it was this echeveria that designer Kellee Adams said was the most sun-tolerant at the Wave Garden in Richmond, California, a stop during the 2013 Garden Bloggers Fling.


In an August 22nd lecture on “The Amazing Plants of Mexico,” Brian Kemble, Curator of The Ruth Bancroft Garden, pointed out that this agave’s famous threads are a recessive trait. When crossing a “thready” agave with one lacking threads, progeny will always be threadless. In case you were wondering.

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this summer’s dahlias

I moved my one dahlia, the deep burgundy ‘Chat Noir,’ to my community garden plot this summer. Performance was…meh. By August the plant was finished. The soil at the CG still needs work if it’s to grow anything but zinnias and kale. Maybe next summer.

On the subject of next summer, a dahlia I’d be interested in trialing at the CG would be varieties of Dahlia coccinea. At the Mendocino Coast Botanical Gardens this past August, it wasn’t the carefully staked varieties in their exclusive dahlia show garden I was interested in, but the dahlia I found growing in a rambunctious tumble of sunflowers and artichokes against the fence in their vegetable garden. The leaves were fresh and healthy, the flowers abundant and proportionate to the plant. This dahlia calls to mind the flower the Spanish explorers would have seen blooming in Mexico in the 16th century. (“Spaniards reported finding the plants growing in Mexico in 1525, but the earliest known description is by Francisco Hernández, physician to Philip II, who was ordered to visit Mexico in 1570 to study the ‘natural products of that country.'”)

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Dahlia coccinea ‘Orange.’

From the Wikipedia entry on dahlias: “In 1787, the French botanist Nicolas-Joseph Thiéry de Menonville, sent to Mexico to steal the cochineal insect valued for its scarlet dye, reported the strangely beautiful flowers he had seen growing in a garden in Oaxaca. In 1789, Vicente Cervantes, Director of the Botanical Garden at Mexico City, sent “plant parts” to Abbe Antonio José Cavanilles, Director of the Royal Gardens of Madrid. Cavanilles flowered one plant that same year in his Icones plantarum, then the second one a year later. In 1791 he called the new growths “Dahlia” for Anders Dahl. The first plant was called Dahlia pinnata after its pinnate foliage; the second, Dahlia rosea for its rose-purple color. In 1796 Cavanilles flowered a third plant from the parts sent by Cervantes, which he named Dahlia coccinea for its scarlet color.” (my emphasis)

For more on that “cochineal insect,” read here.

Annie’s Annuals & Perennials carries a nice selection of Dahlia coccinea.

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the hardy tapioca

A garden can be a stay-at-home option to ecotourism, where the plants pack their seedy suitcases and travel to us. (If growing any exotic, non-native plant sets your teeth on edge, those categories may be blurring faster than we’d like: “A new study from the University of Exeter and Oxford University finds that plant pests and diseases have been migrating northward and southward an average of two miles a year since 1960. This suggests that the plants on which they prey have been moving at similar rates.” – “Hey, You Calling Me An Invasive Species?” Tne New York Times 9/7/13.)

I’d wager there’s probably a civilization-defining plant in every garden. Acanthus, rice paper plant, papyrus, flax. All movers and shakers in human history. Take the manihots, which some of us might have sampled as kids as a sweet, sticky pudding. (It’s the tropical with that easy-to remember name, man, it’s hot). Tapioca pudding, as I remember it, looks an awful lot like what they ate for breakfast in The Matrix. The pudding comes from the tropical tapioca, Manihot esculenta. Not to be mistaken for sago pudding, made from sago palms (as if I knew that before writing this post). Tapioca is a gluten-free starch, a staple in many tropical countries, known by various names like manioc, cassava. The noble lineage of plants in their countries of origin is often uncovered only after we’ve capriciously selected them for their pretty leaves or flowers. They’re like little icebergs bobbing in our gardens, so much of their identity submerged beneath the surface.

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This is not the tapioca-making Manihot esculenta, but the so-called hardy tapioca, Manihot grahamii, zoned 7 to 10, from Brazil. For a tropical, it doesn’t mind life on the dryish side either. Its ambition is to become a small, somewhat gangly tree, sprouting those beautiful leaves in a tuft at the top. But now I can confirm that when cut back mid-summer, it will send shoots from the base, which allows for a much nicer view of those spectacular leaves and red stems. Just as gardens in colder zones than mine do, I’ve been growing mine in a large pot for several years.

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cage lights


Cage lights, suspended for hanging candles, flowers. I love messing around with them.

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last night

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early this morning

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About the same size and shape as a cage light, this orange shade was found a while back at Building Resources and seemed full of potential for…for exactly what, I wasn’t sure, but I bought six of them.
The rim makes it easy to rig for hanging.

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warm thoughts on formal gardens

Have I mentioned how hot it’s been lately?

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It’s the kind of heat that gives a boho plant nut a deeper appreciation of the cool, austere lines of a formal garden.

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A garden built not on the scaffolding of flowers but leaves, eschewing lush variety for lean repetition.

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It’s the kind of heat that makes the formal garden, that ancient response to dry climates, seem fresh and innovative again.

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Katherine Spitz’s garden, Mar Vista, California, 2012 (Katherine Spitz Associates)

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That’s how hot it’s been.

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September and its discontents


Every September I’m startled by the heat this month brings.
A heat that, if you’re not careful, can wick away inspiration.
But then that’s what photos like this are for.

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Image found here

At least two more months to go before the winter rains.
Right now, if I had a backhoe, I’d dig up the garden and make it a place for the worship of water.



more on photographer Philip Dixon’s house in Venice, California can be found here.

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Yucca ‘Blue Boy’

I’ve brought a couple home under the name Yucca aloifolia ‘Purpurea,’ but I’ve recently been seeing it tagged as Yucca desmetiana ‘Blue Boy,’ as it was here at Cornerstone Sonoma, in the Transcendence garden designed by Delmar McComb and Peter Hanson. This yucca’s soft, recurved leaves are very unlike the typically stiff leaves of Yucca aloifolia, so we seem to be shuttling between various names until the nomenclature is definitively settled. Mine haven’t colored up like these yet, which is a big part of the allure of this mysterious yucca.


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Background shrubs are phlomis, rosemary and leucadendron.

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counting on agaves

No, I haven’t done a recent tally. But, boy, do they ever count when the days heat up and stay hot. Nothing looks as composed under the sun as an agave.

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Hard to say if their numbers are increasing, since I’ve been giving away the large americanas and seeking out smaller, slower-growing kinds. New to the garden this summer, found at a recent succulent show, Agave ‘Snow Glow,’ kin to ‘Blue Glow,’ both Kelly Griffin’s hybrids.

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Not new but one of the few agaves I own that still looks like it just came off a grower’s bench. Three offsets of this dwarf butterfly agave ‘Kissho Kan’ are making good size in the front gravel garden. Good size for a dwarf, slow-growing agave.

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The mother plant has grown so snug in its small pot that dunking it in a basin is how it gets very occasionally watered now. Keeps the leaves bright and shiny too. Looks like a mean water lily, doesn’t it?

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Sweeping jacaranda leaflets off the bricks at the front of the house this morning, I noticed that Agave desmettiana is beginning its monocarpic death dance and will be throwing a bloom stalk very soon, after which it will expire in that dramatic, Madame Butterfly flourish that ends the life of every agave. So subtract one desmettiana.

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For once it’s an occasion I’ve actually been looking forward to since the Acacia podalyriifolia is getting tree-like fast and needs a lower-growing understory.

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Agave parryi ‘Cream Spike’ finally showed up at nurseries this summer in less pricy sizes, another small agave that can remain in its pot for some time.

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The big agaves are undoubtedly an awe-inspiring sight, but a small garden can support only so much awe. Thank goodness for the little ones. All the essentials for late summer on a small table.

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scenes from Long Island

It looks like the heat is fairly evenly distributed across the U.S. this Labor Day weekend. In between dipping into a steaming hot garden to cut back agastache, anthemis and senecio, I’m catching up on work and going through summer photos, a much cooler occupation than tangling with rampant summer growth. How different were the mild days of late June when a group of us toured Long Island, New York, which has a vibrant garden culture. I had expected Long Island’s weather to be pretty much what I’m experiencing now, hot and muggy, but it was the mildest, most deliciously cool touring weather one could hope for.


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Madoo Conservancy

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Longhouse Reserve

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A charmer in a container, Aruncus aethusifolius. Longhouse Reserve

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gesneriad in the greenhouse at Old Westbury Gardens

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Old Westbury Gardens

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Immaculately kept greenhouse at Old Westbury Gardens

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Tender exotics like Solandra maxima, the cup of gold vine, at Old Westbury Gardens.

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Tropical vireya rhododendrons

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If begonias are the next big thing in plants, Long Island definitely got the memo. Old Westbury Gardens.

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Old Westbury Gardens

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Old Westbury Gardens

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Old Westbury Gardens

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Possibly Alcantarea imperialis, a giant among bromeliads and a favorite of Roberto Burle Marx, at Old Westbury Gardens

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Long Island nurseries were bursting with tropicals which will flourish in the heat and humidity

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A jubilant celebration of the arrival of summer permeated the island

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Preparations for a midsummer’s eve party

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Rex begonia vine, Cissus discolor

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Garden of the owners of Landcraft Environments, growers who specialize in tender perennials and unusual annuals.

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Curving dry-stacked wall backed by a meadow blooming Knautia macedonia in June, Landcraft Environments

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Landcraft Environments

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Clematis integrifolia as ground cover, Landcraft Environments

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Landcraft Environments

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The entryway parterre at Landcraft Environments planted in color blocks of berberis

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The meadow in June at Landcraft Environments, with lysimachia and knautia in flower

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Landcraft Environments

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Landcraft Environments, greenhouses in the distance


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