Sunday, December 07, 2008

Buddleia

What’s still green: Juniper, arborvitae and other conifers, roses, yucca, prickly pear, honeysuckle, red hot poker, iris, vinca, rock rose, yellow evening primrose, blue flax, sea pink, winecup, pinks, soapworts, bouncing Bess, snapdragon, golden spur columbine, Saint John’s wort, catmint, fern-leaf yarrow, tansy, senecio, Mount Atlas daisy, Mexican hat, June and other grasses. Russian thistles breaking loose; ditch meeting this week.

What’s gray, gray-green or blue-green: Piñon, winterfat, saltbush, buddleia, loco, snow-in-summer, yellow alyssum, Silver King artemisia.

What’s red: Raspberry, cholla, privet, coral bells, white and coral beardtongues, pink evening primrose.

What’s turning yellow: Apache plume.

What’s blooming inside: Aptenia, rochea; first bud on Christmas cactus.

Animal sightings: Last Sunday migrating birds made a great din overhead, but the scattered dark specks kept disappearing into the cloudless blue sky when they changed direction and stopped reflecting the sun. The only thing I know is they weren’t geese, for they neither honked nor flew in formation.

Weather: Mornings mostly cold, nights mostly clear and starry; last rain 11/27/08; 8:31 hours of daylight today.

Weekly update: Whoever it is who decides what plants to ship to our local hardware stores always sends things that can’t survive here. Every year people buy the brilliant, cerise-flowered Salvia greggii, variously described as zone 6, 7 or 8, but are more cautious with unknowns that aren’t in flower. One woman walked away when the clerk told her the maple she was looking at needed to be taken in for the winter.

Then, at the end of the season, when these inappropriate perennials are on sale with 50% price reductions, some are willing to gamble. Two years ago, the overstocked stranger was Buddleia davidii. I bought two Monum at my local hardware that were immediately eaten by grasshoppers, then I tried two Black Knight from a Santa Fe big box that I immediately sprayed.

Someone down the road must have taken the entire remaining inventory of the plum-colored Monum, and this summer had three-foot bushes on irrigated land out by an outer wall. The butterfly bushes began producing lilac-shaped racemes at the ends of new stems in mid-July that continued into September. Mine were attacked by grasshoppers again, and grew only a foot with sporadic blooms in August.

But now my shrubs are doing something extraordinary - putting out new growth when our early morning temperatures are falling in the low twenties. Furthermore, Julie Ream says, if my tubular Black Knight florets managed to be fertilized, the seed is still maturing and will be disbursed sometime in January, while some Hungarians discovered they could root cuttings in sand in greenhouses kept as low as our daytime 45 degrees.

Seeds for these Scrophulariaceae were first sent to Kew Gardens from Yichang near the gorges on the Yangtze in western Hubei where the British had forced an open port in 1876 after the Second Opium War. The area was known for the quality of its tea leaves and oranges, and the first customs officer, Augustine Henry, was looking for new medicinal plants in 1887. Most modern varieties are derived from stock grown at the Jardin des Plantes and sent to Kew in 1895, perhaps from seed collected in the 1860's by a French missionary, Armand David.

Reginald Farrer became fascinated by plants in an abandoned quarry when he was a teenager, and, after leaving Oxford for a visit to China in 1902, returned to England to write a popular book describing his rock garden in 1907. The following year he raved about Buddleja variabilis, as it then was called, saying it was as luxuriant and gorgeous as any tropical, hardier than many lilacs, and bloomed in August.

At the same time, he converted to Buddhism, then returned to China a few years later with William Purdom to visit Gansu in the Tibetan borderlands. Among the seeds they sent back to Kew in 1914 where those for a dwarf davidii subspecies, nanhoénsis. The species is polyploidic and thus can easily produce genetic sports that may or may not survive.

The intrepid traveler visited Arras in war-ravaged France after the first World War, and came upon a Buddleia gone wild in the rubble, "exactly as I last saw it on the shingles of Tibet." Some sport of the plant naturalized on the lime debris of London during the Second World War, and many now fear it may become as invasive on the gravel edges of stream beds as it has in the kiwi plantations of New Zealand.

Before it was condemned by environmentalists and banned from gardens in Washington and Oregon, nurseries periodically introduced new cultivars by selecting mutations, including Peace in 1945. Ruy promoted the hardy Black Knight in 1959 which, coincidentally, produces less seed than most varieties. Monrovia introduced a cultivar of nanhoénsis in 1984 as Petite Plum or Monum for smaller gardens.

It’s since been the object of research by botanists trying to find better growing methods for nurserymen and by others trying to find ways to kill it. Farrer himself wondered who had planted the cherished "new rare treasure" he saw in Arras, before adding "not that it matters, or can make any difference to this scene of sordid modern ugliness in ruins." Perhaps it was a similar swing in taste that exiled this unwanted, paradoxically heat loving, cold thrifty plant to the shelves of Española. Farrer, himself, died in Burma in 1920 looking for more plants.

Notes:
Farrer, Reginald John. Alpines and Bog Plants, 1908.
_____ My Rock Garden, 1907.
_____ The Void of War: Letters from Three Fronts, 1918.

Ream, Julie. Production and Invasion of Butterfly Bush (Buddleia davidii) in Oregon, 2006.

Újvári, Melinda and Gábor Schmidt. "Mini-cutting Propagation - A New Way for Propagation Semi-shrubs," no source provided, available on-line.

Photograph: New growth on Black Knight buddleia with iris in back, 30 November 2008.

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