The center green band of these NOAA charts delimits the 20 year average for each day, the bottom marking the average minimum temp and the top marking the average high temp. The red and blue portions of the chart mark the range of temps between that and their record high and low levels. The dark blue ‘bars’ show the actual recorded temps for those days. This chart shows distinctly the initial cold span with the slight warming to well within normal range, followed by a more irregular cooling. The relative steadiness of these temperatures helped plants maintain their slower, more dormant metabolisms for the month. Typically February has been notable for the stability of its daily temperatures, the relative narrowness of the ‘green, normal, band’ indicates this.
This chart for March again shows the slowly warming/rising light green normal band contrasting with the dark blue bars of our actual temps. The March temps appear colder because they shifted the chart downward. The more extreme minimum temperature swings of Nov., Dec., and Jan. have even out, the lt. blue portion narrowing and showing more consistency.
It’s 41ºF at 5:30am on Mar. 12 as I begin to write this.We appear to have come out of the longest sustained ‘cold’ period of the winter of ’18-’19 which began on February 4 and continued through Mar. 11, a period of 36 days.Over those days we had freezing minimum temps at PDX, the official NOAA reporting station for the Portland area, on 26 of them.On two of those days, Feb. 6 and 7, PDX recorded the winter’s lowest temp, 23ºF, making it a zn 9a winter, mild for us historically and especially so for the temperate US as a whole, much of which was experiencing its own much colder temps.It’s mid-March and our high temps have climbed well above what they were and our forecasts call for milder, more ‘normal’ highs and lows now locally. It looks likely that not only are we going to be on the ‘warm side’ of normal, but that our lows have shifted into a pattern well out of the freezing range. (State ODF meteorologist, Pete Parsons, calls for a pattern of slightly warmer and drier weather than normal over March, April and May with the highest chance of this during May.)
While weather consists of moments, recorded data points, we attempt to make sense of it in its patterns over time…our experience of it.In this we are much like our plants.Plants too have their ‘expectations’ of the weather and those conditions that take them outside of them, outside their familiar patterns, the relatively quick changes and perturbations, as well as the longer sustained patterns, and extremes, are ‘noticed’ and make a difference.How does this winter compare?Continue reading →
Musa sikkimensis ‘Red Tiger’ taken three years ago…before this Tiger lost its stripes!
Musa sikkimensis ‘Red Tiger’ backlit. If I saw this plant in a nursery today, I’d be sorely tempted to buy it…again.
Another Jimi Blake plant. I have history with this choice of Jimi’s…and the NW has a history with Bananas as well!
There’s an old hand colored postcard floating around the Washington Park office of bananas as part of an elaborate bedding out scheme around the ‘Chiming’ Fountain, near the Sacajawea statue. If memory serves, it is Ensete ventricosum, which have a uniquely identifiable form. Back in the day, Ensete v. seems to have been a thing. It is a non-suckering species, unlike the spreading, mat forming Musa spp. and cultivars, and is commonly grown from seed. It is interesting to me that they were available prior to the 1900’s and relatively common, probably up to 1929 and the stock market crash…at least for the more horticulturally involved, as specimen in annual display beds. Gardeners must have dug them out in the fall and hauled them to greenhouses to ‘protect’ them for use in the following year. I did some research in the early ’00’s of catalogs and area nurseries to get an idea what was available in the 19 teens, and of a few Park’s planting plans of this period, influenced by the Olmsted’s and under the direction of Emanuel Mische…. Compared to typical planting plans of more recent years these were relatively adventurous, especially given that acquiring such plants was often a much bigger deal in the nineteens and twenties than it is today. Back then if you weren’t wedded to a particular clone and you could find seed for it, exotic bananas were a possibility. There was an excitement around the novel and exotic that had spilled over from Europe. Local inventories also included a wide array of bulbs which could be more easily shipped than grown plants widening the range of choices. They often times had choices that you would have to spend some time searching for even today. With the economic collapse of ’29 it is no surprise that tastes and possibilities became much more conservative. There were those who clung to the use of some of the old exotics, but you would have to look hard for them in public places and gardens. Botanical gardens became refuges for the forgotten and newly collected. It took many years before enough of the gardening population reclaimed their sense of wonder and awe enough to create a new market for the plant’s of the world. We experienced a similar contraction of the nursery industry in the Fall of 2008 when the real estate boom stalled and demand for plants collapsed causing the closure of many nurseries and a reduction in the selection available from local garden centers. Locally gardeners have become increasingly interested in such plants and have continued to support the many small specialty nurseries that provide them Continue reading →
This is from the catalog of Andre Brian a nursery in France as once again this particular variety is not very common in the trade here.
Another Choice Plant From Jimi Blake’s NPA Seattle Study Weekend Presentation
‘El Rayo’, in english is, ‘Lightning’! One should expect something pretty spectacular, flashy even, with this plant…or not. ‘El Rayo’ in Portland is a taqueria!…in Portland, ME that is. I would hope that the name of either doesn’t over sell their product! Does anybody know? About the tacos I mean? Gardeners should always be wary of cultivar names. While they serve as identifiers of a particular, and allegedly unique form or clone, and sometimes as a helpful and memorable descriptor, they can too often tread across the line into misleading hyperbole! Names are often assigned to a plant that have been in the trade for some time under other names. These ‘new’ and unique names are then ‘trademarked’, legally protected, as the nursery heavily markets the plant. The gardening public then comes to recognize and associate this protected name with the plant and begin to ask for it by that name. Unlicensed growers cannot supply the plant by that name and so some nursery producers carve out a larger share of the market. After experience we may come to recognize these marketing ploys…or not. Oft times a little celebration or indulgence is called for. Continue reading →
We woke up the morning of Jan. 11th with this about ten hours after the snow began to fall. What may have been more damaging was the extended period of cold weather through much of the month. It included too many days in which our high temps did not move above freezing. With the fronds bent down so much it was easier for water to move down into the trunk and do its freeze/thaw/freeze thing. Had I been on top of it I would have put an informal tent over it to keep this area dry and protected.
Last summer was a sit, wait and worry, summer. The previous winter of ‘16-‘17 was a hard one here. Because my Butia capitata had been sailing through its previous nine winters, in this location, without damage, I assumed it would be OK this time, but it wasn’t. Our 12” snowfall weighted the fronds down splaying it open and no doubt allowing moisture, ice etc. to penetrate down into the trunk to the meristem, the critical tissue from which all growth in the plant begins. Last summer not one new frond emerged, an indicator that the meristem was damaged or killed. The good thing was that there was no sign of rot. The new ‘spear’ could not be pulled free….The same winter killed my Trachycarpus martianus darkening and shattering much of the fronds’ cell walls and structure in a way typical of many freeze damaged plants. Its center spear, the newly emerging fronds, pulled free. My Butia spent last summer in a kind of limbo. This last winter was much more mild. Now, finally, with the heat settling in around us, those old spears are growing again, their leaflets opening wide, while their long rachis/stems, fully extend and arch! New spears are forming still pressed tightly against the most vertical and longest of these whose leaflets you can see below just beginning to fan open. This is slower growing than the Trachys, working on opening its third frond of the year! Typically my Trachycarpus fortuneii form 15-20 fronds in a year. I’m wondering now how this lost year of growth will effect the Butia’s trunk diameter. Because of how Palms as monocots grow, I suspect that it will result in a narrowing of its ‘waist’, with a swelling back to normal above when more normal winters prevail. Continue reading →