Fall is the best time to plant in hot dry gardens. The soil has now cooled enough that the roots of new, young plants won’t die from being enveloped by hot summer dirt. And summer dirt can be really hot: up to 140 degrees F (60 degrees celsius!) in direct sunlight. At that temperature the roots “cook” and if the roots get cooked, the plant dies. So do your planting now. Over winter, the roots will have plenty of time to toughen up and spread deep into the earth before the heat comes back next year.
Now I have a few suggestions for what to plant this Fall for a White Garden for nighttime enjoyment next summer.
A famous garden reinvented for the Southwest
First a little background: the White Garden was “invented” by author Vita-Sackville West when she designed a garden room at Sissinghurst Castle in the U.K. with plants that only produced white flowers. It was a radical idea for that time, the mid-20th Century. In fact, the White Garden vaulted her into fame as a garden designer and horticultural columnist for the London Observer. (She was already famous–maybe infamous–for her personal scandals and novels!)
So borrowing her idea–although not the plants she used in cool, damp Kent in southern England–here is a slide show with a few plants to use in a White Garden in the American Southwest.
In addition to these white flowering plants you could also include dwarf White Oleander, White Jasmine Vine, white Iris, or Texas Wild Olive. Be careful with the Texas Wild Olive, Cordia Broissiere, because the seeds are slightly toxic to humans. Birds, however, love them. Also take care with the Oleander, all parts of it are poisonous.
Plants with variegated or silver leaves can also add luminousness and be reflective in a nighttime garden.
Even if you are not interested in a white garden room, adding white blooming plants to an otherwise color-filled or all-green garden brings a spark of interest and contrast to the other plants.
Full Disclosure: I have visited Sissinghurst Castle to see Vita Sackville-West’s garden rooms. The book she wrote about her gardening ideas, “Sissinghurst” is available on Amazon. Someone, not VSW who passed away in 1962, is posting on Twitter using the handle @thegardenvsw . The tweets, taken from her writings and accompanied by photos, are always very interesting.
A reminder for Fall: be sure to add organic mulch around plants in your garden and, if possible, dig it in without disturbing the roots. Also avoid using mulch that has peat in it. From what I read from U.K. gardeners peat retains carbon which helps slow climate change. Better for all of us for the peat to remain buried in bogs rather than scattered around our gardens.
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