Garden Advice: Ten Gardening Myths: Busted!

  • mason-bee-house-this-old-houseShould you top a tree to keep it within bounds?
  • Will a mulch of Ponderosa pine needles acidify the soil?
  • Should you always add compost to a planting hole?
  • What about encouraging native bees with a bee house?

A lot of what gets passed from gardener to gardener sounds like good advice, but has no benefit—or can even be harmful. Which practices are supported by research? Which should we forget about?

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Microclimates Matter

nga-app-planting-guideThe link promised to tell me when I should start my vegetable garden—when to sow seeds indoors, and when to sow or transplant outdoors. Just type in my zip code, and I’d have information customized for my area, courtesy of the National Gardening Association. I rarely click on ads, but I’ve found the NGA to be helpful in the past. Besides, I was curious. I have 24 years of records telling me when to plant in my area—how would their site measure up?

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Stay Dry, See Tropical Plants

wwseymourconservatory-tacoma-wa_lah_0512I love to visit Washington. The state is a gardener’s paradise.  All those dreary days translate into brilliant azaleas and rhododendrons, ferny grottoes, and towering evergreens. The trick is enjoying those gorgeous gardens when it’s raining—and it rains a lot. Sure, you can visit in the summer, when days are sunny and the sky is a sapphire blue. But what about right now?

One way to get out of the February cold and wet is to visit a conservatory. (This applies to cold and snowy Colorado, as well.) And one of my favorites is the W. W. Seymour Botanical Conservatory, located in the 27-acre Wright Park Arboretum, Tacoma. This glassed enclosure houses over 250 species of tropical and semi-tropical plant, including 200 different orchids—just the antidote for a gloomy winter day.

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Violas Make Me Smile

viola-sp_violet_dbg_lah_4917What genus of flower is beloved by millions? Comes in every color of the rainbow (except green), plus black and white? Has species native to Hawaii—and the Andes? Can bloom through the snow in the dead of winter? Is tolerant of wet soil—or survives drought? Handles full sun or shade with equal enthusiasm? Includes annuals, biennials, and perennials? Always elicits a smile? Is the “birth flower” of February? The lowly Violas—which include pansies and violets—are all this and more.

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Garden Advice: Baking Soda Balderdash

baking-sodaType “baking soda garden” into your web browser and you get over a million hits. Not surprisingly, most are something along the lines of “17 Smart Baking Soda Tips,” and “7 Natural Uses for Baking Soda.” Depending on which list you read, it sweetens tomatoes, increases the blooms on geraniums, begonias, and hydrangeas, prevents black spot on roses, cures powdery mildew, discourages soil gnats, and kills slugs and other harmful insects “while not harming beneficial insects.”  (So tell me—how does it know which are the bad bugs?) Plus, it’s natural, cheap, and readily available.

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Seeds to Start in January

geranium-bold-charm-rose-csu-lah-162For an avid gardener, January can be a difficult time of year. Sure, we can dream. The seed catalogs that have been arriving for a month now are filled with post-it notes, dog-eared corners, and bright yellow highlights. At the same time, I’ve decided and re-decided (at least a dozen times) where I’m going to plant each seedling once the weather warms. I love the optimism of dreaming, but sometimes I just want to get my fingers into some soil—even if the “soil” came out of a bag of potting mix.

At this time of year, gardening outside is pretty much impossible. The ground is frozen, and there’s still a layer of snow in the shadows on the north side of the house. Besides, it’s cold out there!

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A Tropical Paradise

botanicgardens-singapore_lah_7427Last November I took you on a virtual tour of the Royal Botanic Garden in Sydney, Australia. Today we’re going to visit the Singapore Botanic Gardens. According to Wikipedia, “It is one of three gardens, and the only tropical garden, to be honored as a UNESCO World Heritage Site.” One visit, and it’s easy to see why.

The gardens were first planted in 1859 and presently contain over 60,000 plants. The place is huge—it took us hours to walk from one end to the other, but then I had to stop and appreciate every plant (and bird) I passed.

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A Flower of the Gods

dianthus-tiny-rubies-1Just as each month is associated with a particular birthstone (January’s being a garnet), so is each month paired with a particular flower. According to folklore, each of these flowers symbolized specific characteristics, which were in turn assigned to those born during that month. While some claim this custom arose with the Roman empire, I suspect that the florist industry might also have had something to do with it.

Well, it turns out that January’s “birth flower” is the carnation. Carnations are on my Top Ten list of flowers. They’re pretty, typically inexpensive, last a long time as a cut flower, and have a scent that I swoon over. Apparently, I’m in good company. Their genus, Dianthus, comes from the Greek for “flower of the gods.” How appropriate! (more…)

Love Poinsettias? Thank a Phytoplasma.

poinsettias_20091218_plh_5604For many of us gardeners, poinsettia plants are an essential element of our Christmas decorating. I love the huge displays at church and in the stores, even if I don’t have room for that many in my home. I’ve written about how to keep the plants alive (see my 2012 post on “Pretty Poinsettias”). But this year I learned something new.

When I was small (I had my sixth birthday on the trip), my parents and I spent four weeks traveling around Mexico, from early December to early January. It was a wonderful time to visit, with all the Christmas and New Year celebrations. One common sight we couldn’t miss were the gardens full of bright red poinsettias in full bloom.

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