Presenting Autumn, Starring Rabbitbrush!

Chrysothamnus nauseosus_Rabbitbrush_Cylindropuntia_Cholla_ChicoBasinRanch-CO_LAH_2989-001With intense sulfur-yellow flowers covering its gray-green foliage, blooming Rabbitbrush demands to be noticed. In fact, the prairies of eastern Colorado are almost blanketed with it—something we never notice until it blooms. Interspersed with prickly cholla cactus and some perennial range grasses, it forms the essence of western landscapes. But it’s not just for the wide open spaces. Rabbitbrush is an excellent performer in the garden as well.

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A Plant by Any Other Name…

Blue Columbine - Aquilegia caeruleaHow do you pronounce Gomphocarpus physocarpus? What is it? And how can we ever remember how to spell it? What’s Aquilegia caerulea? You might know it as Colorado’s native Blue Columbine (right). Or how about Symphyotrichum novae-angliae? Isn’t it simpler just to say New England Aster? Scientific names are enough to drive gardeners crazy, so why in the world do we need to bother with them?

Scientific names, also called Latin names, can be annoying, but they serve a valuable purpose. We owe a huge thank you to Carl von Linné, the Swedish biologist who, back in the 1700s, invented what we now call binomial nomenclature. He also had the bright idea to use Latin, or at least to Latinize the words from another language, in order to avoid giving preference to any nationality. Scientists all around the world use the same Latin name to designate a particular species.

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Two Pestos You’ll Love

Basil @DBG LAH 175Summer is ending. For the past month, my potted basil plants have been doing their best to flower. I know that if I let them go to seed, they would die, so I’ve been pinching off the buds. However, now our nights are dipping into the 40s—too cold for these tropical annuals. Even if they don’t freeze, the chill turns the leaves black—not very appetizing. I’ve hauled the plants inside, but I can’t postpone the inevitable. It’s time to make pesto.

There’s no aroma quite like that of freshly made pesto, and that’s exactly what my kitchen smells like right now. I have two favorite pesto recipes, and I’d like to share them with you so your kitchen can smell this amazing too.

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September is for Rudbeckias

Rudbeckia - Black-eyed Susan_XG_20090826_LAH_9669Summer ends this weekend, but late-blooming flowers are far from finished. One can’t help but notice the conspicuous school-bus-yellow daisies, known as Black-eyed Susans, which thrive along our Colorado roadsides. (Most are Rudbeckia hirta, but other species also grow here.) Happily for us gardeners, there are cultivated forms of Rudbeckia that continue to brighten our home landscapes well into autumn.

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Putting Your Garden to Bed

I first posted this back in 2009, but (with one exception, below) my advice hasn’t changed. While I‘m off looking for migrating warblers today, you should be out in your garden. Here’s why:

  • carrot-sleeping-in-bedSpending time now on chores such as weeding and garden cleanup will reward you many times over when spring arrives.
  • Amending your soil this fall will give you a head start on next year’s garden.
  • Fall is also a great time to build a new patio or raised bed.
  • Protecting your less-hardy plants will increase the odds of them surviving a Colorado winter.
  • Winter’s cold weather is a great time to read articles, take classes, and prowl the Internet to become a more knowledgeable gardener.
  • And the most pressing issue? The weather gurus are predicting snow tonight and/or tomorrow!

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Plant Quiz Answers

DBG_LAH_1264If you haven’t tried to identify the plants in my quiz, back up to last Thursday and try your hand before reading any further.

So, how did you enjoy trying to ID various random plants from a photo or two? I think it’s fun, which is why I love my job. Sometimes I know the answer off the top of my head (number 1, for example) while others have me tearing my hair out while I track them down (such as number 8).

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It’s Time for a Plant Quiz!

1. DenverHow well do you know your plants?

For the past few years I’ve posted a monthly bird quiz. I hope you’ve enjoyed the challenge. This morning, as I identified plant after plant for my GardenCompass.com clients, I suddenly wondered why I have never created a plant quiz—so I did. Now you too can experience the joys and frustrations of identifying random plants.

I’ve attempted to provide you with a realistic demonstration of what I do. Therefore, all I’m telling you is where the photo was taken. (The Garden Compass app has a GPS feature.) I’m responsible for answering questions from all the mountain states, from New Mexico and northern Arizona to Idaho, plus Nebraska and both Dakotas, but for this round, I stuck to plants seen in Colorado.

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Too Much Zucchini 2.0

_20140820_154412.jpgOne of our daughters lives north of Seattle, where plants like to grow. She just called, all excited to tell me about her veggie garden. It seems that last year she planted six zucchini seeds, and none of them survived. She was a novice gardener and planted the seeds too deeply. Then, the  local rabbit population gnawed off the two sprouts that managed to reach daylight.

_20140820_154644.jpgThis year, a bit wiser, she decided to try again. There were a dozen seeds left in the packet. Assuming that she would get a similar germination rate as the previous summer—after all, these were old seeds, right?—she went ahead and planted all twelve seeds. Yes, twelve. Even better, she planted them six inches apart along the 4-foot wide end of her raised bed!

You guessed it. Ten of the twelve seeds sprouted and rapidly grew into vigorous, prolific squash plants. Did I mention that she only has a small, 4 x 8 foot raised bed? You can see her monster zucchini plants in these photos. (That is one huge zucchini leaf, and her hand for comparison!)

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Blue Mist Spiraea

Caryopteris clandonensis_Bluemist Spirea_XG_ColoSpgs-CO_LAH_5819Spring flowers have turned into berries and seed pods. Without their blossoms peonies are mere green bushes, and even the annuals are looking a bit peaked. Don’t despair, however. The show isn’t over yet. One of the best perennials (or small shrubs) for Colorado gardens is Caryopteris x clandoensis, more familiarly known as Bluebeard or Blue Mist Spiraea.

The latter common name can cause some confusion. Caryopteris isn’t a true spiraea. The “Blue Mist” part is spot on. The airy flowers in periwinkle blue really do seem to hover over the tips of the stems in a lovely cloud. The plants can reach two to three feet wide and tall. Foliage is a bluish gray-green, with long, soft, serrated leaves.

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Botany for Gardeners: Photosynthesis (part 2)

Food begins with photosynthesis
All food begins with photosynthesis

(If you missed last week’s post about how photosynthesis works, you might want to read it now. I’ll refer to it below.)

As gardeners, we all want to grow healthy plants. Knowing what they need is helpful, but knowing why they need it is even better. Today I’m going to go over what plants need in order to feed themselves—and us. That’s what photosynthesis is for.

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