Mar 29th, 2021

Cogon Grass: A “Dirty Dozen” Plant

Cogon grass (Imperata cylindrica) is considered one of the top ten worst invasive plant species in the world. Even with its less-than-stellar reputation, it is a popular ornamental plant. Though […]

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Mar 26th, 2021

Italian Arum: A “Dirty Dozen” Plant

Our “Dirty Dozen” plant of the week is Italian arum (Arum italicum). Even though Washington is the only U.S. state to officially recognize arum as invasive, our horticulture staff have […]

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Mar 18th, 2021

Cicadas – a Concern for Gardeners?

If you’ve been paying attention to the buzz, you may have heard about a special type of cicada that’s set to emerge by the millions on parts of the East […]

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Mar 14th, 2021

Planting for Nature’s Best Hope

Teddy Roosevelt stood on the rim of the Grand Canyon in 1903 and, looking out across the country’s 1.2-million-acre National Park, made an impassioned plea to the American people. “Leave […]

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Mar 8th, 2021

Virtual Field Trip Packages

While your “field trip” to your backyard or local park may have been exciting at the beginning of the “stay at home” era, you might be ready for a change […]

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Mar 4th, 2021

Nandina: A “Dirty Dozen” Plant

This week, we are highlighting invasive Nandina domestica, commonly known as nandina, heavenly bamboo and sacred bamboo. Despite the name, this member of the Dirty Dozen is neither a true […]

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Feb 25th, 2021

Lenten Rose

If you ask my favorite flower, I will have trouble answering. It depends on the time of the year, my mood, and if I’m growing it in my own garden.  […]

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Feb 14th, 2021

Love Letters to Nature

Are you writing love letters to anyone special this Valentine’s Day? Remember that love isn’t just about romance! Love includes being grateful for those who bring you joy, whether that’s […]

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Feb 11th, 2021

Citizen Science in Your Backyard!

Calling all birders, bird enthusiasts, and even the bird curious. The annual Great Backyard Bird Count is quickly approaching, and YOU have an opportunity to participate in something global and […]

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Feb 10th, 2021

Instagram GardenFest Contest

The GardenFest Instagram contest has become one of our favorite holiday traditions. It’s a wonderful way for us to reflect on a season of festivities, joy and see how our […]

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Feb 6th, 2021

Tree-of-Heaven: A “Dirty Dozen” Plant

This week we are featuring tree-of-heaven (Ailanthus altissima) as our “Dirty Dozen” plant. While this tree may have been used in folk medicine or even as an insecticide, it is […]

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Feb 6th, 2021

Crape Myrtle: Pruning

February is the time of year you may notice stark “stubs” of crape myrtles in parking lots and other areas around town. Often crape myrtle is so harshly pruned only […]

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Feb 1st, 2021

Oriental Bittersweet: A “Dirty Dozen” Plant

This week’s Dirty Dozen plant is oriental bittersweet (Celastrus orbiculatus). Since it is still available in the horticultural trade, we hope that the following information will convince you not to […]

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