Why Roses are Red

Rosa @DBG LAH 016Color. It’s probably the primary reason we grow flowers. Yellow daffodils and red roses, irises in every color of the rainbow. Without flowers, our yards would be much more subdued. Gardeners rejoice in the options available, but why do flowers come in so many colors in the first place? What do they get out of it?

For one thing, not all flower colors arise in nature. Plant breeders have spent centuries coaxing new combinations from the available genes—even inducing mutations to increase the possibilities. The wild roses that grow in our foothills range in color from pale to deep pink, but at the garden center I can buy rose bushes that produce blooms of yellow, peach, salmon, orange, lavender, burgundy, pure red, and white—or even combinations of these. Petunias were originally a pinkish lavender. Now they come in every hue except green.

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Checklist Changes

Yellow-rumped Warbler- Myrtle's_Patagonia-AZ_LAH_3751Many serious birders keep a life list of the bird species they’ve seen. We can tell you exactly how many birds are on that list, and there’s great excitement when we can add a new “lifer.” We may also have a list of “target birds,” those not yet seen, and we often spend considerable effort tracking them down. But once a year, we have an opportunity to add a new bird or two without lifting a finger.

All year, ornithologists are busy debating bird taxonomy. They present evidence—behavioral, morphological, a new DNA analysis, etc.—to support their opinions as to which species need to be split into two, which need to be lumped together as one (perhaps as subspecies), which need to be moved to a different genus, and other taxonomic changes. Every July, the AOS (American Ornithological Society) publishes the agreed-upon changes, and we all scramble to update our life lists.

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(Not Just) Purple Coneflower

Echinacea purpura_Purple Coneflower_XG_ColoSpgs-CO_LAH_5655

Purple Coneflower (Echinacea purpurea) used to be purple. You can still buy the purple-flowered version of this perennial (actually more of a pink, at least to my eye), but purple is only the beginning. Consider passionate hues such as raspberry pink and florescent orange. On the other hand, perhaps you’d prefer delicate pinks, or even an innocent snowy white. A related species, E. paradoxa, below, is a pure lemon yellow.

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Garden Advice: Don’t Buy Ladybugs

Ladybug_XG-CoSpgsCO_LAH_9349Every gardener knows that ladybugs are “good” bugs because they eat “bad” bugs. Educated gardeners know that ladybugs are actually beetles, and that they eat aphids, scale insects, immature beetles and true bugs, and mites. The adults are efficient predators; the larvae are even more voracious. No wonder we want lady beetles in our gardens!

The simplest way to get lots of these colorful beetles is to buy them, and many people do just that. It’s a huge industry. However, buying ladybugs is largely a waste of money, and may even harm the environment! There are better ways to attract not only ladybugs but other beneficial insects as well.

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Garden Synergy

LAH_1195Does this pink look too garish? Should I match it with orange—or cream? Or would the gray be better? One of my favorite aspects of gardening is coordinating flowers. Sure, each plant is a beauty all on its own but, just as a decorator pulls together matching and contrasting colors to produce a total look, so the creative gardener selects flower and leaf colors that complement one another, creating a composite whole that outshines any single plant.

The first summer in our new home, we simply added basic landscaping—retaining walls, trees, large shrubs, planters, and the lawn. Our yard was mostly mulch with little green dots scattered throughout. Think of a living room with the couch, a couple of chairs, and an end table or two, but no rug on the floor, pictures on the wall, pillows on the couch, or books on the coffee table. It looked pretty bare. (more…)

Birding Down Under: Queensland Excursions

wongabelnp-qld-australia_lah_3794Tropical rainforests. That was why we had come to northeastern Queensland. I had romantic visions of colorful birds, stunning flowers, perhaps a python or two. Now that we were finally there, it was time to see if my fantasies had any basis in fact.

Our first excursion was to Eubanangee Swamp National Park, south of Cairns. The terrain was rolling grasslands and scrub interspersed with tracts of forest, mostly in the valleys. Cloud-shrouded mountains loomed in the distance. I figured that the edge habitat would be an excellent place to find birds, but the trails were so dark and the foliage was so dense, I was quickly frustrated. Clearly, I need to work on my “birding by ear” skills!

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Garden Advice: Don’t Prune that Crown!

Quercus_Oak_COS-CO_LAH_1854It’s a common question. You’ve just planted a new tree. In the process, the plant has lost a significant portion of its roots—sometimes up to 95 per cent! Should you prune back the crown to compensate?

The intuitive answer would be yes. We assume that with fewer roots, there’s no way the plant will be able to sustain all that foliage on top—and that’s the advice I see on website after website. But if you do decide to prune, you’ll be doing the tree a disservice. You might even kill it! How can this be?

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