umbellifer time: angelica gigas, sedum and more

A quick way to clean the algae out of a garden water feature after a long, dark, and wet winter is to use a power washer. It only takes a few minutes to dislodge the long mats of algae, and the low volume of water that blows out of the nozzle doesn’t disturb even the smallest of rocks. Start at the top of where the water flows and work your way down to the bottom of the feature. This is a lot easier and more effective than grabbing the strands by hand and then using a brush to clean the rest away. You can see the difference in these “before” and “after” photos. I enjoy this a lot more than power washing the patio.

As native grasses such as little bluestem (Schizachyrium scoparium and cvs., Zones 3–9) and prairie dropseed (Sporobolus heterolepis and cvs., Zones 3–9) increasingly gain traction in gardens, exotics such as miscanthus (Miscanthus sinensis and cvs., Zones 4–9) are losing favor because of their invasive tendencies. But not all exotic grasses are troublesome and need to be avoided. Feather reed grass (Calamagrostis × acutiflora and cvs., Zones 5–9) is a natural hybrid of C. arundinacea and C. epigejos, which are both nonnatives and prolific self-sowers, but the hybrid rarely sets fertile seed—a major plus for an exotic grass, right? So why are other reed grasses—‘Karl Foerster’ aside—so underused? To answer that question is to understand the phenomenon of ‘Karl Foerster’ feather reed grass (C. × acutiflora ‘Karl Foerster’).

Non-alcoholic beer, wine, and liquor have been staples for years for those who are sober, sober-curious, pregnant, or even just want a night off from drinking. But for those who still love to indulge in a buzzy beverage now and again, the latest and greatest alcohol trend has emerged: low-proof alcohols and low-proof cocktails. Why is this new option catching the eye of so many, and how can you make a low-proof cocktail at home? Here’s everything you need to know.

Girl dinner is the latest dining trend to take over social media. Many of us already knew it existed (we were eating it, after all), but it didn't have a name until a few weeks ago. At its most basic, it's a pantry clear-out, cheese-and-charcuterie, snacking kind of meal. You can eat it with your fingers and graze on it while watching TV, reading a good book, and just doing a little self-care.

Skylights are seemingly everywhere these days. From small and charming to large and elegant, these architectural features have enjoyed a huge comeback over the past few years, popping up in homes and new developments across the country. So what’s behind the sudden revival of this 1970s and 1980s era feature? According to experts, here’s what you need to know about the rise in popularity of skylights, along with everything you should know before installing one in your home.

A. gigas is a star of high-to-late summer, with 6-to-8-inch domed flowerheads of the darkest wine color in much of August or longer. But for me the show begins them those insane-looking buds form, always prompting garden visitors to ask “What’s that?” Indeed.This most dramatic of angelicas wants moist soil, and is adaptable in my area to sun or shade, but seems happiest in bright shade (the old happy medium of gardening conditions).To have a successful colony, as with any biennial, you need to be vigilant and not accidentally weed out your self-sown babies each spring. You also will need varying generations of plants: some at blooming age (one year old) and some babies (to bloom next year). So I suggest to get started you buy yourself some p

ONE OF THE FIRST FRUITS that Josh Kilmer-Purcell and Brent Ridge planted when they took ownership of historic Beekman 1802 farm in Sharon Springs, New York: gooseberries.  Now the city-turned-country pair are having a bumper gooseberry year—and Josh joined me on the radio to talk about that and other aspects of “The Heirloom Life,” the subject of the duo’s breakfast slide lecture in my town August 17 to help celebrate my next garden Open Day. I’ve pre-ordered a couple of copies of the “Beekman 1802 Heirloom Dessert Cookbook” (due out in September) to share with some lucky winners, so read on for a chance to win–and some gooseberry lore, recipes and more.

IN OUR CHAT on my public-radio program, I learned why not to till when prepping a planting; how to help a desired species outpace an unwanted one by learning to manage and influence natural processes; and what the word “naturalistic” means today.what’s ‘naturalistic,’ anyway?Q. How did the native and natural become your specialty, Larry—did the education in landscape design come first, or the nature and science?A. My first experience in the landscape world was working in traditional horticulture—first a job, and then going to school for it. However my interest in it always came from the naturalistic end.As a kid, I grew up in the urban Philadelphia and I don’t think I even knew there was such as thing as a garden designer, until I got a job with a landscape firm, in the summer between high school and college.But the thing that always interested me was na

What it is, in the photo above? It is Angelica gigas, blooming in August for weeks. To succeed with Angelica gigas, you need to get it started in a spot that’s at least part shade, and where the soil isn’t too dry. And you need something more: You need t

Like all the seed farmers I’ve interviewed in this series (past links at bottom of page if you missed any), the Uprising Seeds team speaks of the mission, and meaning, behind what they do. It’s long, hard work—you have to believe to take it on.“Closest to our heart, and the main reason we do this work, is our celebration of the idea that access to open-pollinated seeds and the freedom to grow, reproduce, and share them is a basic human right that empowers community, tradition, and diversity,” says Uprising co-founder Crystine Goldberg (with Brian and their son in the photo up top). “And that the opportunity to select for those traits that are unique to individual climate and growing condition

Research from the nearby Cary Institute of Ecosystem Studies in Millbrook, New York, reveals how acorns initiate a complex series of ecological chain reactions. And not just the obvious ways, like feeding turkeys or chipmunks or deer, but in influencing Gypsy moth outbreaks and tick-borne disease risk, and even the reproductive success of ground-nesting songbirds.Dr. Rick Ostfeld, a disease ecologist from Cary Institute, helped me understand what–both seen and unseen–is going on with those tiny acorns and their mighty, wide-ranging influences. Read along as you listen to the Oct. 19, 2015 edition of my public-radio show and podcast using the player below. You can subscribe to all future editions on iTunes or Stitcher (and browse my archive of podcasts here).my q&a on acorns’

I SAY THANK YOU to the University of Chicago Press for investing in “Weeds of North America” (above) by Richard Dickinson and France Royer. The Canadian authors have created a massive work (800 pages paperbound) covering 500 of the continent’s pest plants, including aquatics. Key ID tips include not just flower and foliage photos, but also images of seeds and seedlings.This serious reference volume illuminates other reasons to consider the plants as pests, beyond the space they steal from natives. Such traits include toxicity to livestock (like milk thistle) or transmitting a disease to a valuable crop (like barberry does w