They are ubiquitous during the holiday season—and for good reason. Poinsettias (Euphorbia pulcherrima) are affordable, colorful plants with an enormous amount of festive appeal. But, contrary to popular opinion, the flowers are actually minuscule. The beauty of the poinsettia comes from its large, colorful red bracts.
Poinsettias come not only in the traditional yuletide red, but in a selection of cream-colored and rosy pink varieties as well. Whatever your tastes, they adorn many public spaces and homes during the holiday season.
I wince when I see people walking down the street with an open poinsettia in hand, fully exposed to the elements. Do your part to be an informed shopper and insist that the florist or retail store you purchase your poinsettia from wraps the plant before you leave with it. It doesn’t have to be an elaborate affair—it can be as little as temporarily covering the plant with a shopping bag. You must remember that you’re dealing with a tropical plant, and it can’t handle our area’s cool temperatures.
I was watering containers around the Café one weekend in September when a woman stopped me to ask some questions about herbs. She had seen the large containers of parsley on display and was wondering what we did to keep the plant so healthy.
She explained that she had purchased parsley this summer and had placed it on her windowsill in her kitchen. It was not as verdant and vibrant as ours, and she was wondering what she had done wrong. I explained that our container displays comprised several plants to create a lavish appearance, but it was not simply quantity but also the size of the container that produced the bountiful display.
For your herbs to thrive, they need ample space to grow. Herbs are generally sold in spring in small, three- to four-inch pots. The small sizes of the pots are convenient for growers and it keeps the price down. Once you bring it home, the herb will need a bigger home so the root system can expand to support the plant.
If the herb is to be placed on your windowsill within arm’s reach of your cutting board, you probably won’t be able to repot it in a larger container, but even bumping it up to a six-inch pot will make a world of difference.
Todd Forrest is the NYBG’s Arthur Ross Vice President for Horticulture and Living Collections. He leads all horticulture programs and activities across the Garden’s 250-acre National Historic Landmark landscape, including 50 gardens and plant collections outside and under glass, the old-growth Thain Family Forest, and living exhibitions in the Enid A. Haupt Conservatory.
Approximately thirty thousand trees add shade and scale to the Garden, including thousands of mature oaks, maples, sweet-gums, beeches, birches, tulip-trees, black-gums, and other deciduous beauties in the Native Plant Garden, Azalea Garden, and dotted across the hills and dales of our historic landscape. All of these wonderful shade trees make fall at the Garden a heart-breakingly beautiful mosaic of yellow, orange, burgundy, scarlet, and brown, particularly when late October and early November days are bright and nights are crisp but not freezing.
All of these wonderful shade trees also make the annual ritual of fall leaf pick-up a Herculean task for Garden horticulturists, who take up rakes, blowers, mowers, vacuums, and any other tool they can think of and spend the better part of three months each year in an elaborately choreographed leaf gathering and transporting dance across the Garden’s 250 acres. If all goes as planned, leaf pick-up begins in early October and is mostly finished before winter’s first substantial snowfall.
As a biennial, parsley comes up in its first year with foliage in full splendor, then it quietly overwinters and flowers the following season. A member of the Apiaceae family alongside dill, fennel, and lovage, parsley’s flowers are beautiful yellow umbels. The foliage in the first year forms a lush rosette which is often what you’ll find in the grocery store. In the second year, when it flowers, the foliage is sparse and elongated.
But despite its versatility and hardiness, parsley is notoriously difficult to grow from seed. I generally recommend that people soak their seeds overnight in lukewarm water to aid in germination. While parsley can sometimes take anywhere from one to six weeks to germinate, the soaking still helps speed up the process.
Fall is a good time to identify many of the common invasive plants and wildlife that may be threatening your garden. While you’re cleaning up your leaves and garden beds, you can spot the invaders including mile-a-minute vine, multiflora rose, Norway maple, oriental bittersweet, phragmites, porcelain berry, Tree of Heaven, winged euonymus, and more.
Many of these exotic species were intentionally introduced from other countries more than a century ago. Some were used as packing material, while others just took a ride on ships from Asia and Europe. Some plants were cultivated for their ornamental value without regard for the fact that they could out-compete important native species. A detailed list of prohibited and regulated invasive plants in New York State with pictures is provided here.
You can learn to identify some of these invasive plants right in your own backyard and then report your findings by signing up on a new smartphone app, online database, and website called iMapInvasives.
We are heading into the final weekend of Kiku: The Art of the Japanese Garden. The show is awash with vivid autumnal color and exotic chrysanthemum blooms in every shape and size imaginable.
For those curious, there are 13 different classes of chrysanthemums. Some of my favorites are the Edo varieties which fall into the last class of mums—Class 13: Unclassified or Exotic. These are the chrysanthemum flower shapes that do not fit into any established category. They often have twisted, bi-color florets that change their shape as they open.
Beyond these, there are many fun and fanciful chrysanthemum flower forms to cover. Chrysanthemums from the Brush and Thistle class look like an artist’s paint brush. Spider mums look like fireworks exploding in the sky. They have long, tubular ray florets that hook or coil at the end. Anemone-type mums have centers that are raised up like a pincushion, and chrysanthemums from the Spoon class have long ray florets with tips that are shaped as their name suggests.
Who doesn’t love a sharer? Not an over-sharer, like Harold in Accounting, whose detailed inquest into his latest digestive afflictions has positively ruined my lunch hour three days running (I’m a horticulturist, not a doctor, Harold…we’ve been over this). No, I’m referring to the sweet woman who makes popcorn and secretly gifts you a handful, or the savior who brings coffee for everyone on Monday morning. And while you won’t even get within visual range of any popcorn or coffee in my possession, I am a prolific sharer of plants, so I do have a few friends left about the office.
Propagating plants can be as painless and satisfying as popping corn, pressing “brew” on the coffee machine, or simply eating lunch outside under a shady tree to avoid Harold. This is especially true of rosette succulents like Echeveria. Often referred to as Mexican Hens and Chicks, these Central and South American species adore sun, tolerate neglect, and exhibit a vast array of captivating leaf forms as well as flower and foliage colors. Truth be told, it’s a painfully easy group of plants to become enamored with and collect. The good news is that propagating and sharing your echeverias is a great way to make someone’s day and assuage the guilt of having spent far too much money on internet plant auctions. Be sure to remind your very patient and understanding spouse that smiles are priceless. PRICELESS.
‘Redina’ red leaf lettuce bolts in the heat of summer, setting flowers and then seed to save.
Along with juicy-ugly tomatoes, fresh herbs, and those peppers that made the best hot sauce, gardeners should harvest the seeds from their most prized plants of the growing season. In my Bronx community garden plot, one basil plant is reserved for setting seed, while the others are for eating with Arthur Avenue smoked mozzarella and in-season heirloom tomatoes.
Saving seeds carries on the work of our ancestors, who selected plant varieties using excellent foresight—and their taste buds. An ancient practice dating back to the Stone Age, the first saved seeds were part and parcel in man’s transition from hunter-gatherer to farmer. As plants began to be domesticated, varieties were selected for their flavor, beauty, resilience, and abundance.
This year we have planted a number of varieties of elephant’s ear or taro (Colocasia esculenta) in the Home Gardening Center. Colocasia is sometimes confused with Alocasia macrorrhiza, which is also known as elephant’s ear or giant taro, but the two are quite easy to distinguish.
They both have massive foliage that looks—as the name suggests—like an elephant’s ear. The most identifiable difference between the two genera is that the foliage on Alocasia points upwards like an arrowhead, while the foliage on Colocasia points downwards to form the shape of a heart.
Earlier this year, I wrote about one of the Colocasia in the Trial Beds in the Home Gardening Center—C. ‘Electric Blue Gekko’. Now that the season has progressed, it is easier to make an assessment of the different varieties grown and to pick out favorites.
In September, our roses always look resplendent. We have a special fundraising party that takes place in the Peggy Rockefeller Rose Garden so it looks colorful and immaculate during a time when many other areas in the garden are winding down for the season.
I often have people stop and talk to me about roses when I am down working in the garden on the weekends. Black spot and Japanese beetles are always topics of conversation. Sometimes a visitor is searching for a specific rose—one from childhood or something they have heard about in a story. More often than not, people are interested in good recommendations. With over 600 different varieties of roses, the Peggy Rockefeller Rose Garden is an ideal place for the gardener to go window shopping.
