At this time of year, most blooming plants have finished their show and are just enduring the heat until the rains come. Buddleia, phygelius, fuchsia, echinacea, and cistus still offer a few blooms, thank goodness, but late summer / early fall is not when they shine. Here are 7 of my favorite plants that bloom in late August or early September in my garden.
Albizia julibrissin, or Silk Tree (above photo), is an elegant, feathery tree that has a broad canopy and delicate, divided leaves. In August, fan-like, wispy flowers of white and pink cover the surface of the foliage, providing a stunning, tropical look. I love how the flowers sit atop the leaves instead of hang beneath. There’s a purple leaved cultivar named ‘Summer Chocolate.’ Though it likes to bake in the sun, it does have a few drawbacks: the branches can break during strong winds, leaving wounds in the main trunk, and it’s susceptible to verticillium wilt. It also leafs out much later than other trees. But given it’s own sunny space, the tree is a graceful, eye-catching specimen.
Caryopteris x clandonensis, or Bluebeard, is a tough shrub, hardy down to Zone 6. It matches well with our Mediterranean-like summers in the Northwest. It’s drought-tolerant but doesn’t mind our winter rain, needs little to no pruning, and in August blooms with pretty blue flowers. Sometimes branches can be brittle and twiggy but cleaning them out is easy enough. Caryopteris ‘Sunshine Blue’ is a yellow-leaved cultivar that literally does glow like a sun. It will pop with color from far away. It has lighter blue flowers but the foliage really makes this plant worth growing.
I have Clerodendrum trichotomum, or Harlequin Glorybower, planted not far from my patio so I can smell it when it blooms. The fragrance is strong and spicy! It’s known for spadal leaves that smell like burnt peanut butter when rubbed, but that smell is nothing compared to the white starry flowers in bloom. After the flowers fade, shiny, blue berries take their place for a beautiful pattern of pink and indigo. Drawbacks to this small tree include its running habit, where small stalks emerge near the mother tree and its weak, crunchy, breakable stems. Still, the scent of this tree in the heat of August can not be beat! Just don’t prune it, otherwise it will grow into an ugly mess.
Lagerstroemia indica x fauriei ‘Zuni,’ or Zuni Crape Myrtle, is one of my favorite trees for a Seattle yard. You can spot it from a mile away. Stunning magenta flowers, pretty mottled bark, and tight glossy foliage. It’s a smaller, multi-stemmed tree that fits nicely in the corner of a city yard. It needs little care save for a hot sunny location and good drainage.
Rudbeckia hirta, Black-eyed Susans, are an oldie but a goodie perennial. I love the bright, cheery daisy-shaped flowers and sunny color. When happy, Black-eyed Susans, spread voraciously so watch out. But it’s easy enough to put a spade in the ground, cut some out, and pass them onto neighbors. My only complaint generally with Black-eyed Susans is in winter they leave stringy threads about. There’s a cool cultivar called ‘Cherry Brandy’ that has cherry-colored petals with a blackish center. This is more of a bushier, self-contained perennial, rather than thin-stemmed and spreading. It has bold color. If you’re a newbie gardener and want to grow something low-maintenance, any Rudbeckia is a great choice.
Sedum spectabile ‘Brilliant’ is a succulent perennial that grows in poor soil with little water. It starts out with cute rosettes in early spring that then elongate into rubbery stalks whose flat flowers turn from bright pink, to red, to maroon, and finally brown. Even though the stalks dry during autumn, they hold their shape, offering nice structure for winter. And birds feed off the seedheads. Sedum ‘Brilliant’ is an easy care perennial that I do little to except for cutting away dried stalks in early spring. If you plant Sedum ‘Brilliant’ or ‘Autumn Joy’ and the stalks flop over, it probably means your soil is too rich. Think desert conditions with these plants. Sun, well-draining soil, rocks, etc.
Vitex agnus-castus, or Chaste Tree, sends out spikes of a long, blue inflorescences during the hottest part of the season. This tree likes to bake in the sun, and though I call it a “tree,” it’s really more of a tall shrub, forming a rounded habit that will bounce back surprisingly even after the toughest winters. It also loves dry conditions. Good for a parking strip.
For more information on these plants, check out the Oregon State University landscape database. Happy gardening!
For today’s green scene of the day, I’ve chosen an image from my garden. My Crispa spiraea (Spiraea x bumalda ‘Crispa’) is an unusual spiraea because it grows these crinkly, toothy leaves, which is very unlike a spiraea. But what it shares with other spiraeas are those gorgeous summer blooms. Butterflies love their flat umbels. I also find this shrub sooo alluring.
Plants Popping Through Each Other
The spiraea all by itself is pretty darn cool but my peach Peruvian lilies (Alstroemeria) are pretty heavenly too. They often poke through the spiraea as they reach for sunshine (and because I often forget to stake them, haha). Isn’t that peach and yellow pattern with the tiny stripes so neat? This variety, whose specific name I don’t know, is absolutely my favorite alstroemeria. I bought it eons ago when I lived at a different house. But I brought a couple clumps of tubers to the house I live in now and they’ve flourished.
A Color Combo to Please the Eyes
So I thought it would be a nice bit of relaxation for you to have access to this image. I love how the deep pink puffs of the spiraea play off the smooth coral color of the alstroemeria. If you’re on a lunch break sometime, you might take three minutes out just to sit quietly and enjoy them both. Take a few deep breaths and allow your eyes to roam through this lovely little moment of nature. Hopefully, you’ll feel a bit more relaxed afterward. Cheers.
Seattle author and gardener Debra Prinzing knows flowers. In addition to writing books on gardening, Prinzing started the “slow flowers” movement. It encourages people to buy locally grown flowers rather than imported ones from faraway countries. Foreign growers often spray dangerous chemicals on their crops and employ low-wage workers in not-great conditions. Plus, the environmental cost of shipping flowers in chilled containers and planes across thousands of miles is massive.
But saying “I love you” is important, especially with a lovely bouquet that relaxes the soul. And Prinzing has found a more environmentally sustainable way to do that. So check out our chat below. We talked about the “slow flowers” movement and why a locally grown bouquet is a wonderful gift this Mother’s Day season.
Why should people buy Slow Flowers instead of supermarket flowers?
It’s simple. To me, sourcing local flowers is part of my moral compass. Our planet is at risk and yet the floral marketplace is based on an unsustainable model. We buy a perishable product (some would argue a “luxury” product) from one or more continents away that’s shipped on jets. Slow Flowers believes the production and consumption of a long-distance, perishable product is unsustainable and devours many valuable resources (jet fuel, packaging, water, etc.). Slow Flowers supports the alternative, locally and domestically grown flowers.
As an avid gardener, I know the flowers I love thrive in my own backyard. That’s another argument for not importing flowers. We can grow them ourselves with a much smaller footprint. And we support local farmers when we keep our dollars in our own community.
How did this movement begin?
The seeds of the Slow Flowers Society began after I wrote two books, The 50 Mile Bouquet and Slow Flowers. As I spoke to audiences and media around the country, people often asked, how do I find flower farmers and florists who supply local flowers? For months, I thought, “someone should start a directory.” Then, by the end of 2013, I dove into planning slowflowers.com. It’s a free national directory of florists, shops, studios, and farms that supply American-grown flowers.
The directory was intended to serve consumers but it also created great connections between growers and florists. Before creating it, I launched the Slow Flowers Podcast in July, 2013. I featured conversations with people in the directory. Those two channels brought people together. And in ensuing years, we created a vibrant, diverse community of creatives, farmers, makers, and floral artists who gather under this inclusive idea.
Even though verification programs for organically grown flowers exist, here and abroad, growing and certifying organically grown flowers can be tricky. How important is it for someone to buy an organically grown flower?
The USDA’s Organic Certification was originally created for food agriculture. Flower farmers who use organic growing methods often produce more than 100 distinct floral varieties in a given season. So their diversity actually makes the USDA application cumbersome. Most small-scale farmers are committed to sustainable, aka organic, methods such as no-till agriculture practices, planting cover crops, attracting beneficial insects (good bugs), no use of pesticides, fungicides or herbicides, and more. For these reasons, I feel very comfortable buying local flowers from a boutique grower.
In some regions, like here in the PNW, there are unique, third-party certifications. All of the flower farmers who are part of the Seattle Wholesale Growers Market are “Salmon Safe Certified.” That means their farming practices have been evaluated to make sure there are no fertilizers or other amendments harming our salmon habitat.
Another national organization, based on a peer-to-peer verification, is Certified Naturally Grown. Many flower farmers pursue that type of outside verification as an alternative to USDA Organic Certification.
My advice? Get to know your local flower farmer. If it’s possible to visit the farm on an open day, do so! Ask them about their methods and you’ll learn how passionate they are about enhancing their land with earth-safe practices.
What are some of the more commonly available “slow flowers?” Does it vary by region and what’s most native to an area?
OMG, the list is endless! Each region certainly has its unique growing conditions. For example, the humidity in the south is hard on crops like dahlias. The lack of sustained hot weather in the PNW means some summer annuals don’t hit their stride until September.
Here are some of the popular seasonal “stars” in the Slow Flowers Movement:
Early-to-Late Spring: flowering bulbs (tulips, narcissus, anemones, ranunculus); flowering branches (forsythia, quince, cherry, plum, etc.)
Late Spring to Summer: perennials including peonies, columbine, lady’s mantle, foxglove, poppies, hellebores; ornamental shrubs like viburnum and lilac
Summer: garden roses, lavender, all the annual crops (sweet peas, sunflower, zinnia, celosia, snapdragon, stock, marigolds, rudbeckia, strawflower)
Late Summer: Dahlias, dahlias, dahlias, more annuals, like amaranth; flowering shrubs like hydrangeas; ornamentals shrubs for foliage like cotinus and physocarpus (ninebark).
Fall: heirloom mums
Oftentimes large commercial growers dunk roses in fungicide to preserve their appearance. How can people find roses that are grown with fewer fungicides and pesticides for this Mother’s Day?
It’s nearly impossible to find “safe” roses for Mother’s Day unless you plan ahead and order in advance. The California rose growers who are shipping for Mother’s Day probably already have a cut-off date of 5/4.
Here are two members shipping roses at this time:
Other advice? I recommend giving your Mom a rose plant, plus a copy of our wonderful new BLOOM Imprint book about garden rose growing called Growing Wonder.
Who is Slow Flowers Society for?
The Slow Flowers Society is for flower lovers, both enthusiasts and professionals. It’s for anyone who cares about supporting domestic floral agriculture and sustainable design practices in the floral marketplace. Learn more at slowflowerssociety.com.
The Slow Flowers Society challenges assumptions about who can be a farmer. Also, we see flower growing as a legitimate form of agriculture. Flowers can be an economic engine for positive, sustainable change. The Slow Flowers Society is redefining what is beautiful in floristry. We embrace seasonality and show respect for the environment. Our progressive society wants to radically prioritize inclusivity, equity and representation in flower farming and floral design.
Who is Debra Prinzing?
Debra Prinzing is a Seattle-based writer, speaker and leading advocate for domestic, local and seasonal flowers. She produces SlowFlowers.com, the online directory to American grown farms, florists, shops, and studios who supply domestic and local flowers. Download her “Slow Flowers Podcast” for free at debraprinzing.com, or on iTunes.
In 2016, the Seattle Wholesale Growers Market honored her with the Growers Choice Award for her “outstanding contributions to revitalizing the local floral community.” She is a 2016 inductee to the Garden Writers Association Hall of Fame and Professional Floral Communicators International. Debra has authored 12 books, including Slow Flowers, The 50 Mile Bouquet and Where we Bloom.
Photo by (c) Missy Palacol photography
In my last post, I talked about the amazing effects of forest bathing. Today, I want to talk about another study that Japanese researcher Yoshifumi Miyazaki conducted. It shows some interesting results on whether flowers make people relax.
A Small but Key Study
Miyazaki’s team wanted to see if there were any changes in the body when subjects looked at flowers. So he had 127 people gaze at pink roses while the team measured their sympathetic and parasympathetic nervous activity. These two states happen when you’re stressed or relaxed. From the baseline, they found that subjects who looked at pink roses had lower sympathetic nervous activity (stress) by 25 percent. They also found those subjects’ parasympathetic nervous activity (relaxation) rose by 29 percent. So bottom line? Yes, seeing flowers makes the human body relax.
A Small Flower Has Big Worth
Though this study doesn’t get into why flowers relax people, we can guess it has to do with how we’re biologically wired. A few weeks ago, I wrote about how our eyes align with fractal patterns in nature and I suspect that relationship has something to do with it too. Regardless, if you’re feeling stressed, you might lift your mood by buying a bouquet from the supermarket. Maybe by looking at a lovely photo on the web. Maybe by growing perennials in your backyard. Whatever the method, getting flowers into your life will be worth the cost and trouble. And the best part for gardening nuts like me? We can now justify all those impulse buys from the nursery. Science shows we need them for our mental health!
Yesterday for Daily Stress ReLeaf, I talked about a book that teaches readers how to create a sacred garden space. Jessi Bloom’s Creating Sanctuary talks about honoring yourself and how your garden can be a reflection of that. But what if you don’t have a garden or any outdoor space? Well, one way I honor myself is to display cut flowers in the house. For me, cut flowers equals a better mood. And not only does it boost my mood but it also brightens my family’s mood, if only momentarily.
A Sweet But Destructive Cat
In the past, I was unable to display cut flowers because of our cat. I loved our blue Russian mix Aleksy but he was an enemy of any cut flowers my husband bought me or I brought in from the garden. He loved to chew on the stems. Nothing made him happier than decapitating tulips in particular. It was a sad sight to wake up and see fresh flower heads laying chopped and abandoned on the dining table. So for years, I didn’t keep cut flowers around. If my husband gave me a bouquet for a special day, I locked them in my office or up high on a shelf where I rarely looked at them.
Does Science Say Cut Flowers, Better Mood?
My dear sweet cat passed away last year. Though I still miss his spirited ways, I now take advantage of my quiet still counters and table tops. When I receive roses, I proudly display them in a prominent place in the kitchen and take a moment to breathe in their scent every day. I feel grateful, especially on rainy days in winter. Apparently, a lot of other folks feel similarly. A Rutgers study found that both men and women’s moods are bettered by flowers. We’ve evolved to react positively to them.
To say I react positively puts it lightly. Cut flowers are like a blast of sunshine for me, reminding me that nature is simple and beautiful. Flowers know nothing of life’s complexities or disappointments. They just do what they do best: grow and offer their gifts. Excellent stress relief.
A Question For You
So my question to you is do cut flowers put you in a better mood? Are they an expensive indulgence for you or a must? Do you also have cats that like to chomp on them? Tell me in the comments below or on Twitter.