The History of Winterbloom, 40 Years of Great Landscapes and Wonderful Connections!

Phil Thornburg • November 15, 2023
Brick patio with raised stone planters filled with colorful flowers and greenery; a house is in the background.

From the fall of 1979 to the fall of 1982, I worked as the field and laboratory testing manager for a geotechnical company called L. R. Squier Associates. A recession happened during the early 80s, interest rates for mortgages on homes ranged from 11% to 17%, and employment was hard to come by. I was laid off from L.R. Squier in October of 1982 and began looking for work, taking a class on vocations and employment preparation. I was assessed and told that I had artistic talents, the learned skills to manage a geotechnical laboratory as well as its field assignments, and many skills in the field of horticulture but that I should work for someone else and not seek to own or start a company because they determined that I had no business understanding as well as being low in math skills and accounting.   


I found a job working part-time at minimum wage for Gerber Gardens in Lake Oswego. I enjoyed working with their employees, selling to clients, and learning about their various plants. I did not earn enough to support our family, so Barb began cleaning the homes of our Tigard Community Friends congregation members.

While working there, I was often asked to work on the Gerber Gardens landscape installation crew, and I liked it very much. I discovered that many nursery clients who came to purchase plants needed maintenance of their yards or help to plant the plants they had purchased. At that same time, our pastor, Roy Skeeter, and a close friend, Adele Beck, who owned an Interior Design business in Portland, recommended that we start a landscape company. They suggested we begin the business while I worked part-time at Gerber Gardens. After much prayer and consideration, we decided to start this risky adventure.   


I asked Bill and Beth Gerber if I could moonlight with their nursery clients on the side. They said yes; however, I could not perform any installation work for their nursery clients, only gardening and simple planting help, specifically with the plants they had purchased. I began offering my service to them on these tasks. I planned to use our car when Barb did not need it. When not working, I would take Serenity, who was about 5, to help me collect bottles worth a nickel apiece. 

This small amount of money was beneficial for cash purchases of milk; for instance, we used it on cereal and to make macaroni and cheese, both favorites of the girls at that time. While looking for these bottles on a dark, rainy day in January of 1983, we found some low-growing, bright pink, winter-blooming plants in a neighbor’s yard. Upon inquiry, the elderly homeowner told us that they were Cyclamen coum. We were permitted to dig up one small clump to take home to grow and propagate. 

Pink cyclamen flowers blooming amongst heart-shaped leaves. Mossy rocks in the foreground.

I was fascinated that such a small plant could bring so much cheer to my heart at that dismal time of the year. 

By the fall of 1983, I had built up enough clientele from Gerber Gardens work and their referrals that I could apply for and was approved for a business license with the state of Oregon. 


I chose to call the new company Winterbloom, using the Cyclamen coum as the logo. I decided on a motto, “Creating Private Edens One Home at a Time,” a little later, hoping to make this rather high-sounding title a reality with our clients. Winterbloom was housed and administered from our tiny home in the Lake Grove portion of Lake Oswego. My parents, Paul and Leona Thornburg, lent us $2,000 to purchase a used Toyota pickup truck to haul soil, rocks, and plants for potential clients and the wheelbarrow and hand tools I might need.

In 1984-86, Winterbloom took on the redesign and landscape remodel of one of Adele Beck’s interior design client’s homes near Taylors Ferry Road in Portland (see pictures below). That work allowed Winterbloom to grow. I found that I needed part-time help. 

I hired my first employee, Roger Morse. During the next few summers after Roger moved away, I hired a high schooler, Craig Haisch, who eventually also went away to college but continued to help me in the summer months.

In 1986-1990, Winterbloom began the design and followed up with the installation of a new landscape for another client of Adele Beck’s, who was building a new home on the hillside above St. Vincent Hospital. This job was challenging, eventually including two water features, several paths, beds, and steps on the steep hillside. 

In 1991, we moved from Lake Grove area of Lake Oswego to Sattler Street in Tigard, using the home’s larger garage and side yard for the business tools and shop. In 1991, we hired my sister Miriam Bock, who came on board taking classes in design, art, and color at the same time while I taught her about plants and landscape design. Her first job was to help Phil on a large project in Newberg. 

Three people with shovels pose in a garden.

In 1992, Alan Peterson was interviewed, but I did not believe that he could handle hard work as he was a disgruntled lawyer. However, at Alan’s insistence that he could do the work, Miriam and I gave him the hard job of pushing wheelbarrows of gravel up a plywood ramp to a back yard during a storm with a rainy east wind in the Rocky Butte area. Alan succeeded, made it through the day and he was hired. 

In 1989-1992, we accomplished the design and installation of our most extensive redesign-remodeling landscape installation to date in Newberg, another client of Adele Beck. It included a swimming pool, hot tub, patio, sports court, a large arbor, and big perennial beds. We used several contractors, and I oversaw all the installation, including irrigation, concrete, and excavation. 

We hired Jae Munson and Brent Kimberly in the summer of 93. Brent left to pursue becoming a physician that fall. Jae stayed to learn landscape installation and worked off and on, eventually becoming our first installation manager in 95-96. Matt Schwab, a friend of  Jae Munson, joined Winterbloom in '96 but left the following year, only to return full-time in 1998, eventually becoming our Installation manager. Jae Munson returned to Winterbloom full-time after graduating from U of O in Eugene in 1999.

Family group posing outdoors under a wooden pergola, including older couple seated in front and others standing; sunny day.

Andy Coulombe came to work in 1998, working on the installation team with Matt and Jae. Mike Baker was hired in 2000 to help with installations. In 1998-1999, we installed a significant columnar basalt water feature for a client in Milwaukie. 

Joel Bock joined the team for a short time in 2001. Winterbloom had grown too large for all the equipment to be stored at our Tigard Sattler Street home garage and side yard. So, Barb and I took the big step of moving everything to the Burnham Road business park near downtown Tigard but kept our office in our home. This move allowed for increased capacity and the ultimate expansion of the business.

Four men smile while seated at a round table in a Chinese restaurant.

Then, in 2002, we moved as a family from Sattler Street to 98th Ave in Tigard, creating more office space in the daylight basement for myself, drafting tables for landscape designers, and a location for a part-time bookkeeper and office worker.

Slowly, I learned and developed systems with the help of business coaches to create a functioning design department, a gardening/maintenance department, and an installation department, each intended to augment and help the other departments. Most employees were at first expected to perform maintenance on maintenance days and installations on installation days. Miriam and I took care of the landscape designs, and I ran sales, oversaw the installation and gardening departments, and performed the bookkeeping until 1991 when we hired a part-time bookkeeper. As time passed, Miriam became the design manager, Ann Taylor became the gardening manager, and Matt Schwab became the installation manager.

Woman and man smiling at a table. The woman wears a colorful patterned blouse.

In 2003 -2004, Winterbloom redesigned and remodeled a landscape around a large existing home being remodeled for clients who lived in Warren, Oregon, between Scappoose and St. Helens. In 2004, I was invited to a home in the Stafford area to redesign their home landscape. As we talked, she noticed that our Winterbloom brochure featured the Warren client’s extensive remodel, which was her friend’s house! 


She was sold on our becoming their designer, too! Their design-installation was completed in 2005 and was far enough along to be entered into the 2015 ANLD landscape design tour. 

Man holding a magazine open to a page with a picture of a house and text.

In 2003, Mike Baker left to begin his own business, and we hired Eric Bock, my nephew, part-time to help with the crews. Serenity Coulombe, our eldest daughter, began helping part-time in the office. We later hired Vickie Davis, who stayed on for a good run as office manager. In 2004, Jae Munson left to become a firefighter! His long stint of working at Winterbloom was so appreciated.

A group of people seated at a picnic table outdoors.

Dale Hickey joined Winterbloom in 2007 and grew to take over Ann Taylor’s position as manager of our Landscape maintenance and gardening department. 

A man kneels beside a large, wet rock water fountain.

In 2006-2008, we designed and installed a new landscape for the same clients who had sold their home above St. Vincent Hospital, which we had landscaped previously! This new estate was located on Skyline Boulevard in Portland with a beautiful view north and east toward the Columbia River. We were given the latitude to install three water features, extensive beds, paths, and walls to make this home special. 

In 2010, The downturn in the economy caused by the housing and insurance scandals of 2008 caused a severe financial situation for us! We found that we needed to lay off several employees, including Miriam, which was a tough action. This left Matt, Aaron, Eric, Josh DeGraaf, and Dale to keep maintenance and installation running. Later that year, Matt left Winterbloom to begin Inspiration Plantation, and Eric Bock took over as Installation manager.

 Winterbloom recovered from this downturn and hired Diana Weston as our office manager and bookkeeper. She challenged me to delegate more work to our employees to perform and to focus more on what I could do that no one else could. This was an epiphany for me and gave me a goal to work toward.   


We hired John Gammons in 2011 to help with installation and gardening crews as needed; John came to us, adding enormously to our understanding of Botany and horticulture.


In 2015, we took the next step in growing the company. We created a sales position with a company vehicle to continue building Winterbloom. Eric Bock was promoted to manage our installation sales and our installation department.

Two smiling men pose together indoors; one older with blue shirt, one younger in a beanie and jacket, arms around each other.

Samara Hand, our youngest daughter, joined us as our bookkeeper in 2016 to help us upgrade our financials to a more professional level of accounting. Our daughter Serenity was rehired to begin training as a designer under Miriam Bock that same year.

Smiling couple posing close together indoors. The woman wears a red shirt and necklace. The man has a striped shirt.
Woman in yellow jacket and man in blue shirt talking.

Forrest Cammack was hired in 2017 to help with the installation crew. He spoke Spanish, which improved our communication with our competent and knowledgeable foreman, Gerardo, and Forrest learned landscape installation under Gerardo and Steve Hauser.

Rebekah Cammack was hired to work part-time in maintenance and in the office in 2018. In 2020, Austin Snodgrass was hired to help in both installation and maintenance crews as needed. Steph was hired as our office manager in 2020, replacing Rebekah, who had been promoted to managing and growing our landscape design department.

Winterbloom continued to build and grow, causing us to take the giant step in February of 2021 to move our office, sales, and design departments from our home on Sattler Street to Bonita Road in Tigard, where they were joined with the Maintenance/Gardening and Installation departments which also moved from the location on Burnham Street in downtown Tigard. This was a significant endeavor! Steph managed the office move-in, and Steve Hauser managed the shop move-in. This was part of our long-term plan to separate the business from our home, encouraging more independence of the company and allowing it to be purchased more efficiently by another entity. 

In July of 2022, Rebekah moved on from her position as Design Department Manager to obtain a degree in Landscape Architecture in Berkeley, California. Serenity was promoted to Design Department Manager, with Dale continuing to train in Computer-Aided Design (because all our designs had been hand drawn up to this point).

In 2022, a group of Winterbloom employees began discussing becoming a legal cooperative and purchasing Winterbloom from Phil and Barb Thornburg. In July 2023, Eric left after working with Winterbloom for 20 years! He has been missed! Mike Baker was rehired after 20 years to take over the Sales and Installation Manager position from Eric. In October of 2023, Winterbloom celebrated its 40th year as a company. 

September 3, 2025
We look forward to seeing and catching up with so many of you! This is a great time to add new plants to your garden for discount prices as low as $5.00! Bring your friends! Please RSVP for the event at the link below: https://www.winterbloominc.com/contact
By Dale Hickey September 3, 2025
Garden Tips and Tricks for September September and October are my favorite months of the year. The air cools, the light shifts, and the season takes on that autumn magic that always makes me think of Halloween. Summer is winding down, but the garden is still alive with tasks that prepare it for the darker months ahead. Unlike spring’s dramatic storms and sudden frosts, fall eases in gently, carrying us toward the rainy season by late October. September Gardening Tasks: Ease off watering – Let plants harden off for winter, but check the soil and water if it’s dry. Keep weeding – Persistence now makes for an easier spring. Renovate or seed lawns – September and October are prime months while the air is cool and the soil is workable. Beware of fallen leaves on newly seeded areas. Slug baiting – Use traps or the beer-in-a-jar trick to keep them in check. Monitor areas and determine your threshold for damage. Slugs are also part of our habitat gardens. Trim back perennials – Clear away browned foliage to tidy beds before winter, or for habitat and sustainable gardening, leave perennials for mulch/habitat and forage for birds and insects. Planting and transplanting – September through March is ideal, with November the peak month. If you haven’t yet, begin planning which hardy annuals to seed in late October-November. Harvest – Gather winter squash, tomatoes, and potatoes while they’re ready. Winter vegetables – Early September is the last chance west of the Cascades for kale, Brussels sprouts, turnips, cabbage, and other winter favorites. Lawn fertilizer – This is the last month for summer fertilizer; switch to a fall/winter mix in November. Rhododendron cuttings – This is a good time to start new plants if desired. Prep compost piles – Stock them with fall leaves and garden trimmings for rich soil next year.  Houseplants – Bring them indoors when nights turn too chilly.
A close-up of small white and yellow flowers with a bee pollinating one.
By Phil Thornburg and Dale Hickey May 6, 2025
May Tips for a Habitat-Friendly Garden Plant annuals (but wait on heat-lovers): May is a good time to plant annuals in containers and beds. Hold off on heat-loving crops like tomatoes and basil until nights are reliably warm and the soil has warmed—planting too early can stress or stunt them. Start mindful watering: If rainfall has been low, begin deep, infrequent watering (about once a week). This encourages strong root systems and conserves water. Avoid overhead watering in the evening to reduce fungal issues. Rethink the lawn: If you maintain a lawn, mow higher to reduce water needs and encourage deeper roots. Consider letting some areas go wild or replacing turf with native groundcovers to increase habitat value. Weed wisely: Focus on removing weeds that are going to seed first. Even five minutes of weeding helps! Leave less aggressive weeds in place if time is short—many provide cover or nectar for insects. Support natural pest control: Promote beneficial insects like ladybugs and lacewings by planting a variety of nectar-rich flowers. For aphids, try a spray of soapy water or simply hose them off. Avoid broad-spectrum pesticides, which harm pollinators and beneficial bugs. Slug and root weevil control: Use methods that target pests without harming other wildlife. Nematodes work well for root weevil larvae. For slugs, try beer traps, copper tape, or manual removal. Diatomaceous earth can be effective but may also harm beneficial insects—use sparingly. Leave the mulch: Let leaf litter and composted mulch remain under shrubs. It feeds the soil, retains moisture, and supports beneficial microbes. Fertilize only if plants show signs of stress, and choose fish emulsion or compost tea when needed. Plant for fall and for pollinators: Now’s a great time to plant perennials like chrysanthemums (for fall color) and native flowering plants that bloom through summer and into fall—providing nectar for pollinators and habitat for insects. Plan your veggie garden: By late May or early June, plant warm-season crops like tomatoes, peppers, cucumbers, squash, beans, pumpkins, and kale. Consider letting a few vegetables bolt (like dill and kale) to attract bees and butterflies. Watch for cabbage pests: Small holes in leaves may be flea beetles or cabbage worms. Use floating row covers, handpick pests, or apply BT sparingly. Companion planting with herbs like dill or nasturtiums can help deter pests naturally. Prune thoughtfully: After spring-blooming plants finish flowering, prune only if necessary. Leaving seed heads can provide food for birds and shelter for overwintering insects. Consider leaving trimmings in beds to decompose, except those trimmings of perennials with seed heads you don't want to spread. Avoid major trimming of trees, many birds are still nesting. Skip spraying trees unless necessary: If tent caterpillars are present and damaging fruit or shade trees, remove egg masses or nests manually. Spraying should be a last resort—consider how many caterpillars you can tolerate as part of a healthy ecosystem.
A group of people sit in a room with presents, talking.
By Dale Hickey December 18, 2024
A Heartfelt Thank You and Holiday Cheers from  Winterbloom Landscaping Cooperative  As the year winds down, we find ourselves reflecting on the incredible journey we’ve taken together over the past months. Transitioning to a cooperative has been a transformative experience, and it’s one we couldn’t have navigated without the trust and support of our amazing customers. You’ve been with us through the changes—whether you’ve been a client for years or just joined us this season, your belief in our vision has kept us going. Your loyalty has allowed us to reimagine how we work, creating not just beautiful landscapes but a thriving, sustainable community. Thank you for being part of this new chapter with us.  On December 7th , we celebrated all that we’ve accomplished together at our annual Winterbloom Holiday Party ! We gathered as a team to share laughs, stories, and some well-earned joy. Phil and Barb even joined us, making the celebration even more special! One of the most meaningful parts of this transition has been seeing the way our team has embraced this new model. Their hard work, creativity, and passion bring life to every project, and we’re so grateful to have such a dedicated and talented group of people by our side. This team isn’t just the heart of Winterbloom—they’re the reason we’ve been able to dream bigger and build something truly unique. Here are a few photos from the party:
Pale pink fuchsia flowers hanging over a garden path. The scene is blurred, with a wooden gate in the background.
By Phil Thornburg October 8, 2024
October is the transition month, weather-wise, in western Oregon. Autumn has arrived, and with it, all the things we love—cooler days, vibrant fall colors, and a fresh start for your garden. Often, we begin experiencing some serious rains about mid-month, and then by Halloween, the rainy season has begun! The last week of October (but sometimes the first week in November) is the last time that we mow lawns weekly. Watch your lawn so that you can decide the best time to stop the chore. October is the first month we have a higher probability of being able to transplant from moist, soft soil into a moist, soft, new hole. All plants, of course, prefer to be dormant (asleep) when being transplanted. So, the coolness of October and (hopefully) moist soil are perfect for the beginning of the transplanting and planting season. The best planting time usually extends through the rainy season until about the middle of March. From mid-October to mid-March is the best time to plant in western Oregon. If you want more bulbs in your garden to bloom in March, April, or May, visit your local nursery to purchase spring bulbs and plant them. October and November are the traditional months for planting spring bulbs. You can also plant fall bulbs, such as Saffron Crocus and Colchicums. However, do not expect much from them until next fall! The rains will bring out the dormant, sleepy slugs, so setting slug bait out in your beds now will thwart a winter and spring invasion of new baby slugs! The fall leaves will soon begin dropping all over your garden. Remember to keep them off the lawn/grass areas and instead rake or blow them into your beds. The wet leaves will cause damage if left on your lawn! (Sometimes, only one day can leave a scorch mark on your lawn.) However, these leaves can become great free compost/mulch for your planting beds. This month, mulch should be placed around potentially tender plants such as Cannas, Fuchsias, Dahlias, and Calla Lilies. This will insulate them from frosts or freezes this coming winter.  Get some bark mulch or chips and spread them two inches thick over any bare areas in your beds to prepare for the rainy season. This will prevent erosion and help to choke out sprouting weed seeds in spring. Late October is a great time to broadcast Native hardy annual seeds. If you can get them going now, most species will sail through the summer months with no water needs. Pro tips: Plant garlic bulbs now for harvesting next summer. Pick your green tomatoes and bring them into the garage to ripen. Harvest sunflower heads and bring them into the garage to dry. These are great birds to set out over the winter for birds or human snacking. Dig and store potatoes. Harvest apples, squash, and pumpkins, keeping them all in a dark, dry, cool place around 40-45 degrees. Harvest filberts and walnuts, placing them on mats where they can dry at about 60 degrees to get them ready for cracking and eating. Harvest the red Saffron pistils from your Saffron crocuses. It would help if you were quick to harvest each day because the rain and slugs will quickly spoil the beautiful red threads. Consider digging up and storing your Pelargoniums, hanging Fuchsias and Begonia bulbs in a cool, dry location in shredded newspapers or shavings for the winter, and watering them lightly once a month over the winter to keep them alive. Do not let them freeze! Consider propagating these plants from stem cuttings: Fuchsias, Chrysanthemums, and Pelargoniums. Put them in moist, sandy soil and cover them with a clear plastic bag–this keeps the moisture in. Also, keep them away from freezing temperatures. Give them some light from a window, and if they are at room temperature, they will root faster. Spray peach, cherry, and prune trees with a simple fruit tree and copper spray to prevent cankers and leaf curl diseases. Store any chemicals and fertilizers out of the moisture and away from children. Clean and prepare your greenhouse for winter storage. Consider manipulating light now to force your Christmas Cactus to bloom around the holidays. This is done indoors.
Pink begonia flowers with yellow centers hang from green stems and leaves.
By Phil Thornburg and Dale Hickey September 11, 2024
Garden Tips and Tricks for September 2024 September and October are my two favorite months of the year. The weather is beginning to cool down, but we still have some beautiful sunny days. Halloween is just around the corner and I have an abundance of bird activity in the garden still. Mornings are noticeably chilly, and it feels nice to add an extra layer to stay warm. The transition to Fall is my favorite! September Gardening Tasks: Slack off on watering in the beds, but water if your soil is dry. Less water now hardens plants off for winter. Weed. Yes, keep doing this! Never give up! September/October are the best months to plant new or to renovate old lawns, particularly as the air gets cooler and before it gets completely cloudy and cold. You may want a landscape company to perform this task for you. Bait for slugs. Remember the beer option, and if you do, make sure to bury something like a mason jar in the earth and fill it with beer to 1” below the lip, that way the slugs won’t be able to lean in and get a sip but will instead fall in. You can begin trimming off the tops of those perennials which have finished blooming and have turned brown, this will help to clear up the clutter before Winter arrives. September and on through March are the best months of the year to transplant or plant . The peak month for planting and transplanting is November. Pick and store winter squash when it is ready. This is usually late in September. Keep picking tomatoes and potatoes. Early September is the last month to plant your winter vegetable garden west of the Cascades. Examples are winter hardy kale, Brussels sprouts, different Italian greens, broccoli, raab, turnips, cabbage, kohlrabi and more. September is also the final month for regular summer lawn fertilizer application (use a special Fall/Winter mix for November). Now is a good time to take Rhododendron cuttings to start new ones if you are so inclined. Prepare your compost piles for recycling vegetation from your gardens and deciduous trees this fall. Use a copper spray for peach and cherry trees during dry periods. If you are prone to these diseases, spray for bacterial canker of blueberries, leaf cane spot and juniper twig blight (after pruning away dead and infected twigs) during dry periods. Bring houseplants indoors after cleaning and re-potting them, if nights get too cool. If possible, keep them out through October. Short Blog on How to Over Seed Your Lawn The best time for over seeding (filling in bare spots) or just grass seeding in general is September/October/November or March/April/ May. Scratch/rough up the bare areas in the lawn with a hard rake. Sprinkle some seed over these bare areas with just a little natural fertilizer and lime. Cover it to no more than ¼” deep with grass seed mulch. This looks like straw but does not have the weed seeds like straw bales have! Keep the area moist but NOT soaking wet. Lots of spritzes on hot days and just a few spritzes on cloudy days. Wait about two weeks to see what happens. If tiny green shoots, like green dog hair, begin appearing, you are doing well. If no green appears—or not enough to create happiness—repeat the performance every three weeks until you have grass. Keep the bag of grass seed in a cool place (like a garage) over the winter. In the summer put it in a refrigerator. (Watch out for rodents, they love the stuff!) Remember that overseeding a lawn regularly here and there in damaged areas is just a part of the life of owning a home which has a lawn.