Phil’s Garden Tips & Tricks for March 2020

Phil Thornburg • March 13, 2020
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March 19 Is the Date on Which Our Calendar Says Spring 2020! 

We have had heavy rains in January and early February, followed by sunshine for several days in late February, but only light frosts this winter! Who knows what March will continue to bring! Now is the time to determine if this September you need to purchase more bulbs, and, specifically WHERE you need to plant them so that Spring 2021 will be even more cheery! Make a note of it, now, somewhere that you will remember to purchase in September 2020! The robins have set up their territories and are now loudly proclaiming at dawn. Our Pacific chorus frogs are actively forming a symphony for our entire neighborhood. The bees have been seen out visiting our spring blooms. 

Here Are Some Tips and Tricks for March:

  • It is important right now—if you have not yet done it—to quickly prune off any of last year’s perennial ugly, brown foliage that you did not get to, before the new sprouts begin to come up and make you selectively prune the branches.
  • Continue weeding to prevent your weeds from going to seed! Seriously, if you weed now, summer weeding will be so much easier. And if you are going to use a pre-emergent weed control, now is a good time. Just please be careful when using this sort of thing!!
  • Continue baiting for slugs.
  • This is the last good month for transplanting. Try to do it soon before they sprout. If a plant is starting to sprout, it might be best to leave it alone and wait for next fall to move it. 
  • Prune your spring-flowering shrubs after the blossoms fade, and only if they really need it. 
  • Trim or shear winter-blooming heathers when the bloom period is finished (usually later in March). This keeps them nice, tight and full. 
  • Now is the time to cut off all your Western Sword Fern’s fronds to clean them up and get them ready to open all of their new fronds. This is mainly where you look at them from a path or a window. Obviously, if you own a woodsy section you will not want to trim all your ferns in the woods this way. No one does it out in the forest! 
  • Fertilize rhododendrons, camellias and azaleas with compost, or—only if necessary—use an acid-type fertilizer. An indicator this is needed is if the leaves are yellow.
  • Spread mulch over garden and landscape areas that didn’t get mulched last month. 
  • Lawn-mowing begins this month, so, set your blade at the lowest setting that you are comfortable with: ¾”-1” for bent grass lawns; set blade 1 1/2” to 2 ½” for fine fescue and ryegrasses. In other words, set it as low as you can without damaging the lawn. It will look really shorn after you do this, and it might take three tries to get it to the level that you want. The grass will be wet and green and you do not want to clog up or kill your lawn mower! Do not leave clipping clumps on the grass this month as they will create brown spots. Throw the clumps into the beds or the composter. 
  • This is the time for the first 2020 application of lawn fertilizer after the first mowing. Our preference is an organic fertilizer (non-petrochemical or a 16-5-5 fertilizer).
  • Fertilize cane berries with manure/compost (or a 10-10-10 fertilizer).
  • Prune out dead wood on raspberries, blueberries and gooseberries to keep them from getting too big, then spread wood shavings and, as needed, manure/compost.


On a side note, I apologize for the fact that these tips and tricks don't vary a lot from year to year. That is because the tips and tricks I share are the ones that have stood the test of the garden calendar of time. If you have new ones or want to polish up the ones that I have here, please let me know! Thank you.

By Dale Hickey October 6, 2025
On Saturday, September 27th, we held our fall plant sale at Thornhurst Garden—and what a day it was! The garden itself provided the perfect backdrop, with the changing leaves and late blooms showing off the season’s beauty. It was such a joy to see so many friendly faces—neighbors, friends, and new visitors alike—coming together to share their love of plants. Events like these remind us how much community is at the heart of gardening. The sale helped us find new homes for much of our overstock, and many folks walked away with treasures for their own gardens. Moist fall soil means these plants will settle in happily, making this truly the best season to get them in the ground. We also held a raffle, and we’re excited to announce that Sarah Reid was our winner! Congratulations, Sarah! Thank you to everyone who came out to support us, explore the gardens, and bring home plants. We’re already looking forward to the next time we can gather and celebrate together. (Here’s a look at some of the wonderful people who joined us that day!)
By Dale Hickey October 6, 2025
October might just be the best month of the year. Leaves turn gold and crimson, the first steady rains return to refresh thirsty plants, and the garden hums with renewed activity—birds darting through the branches and insects busy among the late blooms and fallen leaves. Soon, the season’s magic spills beyond the garden as little goblins and witches knock on our doors, candy bags in hand. For gardeners, fall is more than just a feast for the senses. Cooler days and moist soil create the perfect conditions for transplanting trees, shrubs, and perennials—plants settle in more easily now than in the heat of summer. (Unless we're talking Agaves, transplant those after the Spring rains) The softened ground also makes digging and dividing far less of a chore. Even challenging tasks like ivy removal become easier when the soil gives way beneath the roots. Autumn truly is a season of opportunity: a time to plant, to tidy (or not!), and to prepare the garden for the year ahead while savoring every bit of its fleeting beauty. The last week of October, but sometimes the first week in November, is the last time that we mow weekly. Be watching your lawn so that you can decide the best time for yourself. Occasionally, we will have a warm Winter, and a touch-up may be needed. Eco-lawns- Depending on the seed mix, you can leave these as is, allowing them to form more of a meadow look. This can help create more habitat for wildlife and insects. October is the first month when we have a higher probability of transplanting from moist, soft soil into a damp, soft new hole. All plants of course prefer to be dormant (asleep) when being transplanted. So, the coolness of October and the (hopefully) moist soil are perfect for the beginning of the transplanting and planting season. The best planting time typically extends from the rainy season until approximately the middle of March. Now is the best time to plant in Western Oregon! If you want Spring blooms, make a trip now to your local nursery and purchase Spring bulbs to plant in the ground! October/November are the traditional months for planting Spring bulbs. You can also plant fall bulbs now, such as Saffron Crocuses and Colchicums. The rain will bring out the dormant, sleepy slugs, so getting slug bait out in your beds now will hopefully thwart off a winter and spring invasion of new baby slugs! The Fall leaves will start to drop all over your yard. Remember to keep them off the lawn/grass areas and instead rake or blow them into your beds. The wet leaves will damage your lawn if left on, sometimes only in a day or two, but they can become great free compost/mulch for your planting beds. Lots of insects use this leaf litter as their habitat. This is a great way to invite more birds and wildlife into your garden as they forage through the leaves! I love watching them! This month, place mulch around potentially tender plants such as Cannas, Fuchsias, Dahlias and Calla Lilies. This will insulate them from frost or freezes. Get some bark mulch or chips and spread them 2” thick over any bare areas in your beds for the rainy season. This will prevent erosion and help choke out weed seeds from sprouting. If you are seriously into gardening, here are some more tips. Plant garlic bulbs now for harvesting next summer Pick any green tomatoes and bring them into the garage to ripen. Harvest Sunflower heads and bring them into the garage to dry. These are great for birds and human snacking. Sow native hardy annuals- you can sow these on any bare soil, or you can use gravel mulch and direct sow on that! Some great hardy annuals are California poppy (Eschscholzia californica), Red Maids (Calandrinia ciliata), Farewell-to-spring (Clarkia amoena) Gilia capitata, to name a few. Feel free to reach out to us if you have any questions about hardy annuals! A hardy annual is an annual plant you can sow in the Fall, and it will germinate, survive the Winter Months, and grow enough roots to sustain itself. Most of our natives will not require additional water the following year, and if they are happy, they will seed around and come up where they are thriving.
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
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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: