Okay, you liked the reminder from earlier this week about the return of autumn Shotweed? Well, here’s a reminder that the dandelions are showing up again. They love this weather. The damp soil allows them to really power up their tap roots. So, get out there and carefully remove them now. Read more about removing dandelion and putting those weeds to good use: (more…)
Archive for the ‘weeds’ Category
Managing Weeds in Seattle – Dandelions
Friday, October 23rd, 2009Managing Weeds in Seattle — Shotweed
Wednesday, October 21st, 2009In Seattle our cool season annual weeds are popping up their tenacious little heads again this autumn. Among them — Shotweed. It loves our mild temps and gentle, if persistent, autumn rains. Despite being a weed, it can be quite lovely carpeting flower beds in a lovely brilliant spring green. But as lovely as it can be, it is still a weed. So, after introducing a client to it in her own garden earlier this week, I realized it was time to remind all of you gardening readers that this weed is a multi-season menace. As in February when I first posted this article, now’s yet another time to work on clearing it out of your beds. Read more in the original post that follows:
Garden Coach Answers Reader Question on Horsetail and Spiderwort
Tuesday, May 5th, 2009Linda from Northville, MI writes:
“I have Spiderwort that is spreading beyond control. Is there a way to remove it other than digging up the whole bed and hoping that I got all the roots? I have a similar problem with horsetail grass. I wish I had known they were invasive when I planted them! “
Linda thanks for writing in. You are not alone in your regret of Spiderwort. Years ago I planted it in my own garden and spent quite a while working on eradicating it after the fact. My answer is dig, dig, dig. Spiderwort spreads prolifically underground, so removing the top growth as well as the spreading roots is critical.
Here’s a tip: Use a garden fork (available here) to losen the soil around the entire plant. A fork will lift and seperate the soil and roots where a shovel will slice and pack the earth. Once you have losened the entire soil area, then get down on the your hands and knees with your hori-hori (available here) or other hand tool, and carefully lift and seperate the roots and entire plant from your beds. If you take care to remove the entire plant and then watch the area carefully for new invaders regularly for the rest of the season, you should be able to eradicate it fairly quickly.
Now, as for horsetail…
I’m sorry but I don’t have the ideal eradication method for this tenacious weed. There are many plants that fall into the common name categories of “horsetail”. In my experience these sporing spreaders are nearly impossible to completely remove once in place. I’ve even heard tales from fantastic fellow gardeners who have renovated entire gardens, dumping 10′ of soil over horsetail areas only to see the horsetail make its way onto the top of those newly built areas. So, what to do?
Well, one of the best ideas I’ve heard is landscape with the horsetail. Learn to live with it. Incorporate it into your design area. Truly, it has unique form and texture, so if you can work with that and plant around it, go for it.
Okay, so you really don’t want to plant around the horsetail. You want to get rid of it. Well, keep on breaking and pulling. Yes, you’ll create more growth, but if you keep beating it back and keeping it from photosynthesizing, you may just be able to beat it back (or your great-great-grandkids might if it becomes a task you hand down in the family).
Best of luck & thanks for writing in!
Garden Coach Teaches You to Eat Your Weeds!
Monday, March 2nd, 2009That’ll serve’m right…right? Turn annoying garden weeds into a delicious snack you crave. Get paid back in nutritious energy foods for all the hard work you put into pulling those suckers out! Just hope you don’t start craving them just as you eradicate them!

Fresh Nettles & Nettle Tea
So, maybe you’re skeptical about eating the weeds that volunteer in the garden. You’re not alone. I still haven’t tried eating shotweed, and I’ve got more than one bowlful of salad makings from that sucker out in my garden. I have been spying my dandelion leaves a little more closely. When I they get just a bit bigger, but before they start budding to bloom, I’m planning to harvest them to eat this spring.
Our gardens create a bounty of weeds during the growing season, and I continue to be amazed at how many of them are edible. Let’s be clear, you need to know how to identify the plants before you go eating willy-nilly in the weed patch. But, once you know what you’re pulling, odds are your compost bin will be a little lighter, your wallet a little fatter and your belly a little more full. Looking for a larger list of edible weeds? Check out the Tilth Maritime Garden Guide to start.
This weekend at the farmer’s market, the local foragers (Foraged & Found Edibles), were offering bags filled with fresh stinging nettles. The name sounds scary, and it should. If you get scratched by the nettle barb, you’ll get a nasty stinging rash — that goes away pretty quick. But, if you can harvest this wild plant successfully, you’ll have a fantastic green that tastes a lot like spinach. It’s packed with vitamins A, D and C. And, it’s been the first greens of the season eaten from the wild by Pacific Northwesterners for, well, who knows how long. Even my favorite recipe book, The Herb Farm Cookbook (available here in the books section), has recipes using this weed!

Weedy Smoothie
Now, I’m not likely to go foraging for this green myself, but when a big bag filled with this weed is offered by local foragers, from local forests, at prices less than the cost of a bag of local farmer’s market greenhouse-raised kale, I’m going to snatch it up.
Gingerly, taking care not to get “stung”, I dumped about half the bag into a steamer pot and steamed it for a bit. All recipes promise that after cooking briefly the nettles’ sting is gone. Still, steaming left them looking a bit fuzzy for my taste, so I dumped them in the boiling water for a bit longer. We used tongs to squeeze out the excess water as we mounded it onto our plates, and then we splashed the pile of weedy greens with vinegar (something every weed hates). They were delicious, and I’m not dead yet!
In years past, I’ve enjoyed nettle tea (aka swamp water), so we saved the cooking water, which wasn’t salted. However instead of drinking just the nutrient rich cooking liquid, I added it to our morning smoothie, and it was fantastic. Here’s a recipe for making your own weedy smoothie.
Make it and take it out in the garden as fair warning to all weeds — sprout here and you may just become my dinner…or breakfast…or even high tea!
Important Note: As with any new food, take care trying it out for the first time. Food allergies lurk in places we may not expect. Try a weedy diet at your own risk and to your own health!
Nettle Weed Smoothie Recipe
- 3/4 cup nonfat plain yogurt
- 1 cup frozen peaches
- 1 cup frozen strawberries
- 1 cup apple juice
- 1 cup nettle juice
- 1 T. honey (optional)
Place all ingredients in blender. Blend on high for about 5 minutes or until the fruit is pureed. Pour into tall glasses and enjoy. (serves 2)
Midwinter Garden Clean Up
Monday, January 19th, 2009Finally Seattle is getting a weather break. The sun is out, and the sogginess is, well, a bit drier for the moment. It feels like Spring! This combo gives your itchy garden fingers the perfect opportunity to get a little work done before wintery weather returns…and you know it will. This is only January for goodness sakes!
Here’s a quick list of garden work items for a midwinter Spring break:
- Cut back spent perennials: Cala Lilies turned to mush? Asian lily stems, mum stalks, gaura, erigeron, hosta, and peonies bent, browned and lurking? Cut them back now. Likely, you’ll see tight green growth below all the brown…well, except in the case of the lilies which are hiding deep in the soil. For a true gardener, this work is especially rewarding. I’m always finding treasures tucked into the beds; things that I’d forgotten since they were in their splendor months ago last spring/summer.
- Cut back spent grasses: Miscanthus, switch grass and other true seasonal grasses are about done for the season. Yes, you can leave them up to catch the sunlight. But, if yours look anything like mine did after the snow, the garden will look better with them trimmed and tidy. Plus, if you cut them now, you won’t need to worry about damaging new growth that will start emerging, possibly, as early as next month.
- Look for blooms: Last week I posted a few blooming finds in my garden for Bloom Day. Just a few days later while working in the garden I found even more Hellebores popping up their heads, a few primula blooming and lots of buds on my Azara to watch over the next few weeks; it will be blooming soon. Plus, as I crawed around on my hands & knees, fragrant Sarcococca perfumed the garden.
- Cut out Crossing, rubbing, damaged, dead & broken stems and suckers: Deciduous plants are dormant. Seeing “bad lines” and damage is easiest when they’re in this state. Even if I’m working with a plant that has already set flowering buds, I may decided to remove a bad stem right now. Once it flowers and leafs out, I may have a hard time finding that problem spot — or I may forget about it entirely.
- Weeds: It never ends, right? Creeping grasses are everywhere. Shotweed is popping up. Dandelion, which could make a fantastic winter salad green, is rooting in. But the soil is loose and moist. Everything is easy to pull, so get them out now!
- Mulch and top dress: Yes you can! If you clean out a bed, yes you can mulch. While beds are dormant, adding mulch is a great chore to get done.
- Examine Seedlings: Lots of little seedlings are popping up, and not all of them are weeds. If you know what to look for, you might find some fantastic babies to move around the garden. I found a huge crop of snow-in-a-mist yesterday…almost enough to give in and call it a weed!
There are plenty of other chores to work on, but that’s a great start. Avoid the temptation to rip out things that you think might be dead. Odds are many will come back to life next spring. True, I found a couple of plants that I’m certain are dead (my Eryssium-turned-tumbleweed, for instance). But, if you’re not sure, I encourage you to encourage the plant to keep on keepin’ on. Spring is months away. Right now, we’re just getting a tease!
Eat Your Corn! Biofuel Can be Derived from “Useless” Weeds!
Thursday, January 1st, 2009On this, the first day of a new year, 2009, I am reminded of one of my favorite sayings: “A weed is a plant whose virtue has yet to be discovered.” (Ralph Waldo Emerson). And, this comes with some pretty cool news!
Word has it that a weedy, seeming useless African plant offer biofuels that can even help power up a jet! And, the Jatropha doesn’t produce anything we can eat (or feed to animals we eat). Sure, it has its challenges and it isn’t a 100% petrol alternative, but I was glad to read that Air New Zealand is actually testing this out and the Honeywell corporation is investing in alternative fuel development. My favorite statement about this testing from Honeywell: “We just adapted what we tend to do in a [oil] refinery for this application. This is not rocket science, we feel very comfortable scaling this up.” The saddest statement: “Eighty-five percent of the cost [of the biofuel] is the feedstock,” Holmgren says. “It’s pretty hard when the jet fuel made from oil sells at a lower price than soy.”
And, apparently, it can be grown in some pretty rough environments — ones not good for growing our food. The fuel from this test was grown in places like India and Mozambique. Dare I suggest that something like this might be an alternative crop to poppy? Keep on savoring your soy and your corn and even your corn-fed beef, if that’s what you’re into.
As a member of the tenacious Euphorbiaceae family, which also includes that Poinsettia you’re about ready to compost after the holidays, I’m not surprised to hear the Jatropha genus can grow in rough spaces. Here in Seattle, we battle a few Euphorbia weeds, and we often plant Euphorbias in our drought-tolerant gardens. They’re beautiful and not very thirsty. They can be toxic, even causing chemical burns to some gardeners, but they’re unbeatable for their beauty, easy care and tenacity. It’s nice to know that their toxic sap may have a great use for humanity — giving us the power to travel! With enough testing and investment, perhaps this “weed” will provide a complete alternative to deadly, costly petroleum. In a year that promises change, this is a bit of good news for the future we need.
Freezing Weather Kills All Garden Pests & Weeds!
Monday, December 22nd, 2008Sorry to disappoint you, but freezes don’t kill all the garden insects. I lied. Still, some of the flora and fauna pests took a beating this week. And, unfortunately, others may be trying to make your home their home. Despite the freeze, critters are buggin’ out there!
Adult slugs are probably done for the season, but their eggs are laying dormant waiting for the temps to get to around 40F before they burst forth to forage for food among our snow-tortured, blackened plants. Root weevil larvae is resting quietly in dormancy, deep in the soil where it is unlikely to freeze. (And knowing those suckers, it’s unlikely that a freeze would take them out anyway.)
Bee nests, like this hornet nest, should be vacant after a deep freeze. And, the bees won’t repopulate it next year. Taking them down to explore with kids is fun — if the wind hasn’t blown them away already. Only approach them if you KNOW the weather has frozen and the nest is abandoned. And, as much as you might think of hornets as a pest, remember they have lots of beneficial purposes in the garden too. Plus, they aren’t aggressive so long as you don’t attack their homes!
And, a freeze isn’t going to do a darn thing to stop weed seeds from sprouting. Seeds can remain frozen for years and still remain viable. So, unfortunately, we’ll all be weeding next spring (or even sooner if the weather gets back to normal).
So the good news is, adult slugs and other bugs are probably dead and gone. The bad news is your garden is going to face a resurgence after things melt and we get back to our temperate Seattle winter. But, perhaps when those slug eggs hatch they’ll starve unless they decide to start snacking on emerging shot weed. Now wouldn’t that be a coup d’etat in the garden?!
And, rodent pests are particularly invasive during this weather. Likely, they’re moving into our homes, autos and garages seeking food and shelter from the storm. Make sure your house is sealed up tight. The last thing you want to deal with is rats, mice or squirrels taking up residence! Not only will the adults survive happily in your attics and crawl spaces, but so will their children, grandchildren and so on…
Quail Encounter Near Seattle
Wednesday, July 30th, 2008During my childhood years in Northern California, I often encountered families of Quail scurrying through my outdoor playgrounds. We lived in what was then a remote western town with Hwy 101 running through it. Our house was on the semi-rural outskirts of town with a hillside in front of us and a forest behind us. Cattle fields were nearby with faery rings of redwoods at the top of the hillside where we played. Creeks filled with salamanders and clay bullets and water snakes offered cool resting spots for my sister, my dogs and me. We would pick miners lettuce for dinner salads and blackberries and wild apples as snacks. More often than not families of deer would freeze in our paths and then wander away. And, cute families of quail were always scurrying out of the undergrowth ahead of us with Daddy bird’s little decorative cap leading the way.
As I was measuring a new client’s site just north of Seattle, I heard the familiar peep of California quail in the overgrown weeds of her recently clear-cut site. (I can’t talk about the clear cut; its way too depressing and all-too-common in her area.) I watched the weed tops as the quail moved through them and caught a glimpse of the colorful adult male and then the duff colored female adult. But, it was obvious an entire family was with them. Too many tiny peeps to be a couple alone on a date.
I moved away from the area where they were hiding and went to work in another spot. Later, they caught my eye again. And, try as I might to capture a photo, they all eluded me. Eventually, quite camera shy, they returned to the blackberry and other brambles in the creek, leaving me alone in the weedy field that had not long ago been a forest of Pine, Doug Fir and Hemlock. I look forward to help design a native garden to help rebuild the habitat, offering the quail and other wildlife (as well as the homeowners) something more to live in and feed from than a sorry field of nipplewort, dockweed, braken fern and stinky bob.
Why & How to Weed Now!
Monday, June 9th, 2008Late spring is such a beautiful time of year. Everything is freshly leafed out. Flowers brighten even the dullest of shrubs. Even on grey, rainy Seattle spring days the beauty of spring is refreshing and almost jarringly alive. Digging into the soil awakens scurrying beetles and various milli- and centipedes. Fat worms and young tiny ones wriggle through the moist, warming soils. And, amid all of this various seasonal beauty, weeds erupt so fast we can almost watch them grow.
Weeds made up a classification of plants that I admire, sometimes more than many of the persnickety ornamentals that take years to establish and take off in the garden. Don’t get me wrong, I would prefer less weeds and more strange and wonderful oft unseen plants in my garden. But, let’s be realistic, weeds happen, and we need to figure out how to live with them — in balance.
In my own garden I have a fairly high tolerance for weeds. They pop up in abundance, and I pop them up and out as I can. This means some areas get over-run with grass weed, shot weed, chickweed, nipplewort, dandelion, fireweed, vetch, braken fern, dock weed and others periodically. But, through the years I’ve learned a few tricks for keeping each of these under control — even when I don’t have the time to eradicate every sprout right away.
For the taproot weeds like dandelion and dockweed, I avoid tugging and yanking without a tool to ensure I get the taproot out. If I pull off the top and leave the taproot intact, these plants have so much stored energy in that big root that they tend to build a stronger root system in response to my 1/2-effort weeding work. And, I end up with a stronger weed in the end — and possibly more of them!
But, sometimes I’m passing through an area of the garden, and I don’t have my tools, and I don’t have time to go grab them. Rather than leave a flowering dandelion head in place so it can spread its seed the minute I walk by, I pop off the flower or seed head and carefully dispose of it. I leave the rest of the plant intact to pull properly later. By only removing the flower/seed portion and leaving the rest of the plant intact, I avoid causing the plant to hunker in and grow stronger. Later, when I have time, I return and remove the entire weed using my garden fork and hori-hori.
If I happen by a cool season annual like shotweed, I pull them easily by hand (tool or not). Ideally, I pull them before they have set seed or the seed will fly everywhere when I pull it. If the seed flies, I likely create multiple plants in response to the single one I just removed. And, when I pull weeds like shotweed and fireweed, I am careful to deposit it into yardwaste quickly. These amazing buggers can replant themselves if they are uprooted and left in the bed.
Braken fern is a difficult bugger in my garden. Like with horsetail, which I fortunately do not do battle with in my own garden, it is one to pull and break. Yes, the broken roots will be encouraged to branch, and a new frond will pop up somewhere else. But, remember that root systems do not store infinite resources. So, by pulling regularly, you will be depriving the plant its ability to photosynthesize by which it creates its own food. Eventually, the roots will run out of energy. It might not run out in your lifetime, but we can hope, right?
Vetch is another spring nasty that winds its way through my overflowing perennial beds each spring. I do my best to trace its twining stems back to the point of origin and pop out the entire plant. When its emergence point is located, vetch is easy to pull. The problem is in finding that point! If you cannot find it, do try to remove the stems so that the plant does not set seed and spread. The good news about vetch? Bees love it, and it a nitrogen fixer. See, weeds can give back!
Bindweed (aka morning glory) is another nasty that so many of us battle. At our best, we unwind it from our trees, shrubs and flowers, and follow the vine back to the soil where it emerges. Then, we dig and follow the root to its point of origin, taking out every last bit. Yes, I’m laughing too. Getting every last bit is nearly impossible when the root dives down suddenly several feet and travels under our neighbor’s retaining wall. But, we do our best. Remember, it takes just a tiny bit of this root for the vine to re-emerge. And, a broken root means a branching root. So, if you break it and leave it in place, more than one shoot may emerge next time. But, keep pulling and consider this one to starve.
Grass weeds, like so many others, have an uncanny ability to adapt to every spot where their seeds land. These plants can grow in a lawn where it is mowed regularly. In this situation, the weed may only grow to 2″ tall before it sets seed and spreads. Then, in another garden bed, the same plant may grow 2′ tall before it sets seed and spreads. Some have roots that travel while others have shallow rooted roots that stay intact. Try your best to pull the entire plant, roots and all, to reduce the likelihood that you’re pulling in the same place a few weeks later. All over Seattle, grass weeds are thriving in the cool, wet weather that alternates every few days with warm sunshine. Ideally, pull them before the seed begins to disperse and the soil hardens in summer. For those with travelling roots, do your best to get all the roots!
Truly, weeds are adaptable. And, unfortunately, the slugs and weevils don’t seem to favor them. Ah, that we could put the fauna pests to work in eradicating the flora pests! Now is the time to get out and pull the weeds from your beds. If you have only a few weeds, pull them before you end up with a field of them. If you already have a field of them, set aside a few hours and eradicate them before the weather changes toward summer.
Right now, as we continue to receive abundant rains, our soils are still loose and easy to work. Ideally, remove deeply rooted weeds several hours after a good rainfall. This will ensure that the soil isn’t completely saturated. Having it moist but drained will reduce your compaction impact and will make pulling weeds easier.
Don’t have time to pull all those seedy weeds? Consider, at the very least, removing the seed heads to reduce the weed’s ability to spread its progeny. And, put a note on your calender to get out and pull them soon after or you’ll be repeating the cycle in no time.
Wondering about using weed killers? I’m not an advocate of applying herbicides in the garden. Yes, there are some instances where a one-time treatment may be necessary. However, I do not believe that they should be used as a regular method to control weeds. Frankly, when I see a garden with beds devoid of any weeds, I avoid it as I would a toxic waste dump. Sure, it may seem easiest to apply a chemical to the garden to do your chores for you. But, I’m not going to advocate for this. And, really, I think that’s a whole other discussion for another time. What I will leave you with is my belief that we become healthier by working with the soil and the garden. Our children learn and our pets thrive in a diverse garden space devoid of chemicals. So get out there, breathe in the clean, fresh fragrance of spring. Dig your fingers in the soil. Embrace the earth. Grow!
Planting a Princess Tree…or not
Thursday, May 22nd, 2008J. Fullerton of St. James, MO writes, “I would like to plant the seed of a Princess Tree. Where can I get information on ‘how deep, where, and other information to make this a success’?”
Well Jim, I’ll start by saying that I haven’t grown a Princess Tree myself. As well, keep in mind that seed-grown means genetic diversity. If you plant your seed, you may not end up with an exact duplicate of the tree that you think is its parent.
And, since common names can refer to many different trees, I’m going to start out by saying that I’m talking about the Royal Paulownia or Paulownia tomentosa.
Please read up on on the invasive nature of this tree before you go any further: http://www.invasive.org/browse/subject.cfm?sub=2426
If you still feel it is necessary to plant your seed, I suggest you refer to The Reference Manual of Woody Plant Propagation for detailed information.


