Archive for the ‘Watering’ Category

Is Your Garden Ready for a Freeze?

Friday, November 13th, 2009

The cold wind blowing and the churning furnace pouring out warm air woke me early this November morning. Rain is hammering out of the sky, blown in circles by heavy winds near the planet surface driving it noisily into window panes.

Frozen Branches

Frozen Branches

And, weather reporters are warning snow may follow the morning downpours. Although I doubt we’ll see snow in the city, these reports — coupled with the ice we’re seeing on early-morning windshields — reminds me to get a few last minute freeze-proofing chores done this morning.

Hopefully, these tips will help you get ready as well. Who knows? Now that I said I doubt it will snow, it probably will send down a few flurries around town just to prove me wrong. (more…)

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Invasive Roots in Raised Beds & Dying Lavender Questions

Wednesday, January 14th, 2009
Raised Beds Below Sorbus

Raised Beds Below Sorbus

Patrice from Penn Valley, CA writes in to ask two questions. The first about invasive roots in her raised beds; the second about her dying lavender:

“Hello, And thank you!!!! We created raised beds from rock on our property in a clearing with a 7 foot deer fence. We have a few fruit trees but mostly veggies. All organic and started with a wonderful organic/compost soil. THe first year good and then the next 2 not so good. This year when I clean the beds it is full of small roots. It is like a Potted plant if you take it out to replant and all the roots are there. It is not that bad but pretty bad and we had to take out lots of roots this fall and added more soil but the plants are all stunted and no production. We tested the soil and amended correctly and still no luck. We have some large oaks on a couple of edges of the garden and I read that the send their roots. Is that a problem? Any suggestions?”

Patrice, first, thank you for writing in.

Second, It is difficult for me to assess this without seeing/touching it. However, given your description, my guess is that the Oak Trees or possibly other nearby shrubs and trees are sending their roots into your raised beds. In my own raised strawberry bed, I find roots from my neighbor’s Sorbus every year. Tiny tree roots within the first 18″ of the soil are critical to trees; they are the ones that take up water and nutrients. Removing these can make it hard on the tree. Did you encounter a lot of roots when you built the raised beds themselves?

Third, could it be that the plants you’re installing in the raised beds are actually becoming root-bound within it? Did you take rocks and create an outline for a raised bed, or did you actually build planters of some sort into a rock area? If you built a planter of some sort into rocks, you could have created a pot/container effect which can lead to this root build up problem.

Let me know if you have more thoughts about this or questions I can answer.

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Ten Year Old Provence Lavender with Sage & Rosemary

Ten Year Old Provence Lavender with Sage & Rosemary

And, Patrice’s second question about lavender:

Also many of my lavenger grosso have died and it is hot and dry in these sierra foothills so they are on a drip system. Do you think too much water which I find hard to believe?

Lavender do like to run pretty dry. Once established, they should need very little supplemental water. That being said, they can dry out if they don’t get enough water. Are yours getting soggy and black? If so, it could be that you’re providing too much water. Also, I have found that lavender falls into that “short-lived-woody-perennial” category. Yes, they will live for years and years, but after about 5-7 they often get leggy and might be worth replacing in the garden. Of course, that depends on your care program, your lavender cultivar, and tolerance of how plants look and perform in the garden. In my own garden I have one lavender that looks fantastic every year, and it has been in the same place for at least 10 years now.

Thanks again for writing in. Please let me know if you have follow up questions or thoughts.

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Pine Tree Companions in Zone 5 Question

Wednesday, July 23rd, 2008

L. Young of Schaumburg, IL asks,

“Hello, I live in zone 5 and I was looking for some plants that would survive under a pine tree. I tried hosta\’s but they died. Do you have any suggestions? Thank You”

 I think your best bet in finding a solution is to contact a garden coach or a nursery near you for assistance. Since so many things can affect a planting, beyond just being under a pine tree, it is important to evaluate many aspects of your environment to make good choices. For instance, I wonder why the hostas died. Is there actually a lot of sun exposure under the pine tree? Did you water the hostas? Were they planted properly? Do you have the right soil nutrients to support hostas? Did you over or under fertilize them? And so forth….And, finally, it might be worth asking if this is a large tree? Often it is best to leave the root zones under large trees alone and not do a lot of planting under them.

There are several plants that do well in dry shade, which is what I’m assuming you’re dealing with. But, do keep in mind that any plant that is labelled “drought tolerant” or “tolerates dryness” may require several seasons of consistent watering in order for them to become established. After they become established, tapering off watering allows them to then acclimate to their dry environment.

Brunnera and CompanionsOne plant I love for dry shade that may perform in your area is Brunnera ‘Jack Frost’. Not only does this herbaceous perennial offer beautiful, broad, heart shaped leaves, but it also has brilliant silvery tones that brighten up dark areas. (See the middle plant in the photo) And, it blooms blue like a forget-me-not but without the “stickery” seeds. It will tolerate some sun with sufficient water. And, it will need to be watered regularly until it is established.

Thanks for writing in and good luck!

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Is There Enough Moisture in Your Soil to Sustain Your Lawn and Ornamentals?

Friday, April 4th, 2008

This is just a quick reminder that spring rains in western washington can deceive us into thinking our soils are holding enough water to sustain our plants. It may be gray and drippy for days on end, but the rainfall totals may not be significant enough to keep your soil moisture levels consistent for your plants.

If you’ve got clay or have been amending your sandy soils with organic mulches, your garden will have better moisture holding capacity. But, with lower rainfalls, your moisture may be getting trapped in upper layers of mulch rather than getting down to the deep feeding roots of your plants. And remember, just because your soil is hard to dig in doesn’t mean you have clay. It may just be compacted!

 So, this is just a reminder to get out in your gardens as spring goes on to do a little digging and see how deep your soil is moist. If it’s dry a few inches down, sadly, it may be time to turn on your irrigation or begin hand watering. This is especially critical if you have newly installed gardens or gardens that are just a year or two old. As your plants get established, even if they are labelled “drought tolerant”, it is important to water them consistently. If you don’t, you may lose the investment you made to install them. 

And, don’t forget about your lawns. Spring is when they green up and look great, but are their roots continuing to get deeper into the soil profile or are they living with shallow roots that require constant watering. Dig a hidden patch of your lawn to see how deep your living lawn roots are. The deeper you can get them to grow now, the less watering you’ll need to provide in the summer as they’ll have the ability to tap into the deeper water resources you have helped build up for them this spring.

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Garden Coach on Moving a Dormant Stewartia Tree, Part II

Thursday, March 27th, 2008

jd_320_240_2.jpgI know it’s taken me a lot of words in part I of this piece on moving trees to get to actually sharing a tree moving experience, but I do think it’s important to discuss why we might move a tree and the variety of caveots associated with tree placement and relocation. Sure, every situation will have a different set of rules applied to it, and I freely admit that I haven’t, and couldn’t possibly, address every tree and every scenario. However, here’s the steps a client and I took in late winter to move a small Stewartia that had been planted in the “wrong” location.

The Stewartia in question had actually been located into a garden bed, away from the house. In many scenarios, it was actually just fine where it was. However, my client needed (wanted) to put in a patio to make their garden more usable. And, the Stewartia was sited in the middle of the best spot for this patio. So, together, we decided to move it this winter before it leafed out but after the chance of a big freeze would limit its ability to root rapidly into its new location. (As I write this, I laugh, thinking of the freezing rain we had last night. Just enough frozen stuff to make me a little bit nervous.) My client had decided it was worth trying to save the tree rather than just cut it down and dispose of it.

To get ready for the job, we evaluated the tree, deciding which side would be the new “front” as it was going from a circular bed to a bed that would give a focal, “front” view to the tree. Then, we dug the new hole for the tree. We wanted the new location ready for the tree as soon as we got it out of the ground. We estimating how much rootball would come with the tree, based on how much rooting area we thought we could handle, and dug the new hole accordingly. To help ensure the heavy new tree wouldn’t sink when planted, we lightly tamped down the base of the new hole and made it quite wide. Then we went back to the tree to begin the process of moving it.

First, we made sure we had the right tools. These included several sharp shovels, several hori-hori knives, a large tarp, several ground shears and a ground saw. The hori-hori knives were to allow us hand digging; you could use your favorite hand tool/trowel if you prefer. The ground shears and saw are tools that I specifically only use underground. Once tools come in contact with soil, they tend to dull up pretty fast. I tend to use my older tools for these tasks, but I keep them sharp! Before we began digging, we cleaned and sterilized all the tools. We used a flame torch on some of the shovels and liquid lysol on all of the hand tools.

Then we began our work. We had a team of four. Three of us did most of the digging. The fourth came in to help with the final part of moving.

Two of the team used sharp shovels to begin digging a perimeter around the base of the tree. My rule of thumb on moving a tree is to “dig as big a root ball as you think you’ll be able to move”. Yes, that’s vague. If you’ve never moved a tree before, you might want to do it with a professional the first time! Once the main perimeter cuts were made with the shovels, we got in with hand tools and began a merry-go-round working our way around the perimeter. As one person dug, another would follow with sharp shears and saws to clean cut any large roots. Remember: the small “hairy roots” in the first 18″ of the soil are the feeder roots. You want a lot of these. The bigger roots are mostly scaffolding roots, which hold up the tree and give it stability and nutrient storage. Clean cuts on these are very important.

As we worked our way around and around the tree, it became apparent that the tree hadn’t been planted well in the first place. I wasn’t surprised. Based on the age of the tree, it should have been much larger than it was. When we found the original wire tree basket still attached to the tree roots, which had kinked around the metal, I knew this was part of the reason the tree’s growth was stunted. As well, nearly all of the scaffolding roots were growing on one side (the north side) the tree. So, we did what we could to remove the dangerous metal pieces as we dug.

Eventually, we had a good depth around the perimeter of the tree. Now, we had to cut it from the bottom. I knew we wouldn’t have much to deal with in scaffolding roots since they seemed to run more laterally than downward in this tree’s case. Gently, one of our team tipped the tree sideways as another cut the bottom of the tree.

jd_240_320_1.jpgOnce the tree was seperated from the ground, we gently tipped the tree to one side and slipped a large tarp under it. We tipped the tree the opposite way and pulled the tarp through. Yes, easier said than done, but it is do-able with patience.

Then, with four people working on the tree, we pulled, tugged and pushed to get the tree on the tarp out of the hole. Again, easier said than done, but it is doable. And, again, don’t tug by the trunk or limbs of the tree.

With the tree out of the hole, we could now see the root ball in its entirety. One team member returned to the new location hole and dug some more to accomodate our large rootball. As he did this, I evaluated all the roots and corrected any torn ones by cutting them cleanly.

Then, we worked together to spin the tree, on the tarp, so we could drag it to the new hole and easily drop it into place. Yes, you’re right, “easier said than done”. But we did it. We took care not to smack each other with limbs. We laughed. One of us gave the “1-2-3-heave!” count, and away we went. Soon we had the tree in its new home.

We planted the tree in, taking care to bury it only as deep as it was planted originally. And, we put a hose on the new planting on a slow drip to water it in. (My client continued to do this for a few days to help supplement the light rains and give the tree a chance to root in well.) As the water ran, I trimmed out broken branches only. We’ll let the tree decide which limbs it wants to release this spring. There’s no need to try to trim it to match the top to the trimmed roots on the bottom. Also, we trimmed branches off a large tree beside this tree’s location. Eventually this larger tree will be removed as it is in the wrong place, but for now it is staying as we watch and see how the Stewartia takes root.

When we moved the Stewartia, its buds were beginning to swell, but they hadn’t opened. Much of the energy a deciduous tree uses to open spring buds is stored in the stem near the bud. So, the root system doesn’t get tapped much for this process. This is why sometimes a plant will bud out in spring only to die right after. Its stems had energy, but its roots did not in this case. (Again, I’m generalizing here.) Once the bud opens, the leaf begins photosynthesizing, feeding the plant. So far, several weeks later, the buds have opened and the tree seems to be doing well. My client and I look forward to seeing how the tree progresses into the spring. When the ground gets warmer, I’ll probably recommend a mycorhizzae application. For now, I just hope the ground doesn’t freeze!

Oh, and the patio space is filling in nicely. It has been excavated, and the crushed base material will be laid in this weekend.

Any questions?!

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First tomatoes & return of the passionflower

Monday, July 30th, 2007

This morning I went out to run my hose bib drip irrigation. I would love to have a fully automated system, but that’s just not realistic for my garden at this point. We have a nice drip & spray head system that does the trick. For me, its fine to get out and check the beds as I run through the various watering zones.

When I started up the system in one of the vegie gardens, I noticed a squash leaf was blocking a spray head. I went to adjust it, which is pretty simple with this system, and as I peeked behind the leaf, I saw my first two tomatoes ripening. (Yes, I did write about a week ago re: a couple of tomatoes ripening, but I don’t know how much I count those tomatoes. They are on a very stressed plant that won’t do much more.) The tomatoes I found today are on a bush full of fruit, so we’re in for the motherload soon. This plant cultivar is ‘Stupice’. I’ve been growing Stupice tomatoes for about 4 years in a row now. They produce incredibly well in Seattle. The fruit rarely cracks, it has relatively thin skin, the flavor is great, it is disease resistant and the fruit clusters are lovely. Its pretty reliable.

And, as I was weeding, I noticed that my passionflower vine has found the energy to arise from its deep roots. Some years the top growth makes it through the winter & I would have a vine filled with lovely blooms by now. After a winter like we just had, it has to struggle up from the roots. I didn’t expect much (or actually anything) out of the plant this year, but it looks like we’ll get some late beauty from it this summer/fall.

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Watering, Peach Brown Rot, Garden Phlox, and Squash Viruses – my daily journal.

Friday, July 27th, 2007

After all the rain we had in Seattle last week, I was lulled into thinking summer was over. Today’s sunny warmth reminded me that its only the last of July! We still need to get through the rest of our drought cycle. I went out & realized my container gardens were dry, so I watered those. Then I tested soil moisture levels in my garden beds with the tried & true method of digging with my fingers. Sure enough, the top few inches are dried out again. Its somewhat moist below, but by tomorrow I need to start running irrigation again to keep those levels up. Nothing is crashed & my vegies are going gang-busters.

I did remove the one squash with tell-tale virus symptoms. It was still producing fruit, but its neighbors are healthy & I didn’t want to lose those! My delicata squash & cucumbers are starting to produce female flowers with tiny fruits below. Yay! I hope we get lots of them! My “bush beans” are still looking like they want to be climbers, but still no climbing tendencies. Maybe they’re just going to be leggy/tall bushes. We’ll see. Small buds are forming!

I still have chard. So far none has gone to seed. I moved them into a shadier location as they had been in full sun. I’m hoping this will keep them going even longer.

My poor sad peach really is going to have to go. Yeah…yeah, I’ve been saying that for a couple of years now. The only thing that’s keeping it in the ground is that I don’t want to take on another bed renovation until I finish the one that’s already underway. Why does my peach need to go? Well, it has the wrong fuzz — yeah, brown rot has moved into the fruit & its plain gross. Plus, its attracting rats. Yuck! If I pick the fruit before its fully ripe, I can beat the brown rot in some cases. Its a bummer. I so badly wanted a peach & it was so happy in its location! Any votes? I’m thinking Stewartia in its place!?

Did pull a few weeds today, but have some hip injury issues I’m working on, so am under strict directions to take it easy, so didn’t do much there.

Did cut some tall white garden phlox and purple glads for a dining room table arrangement. Several phlox stalks had fallen over in the rain, so I just had  to cut them to open up the pathway ;) . I adore this phlox & apologize that I don’t know the cultivar. It has the most delicious fragrance. I highly recommend every garden have some & they’re happily divided by their second season. Mine will be followed by Monkshood this fall, which will keep the Anna’s hummingbirds in my garden into early winter…hopefully getting them to stick around until my winterblooming Witch hazels kick in just before the end of December!

Oh one more note. I just adore The Herbal Kitchen Cookbook. There is a recipe for Spicy Lemon Verbena meatballs in it that is to die for — probably literally with all the fat. Still, in this recipe Jerry Traunfeld talks about his difficulties cultivating Lemon Grass in Seattle. I’m giving it a shot this year & am having success. I don’t expect it will winter over, but its a beautiful culinary plant to mix into an herb & vegetable patch. It adds that grassy texture that is often missing in our vegie gardens. If you can get your hands on it, I recommend giving it a shot. (I also adore Lemon Verbena, so don’t forget that one. Its usually an annual in my garden, but its worth replanting year after year!) Jerry, if you’re reading, I was low on Lemon Verbena so added some of my Lemon Grass to the meatball recipe & they were great!

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Why Water?

Tuesday, July 3rd, 2007

Hey Seattlites (and anyone else heading into a dry summer)….

For those of you who don’t realize it, Seattle has a natural drought cycle in the summer, and it seems we’re going to enter it before the 4th of July this year. I have been running my irrigation every few days already. This morning I checked my soil mositure level & realized I needed to run it again. So, just a friendly reminder that if you start watering now (if you haven’t started already), you’ll be able to keep your soil moisture levels up & protect your plant material investments.

Plus, who doesn’t love to get sprayed by a sprinkler on a hot day? Cool off after an  early morning or late evening exercise program by wandering through your garden as your irrigation runs or as you tote a hose or watering can to care for your special plants. Its a great way to chill out after exercising & connect with your plants and garden! Those plants are pumping out oxygen; take it in! 6H2O + 6CO2 + light → C6H12O6 + 6O2

More information on maintaining garden soil moisture levels is available here.

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