Recent content by Brent

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    Does Sub-15 Degrees at the Roots Kill Trees?

    I have been growing bonsai and nursery plants for over 40 years now. And being of a curious nature and having my income dependent on such things, I have learned a thing or two. If you look at my Availability List, you can see the species and cultivars that I grow, and living where I do, it has...
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    Prunus Serrulata?

    We will have Prunus serrulata 'Beni Hoshi' cuttings late next spring. Brent EvergreenGardenworks.com
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    Black Temporary Nursery Pots - Insulate or Lost Cause

    Here's great article by Andy Walsh: https://www.evergreengardenworks.com/rootheat.htm I just double pot everything that gets direct sunlight. Put one gallon potted tree inside a 2 gallon empty pot for example. It shades the inside pot and creates an insulating air layer. It's cheap and very...
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    Thunbergii vs. Thunbergiana?

    To confuse or clarify the situation a bit more, some seed strains are very pure, such as mikawa seeds coming from an isolated island. If this is true and the characteristics of all the seedlings are nearly identical, the seedling strain may be recognized and designated as var. Mikawa in fact is...
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    Redwood Empire Bonsai Society Annual Show

    I'll be the only guy there Sat in denim bib overalls. Brent Evergreengardenworks.com
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    Hawthorn cuttings

    'Paul's Scarlet' is not impossible to root from stem cuttings, but almost. I started experimenting with semi hardwood cuttings in June about 35 years ago. Hundreds of them, none rooted, but as pointed out, they callus nicely. Not willing to give up, I kept them under moist conditons through the...
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    Maples for orange spring color

    Try 'Katsura'. Nice orange and red tones to the new foliage, turns green in summer. It does burn in direct hot sun here, but we have very hot dry summer weather, maybe similar to yours if you are inland. 'Katsura' is a vigorous, but semi dwarf tree. We have cutting grown ones, they are great...
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    Which Oak Bonsai

    Leo Sorry, I got Peter confused with another Oregon customer who lives in zone 8a, but I did know he had an overwintering setup, since we had discussed it. Brent EvergreenGardenworks.com
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    Which Oak Bonsai

    Leo I have grown all the oaks I have mentioned above, including Cork Oak, outside without protection for almost 30 years, but 15F is the limit. Go under fifteen and the roots are toast on Cork Oak. This is from personal experience. I lost a whole crop about four years ago when it dropped just...
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    Which Oak Bonsai

    Peter They are all around you. To start with, Oregon white oak, Quercus garryana, second cousin to California's Valley Oak, Q. lobata, are terrific for bonsai, leaves reduce, vigorous growth, yellow fall color. They have typical lobed oak shaped leaves. If you want to go dwarf, there is Q...
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    Differences Between Japanese and European Beech?

    Hmm. I don't see it. Only Fagus sylvatica is listed, European beech. We haven't had any for several years and don't expect we will get any. Brent EvergreenGardenworks.com
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    Differences Between Japanese and European Beech?

    Very little difference. Leaves of Fagus crenata (Japanese) are a bit more rounded and the edges are more crenulated (thus F. crenata). Leaves are about the same size, both will reduce, so that's really not an important factor. JB is more susceptible to late spring freezes and is probably less...
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    Brown itoigawa?

    It's perfectly normal. All my 'Itoigawa' are deep bronze/brown every winter. The inner foliage is usually still green in places. I have no explanation for that, but it is normal too. These junipers, which I believe came from our nursery have been down to 22F. I usually write on the box that the...
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    Anybody know how Brent Walston is doing?

    Folks I'm alive and well, doing pretty good for 72. It seems like there is never enough time to post new material. I have been doing pretty good at keeping the site catalog updated, and the new 2019 version will be out in 2 weeks. Some new stuff, particularly cutting grown Japanese maples which...
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    Evergreen Gardenworks

    Folks We are ok. Cal Fire got a handle on the River Fire southern end yesterday afternoon. The evacuation was lifted last night. We are out of danger. It stopped at the point the map above shows, a couple of miles from us. We were right in the path until the wind shifted. Thanks for everyone's...
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