I use it in my orchids. And bonsai. But it has been pricey to source, so it is mostly for orchid use.
Orchiata is the brand name of the radiata pine bark I do use. It is actually imported from New Zealand. Hence, because it is imported it is not cheap. It beaks down much more slowly than douglas fir bark (generic fir bark). For orchids fir bark begins turning to mulch by year 3. Radiata pine bark lasts at least 5 or 6 years before beginning to break down. It holds less water than fir bark. It is a good particle to add to a mix if you want a long lasting particle.
The "acidifying effect" of decomposing bark kicks in rapidly with fir bark, with radiata bark, this begins a year or two later. Radiata bark that is more than 4 years old has the same acidifying effect in media as fir bark that is only 2 years old.
So all in all, good stuff, especially for a tree you do not want to repot very often. FOr a mix that lasts 5 to 10 years between repotting, I would definitely use radiata pine bark.
I pick mine up from Orchids by Hausermann, but they are only a one hour drive from my home. They do mail order, but the mail order expense might be more than you want. If you visit CHicago area, you can stock up on your return trip. Call Hausermann's if you don't see it on the website. Tell them Leo sent you. It won't get you a discount, but it will "break the ice.".
First Ray's Orchid Supplies - Ray's business is mail order orientated. Again shipping will be the big expense. He always has Radiata in stock, though his package sizes are geared toward the smaller hobby grower.
Using Science & Logic to Advance Orchid Growing
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