Colorful Accents. Limited-Time Offerings. Houseplants for Pickup. Mounted Plants. Plants in Glass. Plant Craft Supply Kits. Plant Accessories. Plant Supplies. Gift Ideas. Yet, these aromatic oils are in essence harmful for orchid roots.
Mulch is sold for 4 main purposes. The first I already mentioned, as it kills young seedlings, meant for weeds. Mulch also raises the temperature of the soil, not allowing the heat to escape. Its purpose was to be used as a top layer, never mixing down in the soil under 4 inches. This is due to the high nitrogen absorption, which would deplete the garden soil of its health. Yet if used as a potting medium, these freshly cut wood chips in the form of mulch will be in contact with the rhizome, crown, and stem of the orchid.
Next to live plant tissue, the mulch interacts with the outer surface plant cells, and nitrogen deficiency can occur in these places of contact. Mulch also traps in humidity, which as a potting media has its advantages. Most orchids benefit from a potting media that absorbs water and humidity and releases it slowly over time.
Mulch tends to not be as fast draining as orchid bark, since there are other components in the mulch. Some mulch can be made from paper mills and lumber shredders. Sawdust is often a common ingredient in mulch and will absorb way too much moisture, forming a thick, glue-like paste. It serves its purpose to reduce evaporation, but this also means it reduces air circulation around the roots.
In this sense, the purpose of the mulch does more harm than good for the orchid. You might be thinking that if the wood chips absorb high quantities of nitrogen, why not just ad a fertilizer that's high in nitrogen, like a ? This is actually recommended on your bag of mulch. Any bag you buy will have the suggestion to use a high Nitrogen for the first few weeks.
The problem with this method is that when used on a vegetable or flower garden, this high nitrogen will degrade the chips faster. The more you water and the more you fertilize, the faster the chips decompose. That is their purpose. So why not use Fir bark, just like the orchid bark has in its composition? Mulch made from fir bark can also include fir, pine, and redwood. This is just a common classification that industries which sell fir bark have come to terms with.
You really have no idea if that tree is in fact a fir tree which is actually excellent for not releasing too many resins or if it is a pine bark, which has a high resin count. The chunks are still large enough to provide all of their structural benefits, but small enough that you can fit more than half a dozen into a jar terrarium. Some plants grow well in a super chunky, well aerated mix mostly epiphytes like Bromeliads and Dischidia.
Or, particularly large tropical plants like Aroids can fare well in chunky orchid mixes too. Often the bark itself is blended with other fibrous materials like coco fibres , seramis a kind of clay and often perlite. This is a terrific article. Thanks so much. No fines, dirt or other shredded bark products, dust and contaminant free i. Used for Disa and Masdevallias orchids. Often used for orchids that have been deflasked.
Used for small to medium-sized cymbidiums, Cattleyas, Vandas and Phalaenopsis, etc. Used for larger Cattleya type orchids and Cymbidium mixes.
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