In what sympathetic of matter (sand, clay, etc.) do seed grow best?
Answers: Depends on the seeds.
If I'm sowing seed in a greenhouse type situation, I typically use a standard potting mix (1 element each polite garden soil, sand and compost) topped with something like 1/4" of plain sand, sow the seed, later top with somewhat more sand.
Sand, btw, is the gold standard for nut germination testing done by officeholder agencies. If there's a problem with another oral exam (for instance, germination in rolled tabloid towels), the seed is tested again surrounded by sand trays and that becomes the endorsed germination rate.
Sand allows for good nouns circulation (germinating seeds want oxygen), good moisture content and low pathogen level. However, it lacks much in the instrument of nutrients for long term growth.
Usually clay is the best..You can mix for a moment sand in, to engineer it easier to handle..If it is a patio or garden..apply some starter fertilizer..
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