The do-it-yourself kits can provide an approximate pH. None will tell you if a soil contaminant is present.
Before you send a sample to a professional soil lab, let's look at what occurred so far. More often than not, the problem is related to environmental factors, such as the following:
- soil water (too much or not enough);
- the planting site (drainage)
- sun vs shade
- depth the seed was planted
- soil temperature to low or too high
During recent years,
How was the soil prepared before planting?
Did you mix in any manure? If yes, fresh or aged? And how much?
During recent years, gardeners who used manures, have sometimes encountered stunting and other growth problems due to herbicide carryover.
The planting chart on page 7 and athe troubleshooting info on page 9 may resolve your issues.
If you have images of the failed seedlings, please send them when you reply to this email.
If you have additional questions, please ask.