Motz, Vicki Abrams, et al. “The effectiveness of jewelweed, Impatiens capensis, the related cultivar I. balsamina and the component, lawsone in preventing post poison ivy exposure contact dermatitis.” Journal of ethnopharmacology 143.1 (2012): 314-318.
When do the Witch hazel seeds explode out of their capsules? Steve and Bill weren’t sure on the timing, but Steve was correct! Witch hazel (Hamamelis virginiana) is a forest understory tree that blooms in the fall. The seeds take a year to develop and are forcibly expelled (because of dehiscence) from the seed capsules the following fall or winter. Check out our episode on witch hazel!
Martin, L.J., Agrawal, A.A. and Kraft, C.E., 2015. Historically browsed jewelweed populations exhibit greater tolerance to deer herbivory than historically protected populations. Journal of Ecology, 103(1), pp.243-249.
Motz, Vicki A., et al. “Efficacy of the saponin component of Impatiens capensis Meerb. in preventing urushiol-induced contact dermatitis.” Journal of ethnopharmacology 162 (2015): 163-167.
Jewelweed. Spotted touch-me-not. Orange Balsam It’s a plant known by many names, and, even if you don’t recognize any of them, you’ve probably popped one of its exploding seed pods. A favorite of hummingbirds and nature-lovers young and old, it’s a species with many stories to share. Listen in as the guys dive deep into the jewelweed patch, eating some seeds, trying to find the source of the “jewel” in jewelweed’s name, and getting to the bottom of the age-old claim that jewelweed is a cure for poison ivy.
Check out the Field Guides merch at our Teespring store. It’s really a great deal: you get to pay us to turn your body into a billboard for the podcast!
Long, David, Noel H. Ballentine, and James G. Marks Jr. “Treatment of poison ivy/oak allergic contact dermatitis with an extract of jewelweed.” Dermatitis 8.3 (1997): 150-153.
When searching, you must determine the availability of an equivalent variety — seeds or planting stock with your organic system’s required growing habits, disease and insect resistance, days to maturity, etc.
What if I can’t find my seed or planting stock certified organic?
Download the above and submit it to your client service team.
Forms & Documents
When certified organic planting stock is not commercially available, you may be able to use non-organic, untreated (e.g., no application of a prohibited substance such as a fungicide) planting stock to produce an organic crop. Substances used by a non-organic planting stock supplier before the harvest, sale and use in organic production are not considered “treatment.”
Each winter, I start thinking about what seeds I may want to plant in my garden for spring and summer. Before I get too far in my planning, I first rifle through the half-empty packets of seeds left over from the prior year (and in some cases, several years) and wonder if any of them are still viable. I usually shrug, toss the seeds in the ground, and wait to see what happens. If the seeds don’t germinate, then I buy some new ones. Obviously, this haphazard approach to planting is far from ideal because it can put me several weeks behind my intended planting schedule by the time I notice that the seeds haven’t germinated.
But this year, I decided to do a little research about how long seeds last. I was a little surprised to learn that seed viability varies considerably with the type of plant. Seed viability also will vary depending on whether the seeds are have been pretreated or pelletized. I was less surprised to learn that viability varies even under optimal storage conditions.
Seeds in good condition and stored properly will last at least one year and, depending on the plant, may last two to five years. I found a quite a few tables on the internet indicating the average shelf life of vegetable and flower seeds that are properly stored. Those sources are listed below. Here is a shorter version for a variety of vegetable seeds: