scarification & stratification

Often, I can’t find any info to tell me if the native milkweed seeds I buy from quality sources need to be stratified or scarified.
Not to mention keeping those 2 terms straight.

For Asclepias erosa seeds, from plants, do you have a suggestion to either stratify or scarify?

Thank you

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1 Comment To "scarification & stratification"

#1 Comment By Downtoearthdigs On 12/06/2018 @ 7:43 am

Stratification would be exposing it to a certain temperature range (usually cold). Scarification would be nicking the seed coat. Both are methods for overcoming seed dormancy.

Now… There seems to a lot of argument on whether this particular species needs a cold period to germinate. They do not need a scarification. The best thing I could suggest would be to put some in moist soil in the refrigerator for a few weeks, and some planted directly to see which has a better germination rate. There may even be no difference in germination rate.

This article will give you a little more information about the species as a whole: https://www.gardeningknowhow.com/ornamental/flowers/milkweed/milkweed-plant-varieties.htm ^[1]

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[1] https://www.gardeningknowhow.com/ornamental/flowers/milkweed/milkweed-plant-varieties.htm: https://www.gardeningknowhow.com/ornamental/flowers/milkweed/milkweed-plant-varieties.htm

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