osuengineerMay 6, 2014

This has been the best year for my asparagus yet. When should I stop harvesting it and let it go to a fern? Thanks.

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It depends on how old your crowns are, but the rule of thumb (finger) is that when the spears that emerge are smaller than your index finger you should stop. My 25 year old bed wasn't weeded of seedling asparagus as well as it should have been over the years and I pick a lot of spears half that size. I always stop about the first of June even though many of the emerging spears are bigger than my index finger.

    Bookmark   May 6, 2014 at 10:16PM
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Whoops! I told you wrong. As I was picking my asparagus this morning I realized that the rule is "Pick any spear as big as or bigger than a #2 pencil." I pick spears that are very small for the reason I stated. Many spears in my bed ARE bigger than my index finger, but that's not the rule.

    Bookmark   May 7, 2014 at 8:41AM
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Lisa_H OK(7)

I need to grow this. Asparagus and rhubarb always remind me of home. I miss them.

    Bookmark   May 7, 2014 at 10:41AM
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mksmth zone 6b Tulsa Oklahoma(6b)

This seems opposite of what you would expect to be asked but what is the best way to rid the garden of asparagus. Reason I ask is my aunt had planted some in my new to me garden and its coming up in places Id rather it not be. If it continue to harvest the areas where I dont want it and do not let it fern will it eventually die off?
It does taste better than any store bought, its just in the wrong spot.


    Bookmark   May 8, 2014 at 5:11PM
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Mike, it all depends on the age of the crowns how quickly you can kill it by picking continuosly. If they are small crowns, it might be faster to just dig it up--small meaning no more than 2-3 years old. Older than that you can eventually kill it by never letting it fern. May take more than one year.

    Bookmark   May 8, 2014 at 5:42PM
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mksmth zone 6b Tulsa Oklahoma(6b)

Thanks mulberry. I believe this is season 4. Thanks for the tips.

    Bookmark   May 8, 2014 at 8:04PM
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Mike, I allowed people to come dig some crowns that were almost 20 years old. The ones who took me seriously about watering over the summer had theirs live. 4 year old crowns should be diggable. Maybe you can give them away for the digging.

    Bookmark   May 13, 2014 at 9:11AM
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