Is anyone successfully growing asparagus in zone 9? If so, in Florida?
I've grown asparagus in colder areas, and always thought that it needs to go dormant in winter. We were only able to grow it in Phoenix by growing a special warm climate variety developed by researchers at the University of California, and even then, we had to trick into going dormant by withholding water in the fall. we get too much rain in the fall here in central Florida for that trick to work, so I've been thinking that we can't grow asparagus here. However, Eric Toensmeier and his group list it as a choice for zone 9.
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Personally I would give it a try. Maybe put it in a spot that's likely to be a little cooler. I think you might have problems with soil pH, as asparagus prefers an alkaline soil to neutral soil. Not sure it will do ok in highly acid soil. But in my experience it is a tough and forgiving plant, one of the few I have not killed!
To trick it into thinking it is dormant, avoid irrigating and cut it back severely. Mine will sometimes go dormant in summer then send up new shoots in the cooler moister Fall.
The rainy season ends officially Nov. 1 but it usually is slowing down gradually through October as it gradually cools down, too. We have heard about someone growing Asparagus just a little North of us maybe around 10 miles up 98 and it can actually be more cold days here where we are than where they are growing it so we were encouraged by this and we got some from Lowes here locally--just don't know if we got the right variety, haven't planted it yet. But will try to find out in case that's important. Not sure how many chilling hours it needs or how much dormancy....hope to hear more answers, too!
I have it growing in 9B. I grew it from seed, have no idea what kind it is (I had one option, "asparagus").
In fact, I have it growing in a container (a large box, like a deep kiddie pool. My dirt is very rocky and full of clay and I decided to make my life easier). It is in a corner of my yard that gets mostly shade.
I have seen videos of people growing asparagus in urban settings in southeast Asia (maybe Singapore?).
I do get occasional frosts but I don't have a set hot and cold season the way North America does-- I will have a cold snap for a few days, then back to daily variations between 40F and 70F, for example. The asparagus never goes dormant, and I'm never really sure what I should be doing with it. It's only about 4 years old and I've divided it twice, but yields are still small.
But I would imagine if you get a firm cold season you would probably be okay.
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