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persian shield (strobilanthes dyerianus) perennial experiences

Posted by purpleinopp 8b AL (My Page) on
Thu, May 19, 11 at 11:36

Depending on the source, I'm right on the line, or a whole zone away from perennial persian shield. Was hoping to hear some success stories from others on the edge of 8/9, if there are any. Asking here instead of AL forum because most of those folks are so much farther north. I'm 15 miles from FL border, right above Crestview.


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RE: persian shield (strobilanthes dyerianus) perennial experience

  • Posted by lac1361 z9a Lake Charles (My Page) on
    Thu, May 19, 11 at 17:06

I've grown Persian Shield for 8 or 10 years and had mixed results. In mild winters here on the Louisiana gulf coast, it doesn't even die back. The last two winters were very cold here and although it came back last summer, it was very weak and never reached it's old vigor. This spring, I pulled all of the dead plants out of the ground and replanted. As a perenial in 9a, it's 50/50 here depending on the severity of the winter.

Steve


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RE: persian shield (strobilanthes dyerianus) perennial experience

I planted the persian shield in perfect conditions in Rockport Tx, Gulf coast, and it died. I figured it was the salt, and never bought it again. I cannot grow certain plants, like coneflowers, or fringe plant, because of the salt and just added this plant to my list. I have no other explaination as to why it died. It is a beautiful plant and I wish I could grow it. Barbra


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RE: persian shield (strobilanthes dyerianus) perennial experience

Heythere Barbra. I looked up Rockport on the map and I think I would be OK dealing with the salt if I lived that close to the gulf. Everyplace has its' limitations and challenges - and benefits. I've not heard of fringe plant before and googled it but got pics of all different plants. Are you referring to lorapetalum? I think there's a couple of those at the bank across the street (but no ocean!) LOL!


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RE: persian shield (strobilanthes dyerianus) perennial experience

I grew this plant south of New Orleans, but it did freeze in cold winters, even in a pretty protected area. You can take cuttings pretty easily and I highly recommend that each year.


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RE: persian shield (strobilanthes dyerianus) perennial experience

Louisianagal, do you mean your plants died completely or just above-ground? I will definitely take cuttings. They can live through winter in water. I also have 3 of these in pots that will come inside. There are 5 of them throughout the yard. Time will tell if any of those are still alive next spring.


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RE: persian shield (strobilanthes dyerianus)

Well now there are many more than 5 throughout the yard, and I've given away some of the cuttings, too. I have high hopes of overwintering for 2 in particular, in corners up against the house.


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RE: persian shield (strobilanthes dyerianus) perennial experience

I am happy to report that all of the PS's I had hoped would survive winter are still alive and showing signs of growth. They are near the house on 3 sides, and one in the middle of the yard, and one in an old wash tub under an oak tree. Not easy to see them yet, but here's a couple pics:


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RE: Persian Shield (strobilanthes dyerianus) perennial experience

I live in Jacksonville, Florida and my home is five miles from the ocean. We had two hard freezes this past winter with a low for season of 27.6 F. My Persian shield froze back to the ground but made a happy appearance about two weeks ago.

Here is some interesting information that I found on another website:

"#1 complaint from customers (I used to be in the nursery business ): 'It died or looked so bad over the winter that I threw it out'. Actually, it goes into a semi-dormant state during which many of the leaves drop. This is also when most of the blooms appear. Much like Coleus, the blooms cause new leaves to be very small and undeveloped. For many years I cut them off thinking the same rules as for Coleus applied here. They do not. If you leave the blooms and mini-leaves on, you will have a thicker and more fully leafed plant in spring. Endure its straggly winter appearance and it will reward you in the spring and summer. A 2 or 3 year old plant is much more impressive than the growth attainable in one year when grown as an annual."


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RE: persian shield (strobilanthes dyerianus) perennial experience

lac, I'm starting to agree with you. One of the plants that showed back up in spring has since died. One is doing nothing and still has just those first few ugly leaves. One is finally starting to grow pretty purple leaves, and a couple are just really slow. Not at all keeping pace with the cuttings I took last fall and have replanted outside. There's still plenty of time for the ground plants to catch up, but they might not...

love-the-yard, I've kept a pot or two inside most winters for the past decade or so and totally agree (acknowledging my very limited outside experience this far.) The saved potted plant is the best way to go for preserving a large specimen. The cuttings I keep in water and put out each spring are also fantastic and well worth the minor effort!


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RE: persian shield (strobilanthes dyerianus) perennial experience

For the record, two of the plants that survived winter have continued to grow this year. The others that were technically still alive just didn't grow. And, as stated above, those planted in spring as cuttings are bigger overall. Knowing that last winter was especially mild and seeing these results, I will be doing my usual cuttings in bottles of water this year, and bringing in one potted plant. So close, but yet so far...


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RE: persian shield (strobilanthes dyerianus) perennial experience

I have found that I can now grow the persian shield and other plants that I use to not be able to grow. I just add gypsym to the top of the soil and water in. I also have been adding something called turface to the soil to help retain moisture. I have plants growing in my yard that I have never been able to grow before. This summer I added the turface to my desert roses and plumeria, brugmansia, icohroma, and mexican flame vine. Gosh the diffrence was amazing. I got the turface at the John Deere Landscape center, it is used on base ball fields. Barbra


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RE: persian shield (strobilanthes dyerianus) perennial experience

I totally agree that drainage is a key factor in zone pushing. I prefer to not put any non-organic material in our soil, but no matter the method, the drainage is so important. Another example would be overwintering dormant tropical bulbs in a pot. If they get soggy, they rot. If they stay dry, they survive.

So glad to hear from you again and that you've found a way that works for you! This year I have one in kind of a high spot that I have "high hopes" for since that should allow the drainage to be optimal. Maybe the others that were come-backs will be more established and powerful next year. It's fun to imagine the possibilities. Do you still think your yard is affected by salt at this point? I don't even know if this plant is sensitive to salt, but curious since you mentioned it before.

Do you have trees and leaves in your yard? At this point, adding them to your beds could help to keep the drainage improvement going, and add tilth and nutrients to the soil. Or piling them up to compost and spread later. We do some of both. Are your beds are mostly newly reclaimed from grass? That's what I've got, in different stages since I keep removing more grass slowly each year. I can't wait to dig in there in the spring to see the differences.


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RE: persian shield (strobilanthes dyerianus) perennial experience

Salty soil is an issue in my yard. I found that just sprinkling gypsum on top of the soil, will let me plant plants that I was not able to before. I have to keep doing this every 3 months. The gypsum doesn't change the ph level of the soil. I do not have leaves in my yard. I have hugh live oaks, no leaves but tons of acorns. Since my yard is 100% sugar sand, I don't have a drainage problem. The turface helps retain moisture, my plants did so much better this year. I was able to grow red passion vine, and mexican flame vines, something I was never able to do before. Barbra


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RE: persian shield (strobilanthes dyerianus) perennial experience

Someday I hope to have to deal with sea-salty soil, and might arrive at the same conclusion. Glad you've found something that's working for you!

"Since my yard is 100% sugar sand, I don't have a drainage problem." Wow! No doubt. I have no experience gardening like that, and imagine the leaves wouldn't yield the same results without the soil microbes and worms to "digest" them. You must be really close to the shore. How cool is that?! From what little I do know from the universal instructions to not walk on sand dunes or molest the beach vegetation, anything you can do to get roots in your yard is a great thing in regard to avoiding erosion.

Live oaks are one of the most beautiful things about the south, IMO. I'm sure they were an attraction for you to that property. As a transplanted Yankee, one of the grand old giants is a powerful thing to see. Best wishes for continued success with your gardening!


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RE: persian shield (strobilanthes dyerianus) perennial experience

The other plants have all been frost-killed above the ground, but this one is still going, and covered with flowers. They're not much, but I've never seen this in person before. Pretty exciting on a January afternoon!


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