perennial for box?

noinwiAugust 5, 2006

Can anyone suggest a flowering perennial that would survive the winter in a shallow planter box(about 6"deep x 30"long)? It gets morning shade and afternoon sun. Am I asking too much for these conditions? Thanks for any help.

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Snomam(Zone 3)

Whenever I leave plants in containers over the winter, I bury them in the garden up to the top of the planter, then cover with about a foot of straw. Sometimes the containers will crack, but the plants survive. You'd be taking a chance to leave it out in the open, because of the freeze/thaw cycle during winter. But a thick layer of straw might work. As far as flowering perennials...there's just so many of them, depending on your favorite color and how tall you like them. Here's a website that has flowering perennials:

    Bookmark   August 7, 2006 at 6:18PM
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Thanks for the link, Kim. I figured it would be difficult. My 2 boxes are wooden(formerly ammo boxes) and they are in the open, but next to the apartment building, on a bed of drain rock. I wouldn't be able to pile anything on them, as that would be 'defacing ' the building. I keep trying different annuals and so far petunias and marigolds do best, but I'm getting tired of paying for plants and I don't have much room to start things inside. The morning shade makes it difficult to plant sun lovers and the afternoon sun fries shade lovers. I tried WSing some annuals this year and it didn't go well(dwarf cosmos which are still quite tall and haven't bloomed yet). I thought if I could find the perfect perennial for this situation, I could still stick in an annual here and there if I felt like it, but have something I could otherwise depend on. Thanks again for the feedback.

    Bookmark   August 7, 2006 at 7:00PM
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milwdave(Zone5 Milwaukee)

try Sempervivums and some dwarf long as the boxes are not held high, but can be covered by the snow in winter they should do fine. But use a VERY well drained soil if you do.


    Bookmark   August 13, 2006 at 10:06PM
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I do like Sedums...and yes, the soil in the boxes drains very well. Thank you for the suggestion.

    Bookmark   August 13, 2006 at 10:36PM
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