Question
We have two large decks: one off the second floor dining room, with a stairway to a second deck surrounding an above-ground pool. The supports to the upper deck and stairwell a very unattractive and we would like to disguise/dress up the walkway that goes under the upper deck.  I have a few hostas there now, but under the stairway we were thinking of vines or a shrub. This would be in mostly shade, but would get some morning sun.  What might grow well there?

Answer
It depends on what zone you are in.  First thing, though, is check out your USDA zone at http://www.usna.usda.gov/Hardzone/ushzmap.html

Second, for either a shady condition or partial shade, here are a few plants that may fit the bill.  Just paste the latin names into a google search for an image of the plant.

Full shade:

Ficus pumila ?Creeping Fig - perennial vine ?zones 8 to 10
Hydrangea anomala subsp. petiolaris  - Climbing Hydrangea ?zones 4 to  7
Parthenocissus quinquefolia  - Virginia Creeper ?a naturalizing ground cover ?zones 3 to 9
Parthenocissus tricuspidata - Boston Ivy ?zones 4-8

Partial shade:

Antigonon leptopus -  Coral Vine ?naturalizing mound ?zones 8 to 11
Campsis radicans - Trumpet Creeper Vine ?zones 4 to 9
Cissus rhombifolia ?Grape Ivy ?zones 9 to 11
Clematis virginiana ?Virginsbower zones 4 to 8
Clerodendrum thomsoniae - Bleeding Heart, Glorybower  - zones 9 to 11
Fatshedera lizei ?Bush ivy ?zones 7 to 11
Gelsemium sempervirens - Carolina Yellow Jessamine  -zones 7 to 11
Passiflora edulis - Passion Fruit ?zone 10
Petrea volubilis -  Queen's Wreath - zones 9 to 11
Pyrostegia venusta - Flame Vine ?naturalizing mound - zones 9 to 11
Senecio confusus - Mexican Flame Vine ?zones 9 to 11
Syngonium podophyllum ?Nephthytis ?more of a ground cover ?zones 9 to 11
Thunbergia alata - Black-eyed Susan Vine ?zones 8 to 11
Trachelospermum jasminoides ?Jasmine ?zones 8 to 11
Wisteria floribunda ?Japanese Wisteria - ?zones 4 to 9
Wisteria sinensis ?Wisteria ?zones 5 to 9

hope it helps.