Answer: I know from experience that teens like to eat so why not start a pizza garden (grow tomatoes, basil, terragon, etc.) or a salsa garden (tomatoes, scallions, cilantro and peppers) or, an artistic garden where the teens arrange rock garden plants in interesting shapes (checkerboard, circles, etc.) Some of the best rock garden plants for your area include Arenaria (Sandwort), Aubrieta (Rock Cress), Cerastium (Snow in Summer), Dianthus (Cheddar Pink), Dianthus (Red Maiden), Gyphsophila Repens (Creeping Baby's Breath), Leontopodium (Edelweiss), Matricaria (Feverfew), Sedum Mixed, Sedum (Dragons Blood), Thymus serpullum (Creeping Thyme), Dahlberg Daisy - Golden Fleece, Tagetes Signata Pumilia (Gem Marigold), or Nierbergia (Purple Robe). Hope this information provides some inspiration.
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