Perennial-- Penstemon Strawberries & Cream. Oblivious of drought or rain, resists slugs & other pests, positively thrives in most soil conditions in containers or borders, sun or part shade and propagates painlessly! Attracts Bees And Butterflies, Drought Tolerant, Flowers For Cutting/Drying, Pest Resistant, Suitable for Containers. Blooms June to November often longer. Unfussy on soil conditions as long as it well-drained. Full sun or partial shade.
great passive solar design- I would plant row of deciduous trees in front of glass so that in the winter that could act as a giant trombe wall but be shaded to keep it cool in the summer. Trees that max out at 2 stories would allow south face 3rd level roof to accommodate panels!