Plants for Roof Gardens

These plants are suited for most climates, but especially for high-altitude, dry climates

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Not all plants thrive on roofs, where conditions can be harsh. Look for varieties suited to your hardiness zone. Choose drought-tolerant plants, but not those with deep root systems. Here are a handful that thrive in most climates, especially high-altitude, dry climates such as Montana.

• Basket of Gold (Alyssum montanum ‘Mountain Gold’)

• Cacti (Escobaria leei ‘Lee’s dwarf snowball’)

• Hens and chicks (Sempervivum spp.)

• Ice plant (Delosperma)

• Native grasses (Buffalo grass, bluestem, blue grama, perennial ryegrass, blue fescue)

• Creeping phlox (Phlox stolonifera)

• Sedum (Sedum spp.): ‘Dragon’s Blood’, ‘Tri-colored’, ‘Golden Carpet’, ‘Angelina’, ‘Stonecrop’)

• Thymes (Thymus vulgaris): ‘Wooly’, ‘Pink Chintz’, ‘Creeping Pink’, ‘Elfin’)

• Snow-in-Summer (Cerastium tomentosum)

Source: Green Roof Plants: A Resource and Planting Guide by Edmund and Lucie Snodgrass (Timber Press, 2006)

3/25/2014 1:07:49 PM

I really like the look of the ice plant on top of a They are colorful beautiful flowers that look amazing in late spring and early summer. They are also low maintenance, just make sure your roof has positive drainage or water shedding capabilities.