Over the last two decades, green roofs and green walls have emerged as popular ways to garden and help the environment too.
We have assembled a list of many great plants for green roofs from our massive on-line plant catalog and have included plants that are widely used. A good green roof will have at least 10 different plant species in order to provide visual interest, attract the widest variety of wildlife, and prevent the disease problems of monoculture (if one species falters, there are several others to replace it). Due to climatic differences, a green roof in Seattle will have different plants than a green roof in Atlanta.
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Baptisia 'Purple Reign'
Item #: 17166
Zones: 4a to 9b, at least
Dormancy: Winter
Height: 48" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Baptisia 'Purplicious'
Item #: 14275
Zones: 4a to 9b, at least
Dormancy: Winter
Height: 48" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Baptisia 'White Gold'
Item #: 11852
Zones: 4a to 9b
Dormancy: Winter
Height: 36" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $24.00Regular priceUnit price per -
Baptisia 'Yellow Towers'
Item #: 3954
Zones: 4a to 9b, at least
Dormancy: Winter
Height: 52" tall
Culture: Sun
Origin: United States Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $25.00Regular priceUnit price per -
Bigelowia nuttallii
Item #: 11079
Zones: 5a to 9b, at least
Dormancy: Winter
Height: 8" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price per -
Calamintha nepeta var. nepeta
Item #: 3501
Zones: 5a to 8a, at least
Dormancy: Winter
Height: 20" tall
Culture: Sun
Origin: Southern Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Callirhoe involucrata
Item #: 1839
Zones: 4a to 9b
Dormancy: Winter
Height: 6" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Callirhoe involucrata var. tenuissima
Item #: 1995
Zones: 4a to 9b
Dormancy: Winter
Height: 6" tall
Culture: Sun to Part Sun
Origin: Mexico
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Sold out
Calylophus berlandieri 'Gold Foil'
Item #: 17463
Zones: 7a to 9b, at least
Dormancy: Evergreen
Height: 12" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $23.00Regular priceUnit price perNext crop available: 04/19/2024Sold out -
Campanula poscharskyana 'Camgood'
Item #: 8037
Zones: 4a to 7b
Dormancy: Evergreen
Height: 8" tall
Culture: Part Sun to Light Shade
Origin: Balkans
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Cardamine quinquefolia
Item #: 10148
Zones: 6a to 8b, guessing
Dormancy: Summer, Fall
Height: 6" tall
Culture: Part Sun to Light Shade
Origin: Asia Minor, Bulgaria, Caucasus Mountains, Iran, Southern Europe, Turkey
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Carex appalachica
Item #: 5793
Zones: 4a to 7b, at least
Dormancy: Winter
Height: 6" tall
Culture: Light Shade to Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Carex bromoides
Item #: 12439
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 6" tall
Culture: Sun to Shade
Origin: Canada, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Carex conica 'Hime'
Item #: 95
Zones: 5a to 9b
Dormancy: Evergreen
Height: 10" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Carex divulsa
Item #: 8932
Zones: 4a to 10b
Dormancy: Evergreen
Height: 15" tall
Culture: Part Sun to Light Shade
Origin: Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Carex eburnea
Item #: 1602
Zones: 2a to 8b, possibly warmer
Dormancy: Winter
Height: 6" tall
Culture: Sun to Shade
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Carex 'Feather Falls' PP 26,199
Item #: 16730
Zones: 6a to 9b
Dormancy: Evergreen
Height: 24" tall
Culture: Part Sun to Light Shade
Origin: Hybrid
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Carex flacca 'Mini'
Item #: 12441
Zones: 4a to 8b
Dormancy: Evergreen
Height: 8" tall
Culture: Sun to Part Sun
Origin: Africa, Mediterranean Europe, Southern Europe
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Carex haydenii
Item #: 15142
Zones: 4a to 8b, at least
Dormancy: Winter
Height: 36" tall
Culture: Sun to Shade
Origin: Canada, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Carex howei 'Bonnie and Clyde'
Item #: 8727
Zones: 5a to 9b, guessing
Dormancy: Winter
Height: 15" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Sold out
Carex howei 'Willow the Wisp'
Item #: 17608
Zones: 5a to 9b, guessing
Dormancy: Evergreen
Height: 18" tall
Culture: Sun to Part Sun
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price perNext crop available: 05/17/2024Sold out -
Carex lanceolata 'Silk Tassel'
Item #: 1197
Zones: 5a to 9b
Dormancy: Evergreen
Height: 10" tall
Culture: Part Sun to Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per -
Carex laxiculmis 'Hobb'
Item #: 8383
Zones: 4b to 8b, at least
Dormancy: Evergreen
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: Canada, United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $21.00Regular priceUnit price per -
Carex oshimensis 'Everillo' PP 21,002
Item #: 9802
Zones: 5a to 9b
Dormancy: Evergreen
Height: 12" tall
Culture: Part Sun to Light Shade
Origin: Japan
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
Regular price $22.00Regular priceUnit price per
More Information About Green Roofs
What do you do when you run out of room in your garden for new plants? Look up and you'll see the answer. Over the last two decades, green roofs and green walls have emerged as popular ways to garden and help the environment too.
What is the purpose of a green roof?
Other than aesthetics (plants for green roofs look great!) green roofs help the environment and reduce electricity consumption. Much like a shade tree, a green roof prevents sunlight from warming buildings during summer. Plants for green roofs also transpire water which provides evaporative cooling during summer. Green roof plants reduce winter heating costs because of their insulating effect. Plants for green roofs filter air pollutants and reduce stormwater runoff, keeping the local air and water clean.
What are the best green roof plants?
Any drought-tolerant, heat-tolerant, wind-tolerant, low-maintenance, sun-loving plant with a shallow root system is a good candidate for a green roof garden. Nationwide, the most widely used plants for green roofs include Sedum, Carex, Sempervivum, Opuntia cactus, Aster, Oregano, Dianthus, Rudbeckia, to name just a few.
Our list of plants for green roofs includes both extensive and semi-intensive green roof species for a variety of environments nationwide. Not every plant on this list will work well on every green roof. Green roofs are a fairly new field and we are always discovering new plants that perform well, so check back often for periodic updates.