We choose the Dahlia varieties that we grow very carefully. Time has taught us that all Dahlia cultivars do not share the same cold hardiness. What we’ve whittled down is a list of Dahlias that have never frozen away for us. This marvelous selection boasts large single firey orange flowers on tall waving stems. The intensity of the flower color is shocking and it make a great denouement to summer blooming well into autumn. To 5′ tall in the ground this robust perennial requires some protection as it first emerges to deter slugs/snails. Once its up and growing fast this is less of an issue. Full sun and rich, well drained soil with regular summer irrigation. Excellent and lurid cut flower. Excellent hardiness to cold- it is not necessary to dig and store the tuber so long as the soil is well drained. Mulch in autumn post first frost adds insurance. Moderately deer resistant.
Dahlia ‘Forncett’s Furnace’
Family: Asteraceae Genus: Dahlia
Plant type: Herbaceous perennial
Biomes/Growing conditions: Deer Resistance, Hot Aspects, Oregon Coast
Sun exposure: Full Sun
USDA Hardiness zone: Zn8a 15º to 10ºF
Foliage color: Dark Green
Foliage season: Winter Deciduous