PlantFiles: Indigo Woodland Sage Salvia forsskaolii
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Hardiness: USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F)
Other details: Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; stratify if sowing indoors Direct sow as soon as the ground can be worked From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds
For those of us who defy the absence of sufficient sun in trying to grow an old fashioned cottage flower garden, this plant is a welcome surprise. Salvia forsskaolii sends up thin wands of delicate violet blue, and its leaves have the effect of woolly hosta plants. In our hot, humid Maryland summers, it dies back after flowering and can make a horrid, black ratty mess; however, fresh new leaves soon appear and all is forgiven. It's great for late summer flowers.
On Oct 23, 2002, Weezingreens from Seward, AK (Zone 3b) wrote:
S. forsskaolii is clump-forming in habit with large soft-bristled, lance-like basal leaves of medium green. Long, sturdy spikes of violet-blue tubular flowers, whose lower lips are streaked with white & yellow, rise well-above the plant. This plant works well mid-border in well-drained soil. It is a native of Bulgaria.
This plant has been said to grow in the following regions:
, (2 reports) Lincoln, Clayton, California Fairfield, California Richmond, California San Francisco, California Studio City, California Pike Creek, Delaware Ellicott City, Maryland Elizabeth City, North Carolina Bolindale, Ohio Akron, Pennsylvania Murfreesboro, Tennessee Kalama, Washington