Jacki Kellum Garden January 12, 2025 Note all the green plants on this wintry day–well after the first frost, Frost Dates Are Relative What Is a Frost Date? “A frost date is the average date of the last light freeze in spring or the first light freeze in fall. “The classification of freeze temperatures is based on their effect on plants:…
Tag: What Is A Frost Date?
Flower Seeds that Require Cold Stratification
Milkweed (Asclepias) Lupine (Lupinus) St. John’s Wort (Hypericum perforatum) Prairie Coneflower (Ratibida) Prairie Violet (Viola pedatifida) Pincushion Flower (Scabiosa) Marsh Marigold (Caltha palustris) Perennial Sunflowers (Helianthus) Wild Geranium (Geranium maculatum) Rudbeckia (most varieties) Coneflower (some varieties) Soapwort (Saponaria ocymoides) Primrose (Oenothera speciosa) Larkspur (Delphinium) Shooting Star (Dodecatheon meadia) Heliopsis Lavender/Hyssop (Agastache foeniculum) Catmint (nepeta) Ironweed (Vernonia gigantea) Prairie Violet Image Credit: American Meadows Height 3″ – 6″ Soapwort Image Credit:…