PlantFun
Plant Needs
Sunlight
Thrives in full sun to partial shade; tolerates dry, exposed growing conditions
Watering
Allow soil to dry completely between waterings; drought-tolerant once established
Temperature
Hardy to mild frosts; performs best in cool to temperate summer temperatures
Characteristics
- Leaf: Lanceolate, hairy gray-green foliage arranged alternately along stems
- Flower: Tubular blue-purple blooms clustered in leaf axils with fuzzy calyxes
- Stem: Erect, branched stems covered in fine, bristly hairs
Care Guide
Watering
Water moderately during active growth; avoid overwatering to prevent root rot
Fertilization
Diluted balanced feed once every 2 weeks. Use only diluted, low-strength feed to avoid disrupting natural growth habits
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface to boost calcium content without overfertilizingPruning
- Deadhead spent blooms to extend the flowering period
- Remove yellowing foliage to maintain a neat, tidy appearance
- Cut back entire plant after seed set to encourage self-seeding for next year
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: No listed toxicity for cats
Humans: No documented toxic effects for humans
Garden Uses & Culture
Culture: N/A
Usage: Wildflower garden ornamental; supports pollinators including bees and butterflies
