Hoary skullcap (Scutellaria incana)

Hoary skullcap

Hoary skullcap (Scutellaria incana) is an indigenous species of mint in the central and eastern parts of the United States. 'Hoary' means 'having white hair,' and the stems of this plant do indeed live up to their moniker. Wildflowers of this type were named 'skullcaps' because their shape is reminiscent of a helmet.

Scientific classification

Species

Hoary skullcap (Scutellaria incana)

Mints plantains olives and allies

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Perennial

Lifespan

Herb

Plant Type

Summer, Fall

Bloom Time

30 cm to 91 cm

Plant Height

3.5 m to 5 m

Spread

Deciduous

Leaf type

5 - 35 ℃

Ideal Temperature

Summer

Growth Season

Images of Hoary skullcap

Quickly Identify Hoary skullcap

Square stems with fine white hairs distinguish hoary skullcap within the Lamiaceae family.

Distinctive purplish-blue flowers in loose racemes bloom from July to August.

Fruit enclosed in a 2-parted capsule with small nutlets, maturing from August to October.

Ovate leaves up to 3 inches long with crenate margins and whitish hairs underneath.

Moderately thick square stem, about 0.25 inches in diameter, branched at intervals.

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Care Guide for Hoary skullcap

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Hoary skullcap prefers consistent moisture and thrives with weekly watering. While it can endure brief dry spells, maintaining moderate soil moisture is crucial. Typically grown outdoors, hoary skullcap benefits from mulching to retain moisture, especially during its active growing season when its water demand increases.

Fertilize: For hoary skullcap, use balanced fertilizers during growth and switch to high-phosphorus types before flowering. Apply monthly in spring/summer, then bimonthly in fall/winter. Water post-application to prevent root burn and ensure optimal health and flowering for hoary skullcap throughout its growth stages.

Pruning: This perennial herbaceous plant, hoary skullcap, showcases striking blue flowers on upright stems. Prune in early to late spring to promote dense growth and more blooms, while avoiding heavy pruning to prevent stress. Regular maintenance enhances health and aesthetics in the garden.

Propagation: Hoary skullcap propagation through sowing involves using fresh seeds sown shallowly in well-drained soil. Maintain consistent moisture and good aeration for root development. Gradually acclimatize hoary skullcap to outdoor conditions to promote robust growth after germination.

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