Scutellaria lateriflora
herbMad-dog skullcap (Scutellaria lateriflora) is a slender North American perennial of moist meadows, stream banks, and wet woods, named for the small helmet- or cap-shaped blue flowers that line one side of its branching stems. Growing 1 to 3 ft tall, it is a refined, somewhat understated mint-family plant, harvested as the leafy flowering tops. It is happiest in cool, damp, partly shaded ground that mimics its native streamside habitat, and it draws bees to its summer flowers. Some patience is needed to start it, but an established stand returns reliably each year.
Sun
partial shade
Water
Every 4 days
Harvest
~70 days
Difficulty
medium
Lifecycle
perennial
Comes back every year
Spacing
8-12 in. apart
Planting Depth
Surface sow; cold-stratify first
Soil pH
6.0-7.5
Soil Type
Rich, moist, well-draining
Hardiness Zones
Zones 4 – 8
When to Fertilize
Light feed in spring
Fertilizer
Compost; moderate needs
Skullcap needs rich, consistently moist, well-drained soil in partial shade - dappled woodland light or afternoon shade is ideal, and it dislikes hot, dry, full sun. Its seed is slow and benefits from about a week of cold, moist stratification in the refrigerator before sowing; start it indoors 8 weeks before the last frost and surface-sow, as it needs light. Transplant out after frost, spacing 8 to 12 in. apart, and keep the soil evenly moist all season. Mulch to conserve moisture and keep the roots cool. Divide established clumps in spring to propagate.
Start seeds indoors
Feb 18
Transplant outdoors
Apr 29
Projected first harvest
Jul 8
Good neighbors that attract beneficial insects or deter pests
Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide
Rinse colonies from the soft growth; ladybugs and lacewings help outdoors
A risk in the damp, shaded bed - use grit, traps, or nightly hand-picking
Ensure airflow and avoid overhead watering in humid, crowded conditions
Harvest the leafy flowering tops in summer when the plant is in full bloom, cutting the upper third of the stems and drying them quickly in a shaded, airy place to preserve color and aroma. Cutting in bloom often prompts a lighter second flush. The herb is dried for tea and tincture; handle it gently and dry it thoroughly, as the fine material can mold if packed damp.
Skullcap is grown strictly as a traditional herbal-tea and tincture plant, not as a food - the dried leafy flowering tops are steeped into a mild tea. In the garden it earns its place as a graceful native perennial that feeds bees and thrives in the damp, shady spots where many herbs will not.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.