Scutellaria Plant Growing & Care Guide for Gardeners

Article by Dean Ravenscroft, Ph.D. - Updated 27th Oct 2023

In this Gardener's HQ guide, we'll explore cultivating Scutellaria plants in your garden, indoor spaces, and other settings.

Skullcap, and Helmet Flower: Cultivation & Garden Use

Scutellaria is a genus of hardy perennial plants that range in height from 10 to 90 cm (4 inches to three feet).

The ones that are grown in gardens tend to be low growing, and have a spreading nature. Thus making them ideal for use in rock gardens.

Scutellaria plants bloom in the summertime, carrying lipped and hooded tubular shaped flowers that may be red, blue, purple, yellow or white.

Common names include Helmet Flower and Skullcap.

Scutellaria indica by yamada*.

How to Grow Scutellaria

It is best to sow Scutellaria species such as Helmet Flowers and Skullcap outdoors using fresh seed. They should be sown in the autumn with a spacing of about 20 cm / 8 inches (small varieties) or 45 to 60 cm / 18 to 24 inches (larger species)> Lightly cover the seed once sown.

They can grow in either sunny or partially shaded areas, and require good drainage. Ideally the soil should be moist and slightly acidic (pH 6 to 7).

Caring for Scutellaria

The ground that Scutellaria grow in should be mulched in the spring time. The tips of the plant should be initially pinched back to encourage branching and a bushy growth.

They like a moist soil so keep well watered. If they start to spread, then thin the plants by division (this method can also be used to propagate plants in the spring; alternatively take cuttings from new shoots in the summer).

Common Questions

How many members does the Scutellaria genus have?

The Scutellaria genus comprises around 300 species, often referred to as skullcaps due to the shape of their seed pods.

Do members of Scutellaria make a good garden or landscaping plant?

Scutellaria species can be an intriguing addition to gardens, notable for their interesting flowers. They do well in wildflower or native plant gardens.

Which Scutellaria species are most frequently grown by gardeners?

Scutellaria baicalensis (Chinese Skullcap) and Scutellaria lateriflora (American Skullcap) are popular for their medicinal properties and interesting flowers.

Are members of the Scutellaria plant genus fragrant?

The flowers of the Scutellaria genus are typically not fragrant.

What is the perfect location to grow Scutellaria?

Scutellaria prefers full sun to partial shade and well-drained soil. It can tolerate a variety of soil conditions, making it quite versatile.

Is Scutellaria invasive in the USA, if so in which states?

Currently, Scutellaria is not considered invasive in the USA. Always check local regulations for the most accurate information.

How do I remove Scutellaria plants from my garden?

To remove Scutellaria, pull out the entire plant, ensuring you remove all roots to prevent regrowth.

Summary

The Scutellaria genus includes perennial plants native to temperate regions worldwide. They are valued for their tubular, two-lipped flowers and their attractive foliage, and some species are used in traditional herbal medicine.

Grow Scutellaria from seeds or cuttings, ideally in spring. They prefer full sun to partial shade and well-drained soil. Regular watering is necessary, particularly during dry periods, but overwatering should be avoided to prevent root rot. Some species may need staking to support their stems.

I hope that you enjoyed this guide on how to grow Scutellaria plants. You may also enjoy the following Gardener's HQ growing guides: How to grow Stachys and Physotegia plants.