California balsamroot (Balsamorhiza macrolepis)

Also known as: California balsamroot

California balsamroot is a hardy perennial that features large, arrow-shaped leaves with woolly undersides designed to retain moisture. Its tall flower stalks bear bright yellow, sunflower-like blooms that attract pollinators in its dry native environments. The plant's deep taproot system allows it to access water from deep underground, ensuring survival during extended dry periods and providing a strong anchor in rocky soils.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of California balsamroot

Lifespan

Perennial

Plant Type

Herb

Plant Height

30-100 cm

Spread

not typically applicable to this species, as it is an herbaceous plant

Leaf Color

Green

Flower Size

4-8 cm

Flower Color

Yellow

Images of California balsamroot

Quickly Identify California balsamroot

Balsamorhiza macrolepis can be identified by its large, hairy leaves and bright yellow, sunflower-like flower heads. The leaves are often deeply lobed and can be quite sizable. The plant typically blooms in the spring.

Scientific Classification of California balsamroot

Phylum

Vascular plants

Class

Dicotyledons

Order

Asterales

Family

Daisy

Genus

Balsamroots

Species

California balsamroot

Planting and Growing of California balsamroot

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

4-6 hours

Ideal Temperature

60-75℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water California balsamroot?

Balsamorhiza macrolepis thrives best when watered thoroughly but infrequently. Ensure that the water percolates 500 milliliters deep into the soil, reaching the roots but avoiding waterlogging. Allow the soil to dry out in between waterings to prevent root rot.

What are the symptoms of an underwatered California balsamroot? ›

What should I do if my California balsamroot is not getting enough water? ›

What are the symptoms of an overwatered California balsamroot? ›

How to save an overwatered California balsamroot? ›

What Are the Sunlight Requirements for California balsamroot?

Sunlight Requirements: Full sun

Duration of light: 6-8 hours per day

Balsamorhiza macrolepis thrives in full sun. Ideal lighting conditions allow for optimal growth and flowering, maximizing photosynthetic efficiency and enhancing resilience against pests.

What is the ideal lighting for Balsamorhiza macrolepis? ›

How can I ensure my plant receives the ideal amount of sunlight? ›

What benefits does ideal sunlight provide to this plant? ›

What Is the Ideal Temperature Range for California balsamroot?

Ideal Temperature: 60 ~ 75℉

The ideal temperature range for Balsamorhiza macrolepis is between 60°F and 75°F. These temperatures provide the optimal environment that mimics their natural habitat, ensuring healthy growth and vibrant blooming. Consistent temperatures within this range support the plant’s metabolic processes and reduce stress.

What Soil is Best for California balsamroot?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Balsamorhiza macrolepis thrives in well-drained soil, which prevents waterlogging and root rot. The porous nature of such soil ensures that excess water runs off, while still retaining enough moisture to nourish the plant. The presence of organic matter is crucial as it provides essential nutrients that support robust growth. It enhances soil structure, improves water retention, and supplies a steady nutrient release as it decomposes. Maintaining a neutral pH ensures that the plant can absorb nutrients efficiently. Slightly acidic to neutral soils, with a pH around 6.5 to 7.5, prevent nutrient lock-up and support healthy development.

How to Fertilize California balsamroot?

Fertilizer type: Balanced

For Balsamorhiza macrolepis, it is crucial to apply the fertilizer at a moderate rate. Use approximately 1 tablespoon of balanced liquid fertilizer per gallon of water. When using slow-release granules, distribute around 2 tablespoons evenly across the soil surface per application.

How to Prune California balsamroot?

Pruning Time: Spring, Summer

Start by removing any dead or diseased stems. These can be identified by discoloration or lack of vitality compared to healthy stems. This practice helps improve the overall health of the plant by allowing it to focus energy on growth rather than repairing damaged areas. After removing dead stems, you can shape the plant. Trim from the edges inwards, following the natural shape of the plant to maintain its aesthetic appeal. Keep in mind not to over-prune, as this can stress the plant. More About Pruning Techniques→

How to Propagate California balsamroot plant?

Propagate Time: Spring, Late Spring

Fill seed trays with a quality seed-starting mix. Sow Balsamorhiza macrolepis seeds evenly on the surface and cover them lightly with soil. Water gently and place the trays in a warm, sunny spot.

Once the seedlings have developed a few true leaves, transplant them into individual pots. Handle the seedlings carefully to avoid damage, and plant them at the same depth as they were in the seed tray.

Gently dig around the Balsamorhiza macrolepis and lift the plant from the ground. Using a sharp, clean tool, divide the root ball into smaller sections, ensuring each section has adequate roots and shoots.

More About Propagating Techniques→

How to Repot California balsamroot plant?

Repotting frequency: Every 2-3 years

Identify repotting signals like roots growing out of drainage holes or soil compaction. Optimal repotting time is during active growth phases in spring and autumn for less stress.

Pick a pot that's 1-2 inches larger in diameter to allow for root expansion. Ensure it has proper drainage holes to prevent waterlogging, promoting healthy root growth.

Choose a well-draining, slightly alkaline soil mix. This helps prevent root rot and provides essential nutrients, creating a stable environment for the plant's growth.