Yellow star-tulip (Calochortus monophyllus)

Also known as: Goldenstar

Calochortus monophyllus is a perennial herb characterized by a slender, occasionally branched stem that can grow up to 20 centimeters in height. The basal leaf measures between 10 and 30 centimeters long and remains green and unwithered during the flowering period. The plant features an inflorescence with 1 to 6 upright, bell-shaped flowers.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Yellow star-tulip

Lifespan

Perennial

Plant Type

Herb

Plant Height

0 mm to 30 cm

Spread

N/A

Leaf Color

Green

Flower Size

2 to 5 cm (0.8 to 2 inches)

Flower Color

Bright yellow with red or brown markings

Images of Yellow star-tulip

Quickly Identify Yellow star-tulip

This plant can be identified by its single, linear basal leaf and bright yellow flowers that have distinctive, fringed or hair-lined petals.

Scientific Classification of Yellow star-tulip

Phylum

Vascular plants

Class

Monocotyledons

Order

Liliales

Family

Lily

Genus

Mariposas

Species

Yellow star-tulip

Planting and Growing of Yellow star-tulip

Care Difficulty

Moderate

Watering Schedule

Every 2 days

Sunlight Requirements

Partial sun

Sunshine Duration

6-12 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 Yellow star-tulip?

Calochortus monophyllus thrives best with a moderate watering amount of around 200 ml per session. This amount ensures that the soil is sufficiently moist but not waterlogged, mimicking its natural habitat conditions. Water until the topsoil is damp and moisture slightly penetrates deeper, but avoid stagnant water.

What are the symptoms of an underwatered Yellow star-tulip? ›

What should I do if my Yellow star-tulip is not getting enough water? ›

What are the symptoms of an overwatered Yellow star-tulip? ›

How to save an overwatered Yellow star-tulip? ›

What Are the Sunlight Requirements for Yellow star-tulip?

Sunlight Requirements: Partial sun, Full sun

Duration of light: 4 to 6 hours daily

Partial sun to full sun helps Calochortus monophyllus to maintain its health and bloom vigorously. Ideal light exposure ensures efficient photosynthesis, vital energy production, and robust growth, which contribute significantly to the plant's overall vitality.

What is the ideal light intensity for Calochortus monophyllus? ›

How can you achieve this ideal lighting for your plant? ›

What are the benefits of ideal lighting for Calochortus monophyllus? ›

What Is the Ideal Temperature Range for Yellow star-tulip?

Ideal Temperature: 60 ~ 75℉

The ideal temperature range for growing Calochortus monophyllus is between 60°F and 75°F. This range ensures optimal growth and flowering, as it mimics the plant's natural habitat conditions. Maintaining these temperatures can help in encouraging healthy foliage and vibrant blooms.

What Soil is Best for Yellow star-tulip?

Soil type: Sandy loam, Loam

Soil PH: 6.5 ~ 7.5

Calochortus monophyllus thrives in well-drained soil to prevent waterlogging and root rot. This allows the roots to breathe easily, ensuring healthy growth and vibrant blooms. Soils with moderate fertility are ideal for this plant, as they provide the necessary nutrients without causing excessive vegetative growth, which can impede its delicate flowering. Incorporating organic matter into the soil enhances its structure and nutrient-holding capacity, supporting Calochortus monophyllus with a steady nutrient supply and vigorous growth.

How to Fertilize Yellow star-tulip?

Fertilizer type: Balanced

Calochortus monophyllus requires careful fertilization due to its delicate root system. Use a diluted solution at a quarter strength for liquid fertilizer. For slow-release fertilizer, a scant tablespoon per bulb is adequate. Always ensure the soil is moist before application to avoid root burn.

How to Prune Yellow star-tulip?

Pruning Time: Autumn

The bulb of Calochortus monophyllus is the heart of the plant. While pruning, avoid disturbing or damaging the bulb, as it is the source of the plant's growth energy. Make sure any cuts near the base are clean and precise. Calochortus monophyllus does not require extensive pruning. Over-pruning can stress the plant, reducing its ability to flower well in the subsequent season. Focus on removing only the dead and diseased parts to maintain its natural form and vigor. More About Pruning Techniques→

How to Propagate Yellow star-tulip plant?

Propagate Time: Spring, Early spring

Collect seeds from mature Calochortus monophyllus plants during late summer to early autumn. Ensure seeds are fully ripe and dry before attempting to store or plant them to guarantee the best chance of successful germination.

Scatter seeds across the surface of a pre-moistened seed tray filled with potting soil in early spring. Lightly press the seeds into the soil but do not cover them completely, as they require light for germination.

Ensure consistent moisture by misting the soil surface regularly, but avoid waterlogging which can lead to seed rot. Maintain high humidity until germination occurs, typically within a few weeks.

More About Propagating Techniques→

How to Repot Yellow star-tulip plant?

Repotting frequency: Every 2-3 years

You should consider repotting Calochortus monophyllus when the bulb starts to outgrow its pot, evidenced by roots visible on the surface or through drainage holes. Also, if the soil retains moisture for too long, it's probably time to refresh the soil. The best time to do this is during its dormant period in early spring or late autumn.

Select a pot that is just slightly larger than the current one, providing enough space for growth without overwhelming the roots. Ensure the pot has adequate drainage holes to prevent waterlogging. A well-chosen pot minimizes water retention, fostering healthy bulb growth and preventing dreaded root rot.

Opt for a sandy soil mix that allows water to flow freely, avoiding any excessive retention. This type of soil mimics the plant's natural environment, promoting robust root health and reducing the risk of diseases associated with overwatering. A well-draining mix ensures your Calochortus monophyllus thrives.