Nevin's woolly sunflower (Constancea nevinii)

Also known as: Nevius's everlasting, Catalina silverlace

Many Channel Islands endemic plants were at risk of extinction due to the grazing habits of feral goats. With the removal of these goats, the plants are now showing signs of recovery.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Nevin's woolly sunflower

Lifespan

Perennial

Plant Type

Shrub

Plant Height

0.5 to 1 meter

Spread

Up to 2 meters

Leaf Color

Silvery-grey

Flower Size

Approximately 0.5 cm

Flower Color

Yellow

Images of Nevin's woolly sunflower

Quickly Identify Nevin's woolly sunflower

To identify Constancea nevinii, look for its silvery-grey foliage, small yellow flowers in clustered heads, and its shrubby, sprawling growth habit. It often forms dense mats.

Scientific Classification of Nevin's woolly sunflower

Phylum

Vascular plants

Class

Dicotyledons

Order

Asterales

Family

Daisy

Genus

Woolly sunflower

Species

Nevin's woolly sunflower

Planting and Growing of Nevin's woolly sunflower

Care Difficulty

Hard

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

4-8 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

Ceramic, Plastic

How to Water Nevin's woolly sunflower?

For Constancea nevinii, it's crucial to provide just enough water to keep the soil slightly moist but never soggy. This plant thrives with a watering amount of around 250 ml at a time, ensuring the soil receives moisture evenly without pooling.

What are the symptoms of an underwatered Nevin's woolly sunflower? ›

What should I do if my Nevin's woolly sunflower is not getting enough water? ›

What are the symptoms of an overwatered Nevin's woolly sunflower? ›

How to save an overwatered Nevin's woolly sunflower? ›

What Are the Sunlight Requirements for Nevin's woolly sunflower?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 4 to 6 hours daily

Partial sun to full sun ensures Constancea nevinii thrives. With adequate light, photosynthesis is optimized, improving blooming frequency and nutritional health.

How much sunlight does Constancea nevinii need? ›

What can be done to achieve this optimal balance? ›

What are the benefits of achieving ideal sunlight for Constancea nevinii? ›

What Is the Ideal Temperature Range for Nevin's woolly sunflower?

Ideal Temperature: 60 ~ 75℉

The ideal temperature range for cultivating Constancea nevinii is between 60°F to 75°F. This range provides optimal conditions for photosynthesis and growth, ensuring the plant develops strong foliage and remains healthy. Maintaining this temperature range will also support proper nutrient absorption.

What Soil is Best for Nevin's woolly sunflower?

Soil type: Sandy soil, Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Constancea nevinii thrives in well-drained soils that prevent root rot and waterlogging. Ensuring good drainage keeps the roots healthy and supports robust growth. This plant prefers soils with moderate nutrient levels. While not overly demanding, regular supplementation helps sustain its vitality and enhances its natural resilience. Soil aeration is crucial for Constancea nevinii because it allows roots to access oxygen easily. This promotes healthy root systems and optimizes nutrient uptake.

How to Fertilize Nevin's woolly sunflower?

Fertilizer type: Balanced

Constancea nevinii typically requires a balanced approach to fertilization. It's best to apply a diluted solution of liquid fertilizer, such as 1/4 strength of a standard 20-20-20 formula, ensuring not to overwhelm the plant with nutrients. For slow-release fertilizers, a small amount, approximately one tablespoon per square foot, ensures they receive a steady supply of nutrients throughout the season.

How to Prune Nevin's woolly sunflower?

Pruning Time: Spring, Summer

Carefully identify and trim back any dead or diseased leaves and stems. This helps in encouraging fresh growth and maintaining overall health. Gently trim back overgrown areas to achieve a balanced, aesthetically pleasing shape. This maintains the desired size while promoting fuller growth. More About Pruning Techniques→

How to Propagate Nevin's woolly sunflower plant?

Propagate Time: Spring,Summer,Early spring

Begin by selecting healthy and vigorous parent plants to source seeds or cuttings. Look for plants that show no signs of disease or pest infestations, as this maximizes the success rates of propagation.

Collect mature seeds from the plants, ensuring they are dry and free from pests. Soak the seeds overnight to soften the seed coat, which can enhance germination rates when planted in a suitable substrate.

Select a healthy stem and make a clean cut using sterilized pruning shears. Ensure the cutting is around 4-6 inches long with at least a couple of leaf nodes, and remove any extra leaves to reduce water loss.

More About Propagating Techniques→

How to Repot Nevin's woolly sunflower plant?

Repotting frequency: Every 2-3 years

Repot Constancea nevinii when you notice roots crowding around the drainage holes or when the plant starts looking top-heavy. Spring and summer are ideal times as the plant is actively growing and can adjust well to the change. Avoid repotting during winter dormancy.

Select a pot that is one size larger than the current one with adequate drainage holes. This ensures that the roots have enough room to grow and prevents water from pooling at the bottom, which could cause root rot. Terracotta pots are ideal as they are breathable and prevent moisture buildup.

Opt for a well-draining cactus mix that mimics Constancea nevinii's native environment. This type of soil prevents excess water retention, which can lead to root rot. Adding perlite or sand can improve aeration and drainage, promoting healthier root development.