Beach naupaka (Scaevola sericea)

Also known as: Sea lettuce, Beach grape, Papatjeda, Magoo

Beach naupaka (*Scaevola sericea*) is a robust shrub reaching up to 3 meters in height, thriving in dry coastal regions of tropical climates. Its fruit has the unique ability to float and can still sprout after spending up to a year in salt water.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Beach naupaka

Lifespan

Perennial

Plant Type

Shrub

Plant Height

4 m

Spread

3 m

Leaf Color

Green Yellow

Flower Size

1.9 cm

Flower Color

White Green Cream Purple

Images of Beach naupaka

Quickly Identify Beach naupaka

Identifying Scaevola sericea involves looking for its distinctive semi-circular or fan-shaped white or light purple flowers. The plant has leathery, oval-shaped leaves with a succulent texture and can often be found in sandy coastal environments.

Scientific Classification of Beach naupaka

Phylum

Vascular plants

Class

Dicotyledons

Order

Asterales

Family

Goodenia

Genus

Naupaka

Species

Beach naupaka

Planting and Growing of Beach naupaka

Care Difficulty

Easy

Watering Schedule

Every 4 days

Sunlight Requirements

Full sun

Sunshine Duration

6-10 hours

Ideal Temperature

65-85℉

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 Beach naupaka?

When watering Scaevola sericea, ensure the soil is thoroughly moistened but not waterlogged, providing around 500ml of water each time. Follow the principle of soaking the soil completely, ensuring excess water drains out to avoid root rot.

What are the symptoms of an underwatered Beach naupaka? ›

What should I do if my Beach naupaka is not getting enough water? ›

What are the symptoms of an overwatered Beach naupaka? ›

How to save an overwatered Beach naupaka? ›

What Are the Sunlight Requirements for Beach naupaka?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6 to 8 hours

Scaevola sericea flourishes in full sun to partial sun settings, benefiting from enhanced photosynthesis, encouraging dense foliage, and promoting abundant flower production when light conditions meet its needs.

How much sunlight does the Scaevola sericea need daily? ›

What solutions can help ensure adequate sunlight? ›

What benefits does ideal lighting bring? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Beach naupaka?

Ideal Temperature: 65 ~ 85℉

For optimal growth, Scaevola sericea prefers a warm, tropical climate with temperatures ranging from 65°F to 85°F. These temperatures align closely with its natural habitat, where it thrives in sunny, coastal areas. Maintaining this range ensures robust growth and vibrant foliage.

What Soil is Best for Beach naupaka?

Soil type: Sandy soil, Sandy loam

Soil PH: 6.5 ~ 7.5

Scaevola sericea thrives in sandy soils that provide excellent drainage. These soils replicate its natural coastal habitats, preventing root rot from waterlogged conditions. While sandy soils are ideal, a nutrient-rich loam can support Scaevola sericea's growth by supplying essential nutrients and facilitating moderate moisture retention. This enhances its lush foliage. The soil should maintain warmth, mimicking the warm beach environments Scaevola cherishes. Warm soils quicken metabolic activities, boosting growth speed and plant health.

How to Fertilize Beach naupaka?

Fertilizer type: Balanced

Scaevola sericea, commonly known as 'beach naupaka,' requires a balanced approach to fertilization. When using liquid fertilizers, ensure to dilute the solution to half the recommended strength. For slow-release fertilizers, apply a measurement of about 1 pound per 100 square feet to maintain healthy growth.

How to Prune Beach naupaka?

Pruning Time: Spring, Summer, Autumn, Winter

When pruning Scaevola sericea, always wear gloves to protect your hands from sharp tools and possible allergens. Monitor the plant throughout the seasons to decide the optimal time for pruning, focusing on times when growth slows down. Ensure your tools are sterilized before and after use to prevent the spread of plant diseases. In regions prone to pests, apply neem oil after pruning to offer additional protection. Keep an eye out for any abnormal growths as these may require specialized treatment. More About Pruning Techniques→

How to Propagate Beach naupaka plant?

Propagate Time: Spring, Early summer

Begin by soaking the seeds of Scaevola sericea in warm water for 24 hours. This helps to soften the seed coat and promote faster germination. After soaking, plant the seeds in well-draining seed trays filled with sterile potting mix, covering them lightly with soil.

Choose healthy, non-flowering stems for cutting propagation, ideally about 4-6 inches long. Make a clean cut just below a node and remove any leaves from the lower half of the cutting. Dip the cut end in rooting hormone to encourage root development.

Place the prepared cuttings in pots filled with a mix of sand and peat moss. Position them in a warm, bright location but away from direct sunlight. Keep the soil consistently moist but not waterlogged. Covering the cuttings with a clear plastic bag can help maintain humidity.

More About Propagating Techniques→

How to Repot Beach naupaka plant?

Repotting frequency: Every 2-3 years

Scaevola sericea needs repotting when its roots start peeping through the drainage holes. This indicates the plant has outgrown its current home and needs more space. Additionally, reduced growth despite watering and fertilization suggests it’s time for a bigger pot.

When selecting a pot for Scaevola sericea, ensure it is at least 2 inches larger in diameter than the current one to provide ample space for root expansion. Opt for pots with good drainage holes to prevent waterlogging, which can lead to root rot.

Choose a sandy, well-draining potting mix to encourage healthy root growth and prevent water retention. This type of soil mimics its natural coastal habitat, allowing for optimum oxygen flow and preventing root diseases.