Beach Silvertop (Glehnia)(Glehnia)

Beach Silvertop (Glehnia) (Glehnia)

Also known as: Beach Silvertop, North Pacific Plantain

Beach Silvertop (Lagunaria patersonii) is a hardy, evergreen tree native to coastal areas of Queensland and New South Wales in Australia. Unlike the description provided, this tree can grow up to 10-15 meters tall and features a dense, rounded canopy. Its leaves are glossy green on top and silvery beneath, not lobular. The tree produces bell-shaped, pinkish-lavender flowers rather than carrot-like white ones. Known for its salt and wind tolerance, Beach Silvertop thrives in coastal environments and can withstand poor soil conditions.

Attributes of Beach Silvertop (Glehnia)

Lifespan
Perennial
Plant Height
30-50 cm
Spread
20-30 cm
Leaf Color
Green
Flower Size
1-2 cm
Flower Color
White

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Images of Beach Silvertop (Glehnia)

Beach Silvertop (Glehnia)(Glehnia)
Beach Silvertop (Glehnia)(Glehnia)
Beach Silvertop (Glehnia)(Glehnia)
Beach Silvertop (Glehnia)(Glehnia)

Quickly Identify Beach Silvertop (Glehnia)

1
Glehnia can be identified by its long, slender leaves, thick fleshy roots, and umbel clusters of small white flowers. The plant often grows in sandy, coastal environments.

Scientific Classification of Beach Silvertop (Glehnia)

Phylum
Tracheophyta
Class
Magnoliopsida
Order
Apiales
Family
Apiaceae
Genus
Glehnia

Planting and Growing of Beach Silvertop (Glehnia)

Care Difficulty
Moderate
Watering Schedule
Every 2 days
Sunlight Requirements
Partial 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
Plastic, Ceramic

water icon How to Water Beach Silvertop (Glehnia)?

Glehnia requires about 500 milliliters of water per session. The principle to follow is ensuring the soil remains moist but not soggy. Water until the top inch of soil is modestly damp, yet water should not stagnate.
What are the symptoms of an underwatered Beach Silvertop (Glehnia)?
What should I do if my Beach Silvertop (Glehnia) is not getting enough water?
What are the symptoms of an overwatered Beach Silvertop (Glehnia)?
How to save an overwatered Beach Silvertop (Glehnia)?

sunlight icon What Are the Sunlight Requirements for Beach Silvertop (Glehnia)?

Sunlight Requirements: Partial sun
Duration of light: 4 to 6 hours
For Glehnia, partial sun exposure is ideal, meaning around 4 to 6 hours of dappled light daily. This range optimizes photosynthesis while minimizing stress, ensuring the plant thrives.
What is the ideal amount of sunlight for Glehnia?
How can you ensure your Glehnia gets ideal lighting?
What are the benefits of ideal sunlight for Glehnia?

temperature icon What Is the Ideal Temperature Range for Beach Silvertop (Glehnia)?

Ideal Temperature: 60 ~ 75℉
The ideal temperature range of 60°F to 75°F ensures optimal growth and physiological functioning of Glehnia. Within this range, metabolic processes occur efficiently, photosynthesis reaches its peak performance, and the plant experiences minimal stress, supporting robust development.

soil icon What Soil is Best for Beach Silvertop (Glehnia)?

Soil type: Sandy loam, Loam
Soil PH: 6.5 ~ 7.5
Glehnia thrives in well-draining soil which prevents waterlogging and root rot. This type of soil ensures that the plant's roots receive adequate oxygen, promoting healthier growth and development. Glehnia benefits from a soil rich in organic matter, which provides essential nutrients. A nutrient-rich medium supports robust growth and enhances the plant's overall vitality, ensuring lush foliage and strong roots. While Glehnia prefers well-draining soil, it also appreciates moderate moisture retention to keep the roots hydrated without being waterlogged. Balanced moisture levels in soil support consistent plant growth and prevent dehydration.

fertilize icon How to Fertilize Beach Silvertop (Glehnia)?

Fertilizer type: Balanced
Glehnia plants, known for their preference for well-drained, nutrient-rich soils, benefit from a balanced fertilizer ratio of 10-10-10 NPK. They require precise measurement during application, typically at a rate of 1/2 teaspoon per gallon of water for liquid fertilizers, ensuring even distribution without overdose.

prune icon How to Prune Beach Silvertop (Glehnia)?

Pruning Time: Spring, Summer, Autumn
Start by identifying diseased, damaged, or dead branches. Use clean, sharp pruning shears to cut these branches back to the main stem. This will help prevent the spread of disease and improve the plant's overall energy distribution. To promote an aesthetically pleasing shape, remove any crossing or inward-growing branches. Aim to open up the center of the plant, allowing sunlight and air to penetrate through the canopy, promoting even growth.

propagate icon How to Propagate Beach Silvertop (Glehnia) plant?

Propagate Time: Spring, Early spring
1
Glehnia seeds should be cleaned and soaked in lukewarm water for 24 hours to soften the seed coat and improve germination rates before planting in the seed tray.
2
Select healthy, disease-free stems and cut below a node. Ensure that each cutting is about 4-6 inches long, and remove the lower leaves before planting in a potting mix.
3
For root cutting, select mature roots and cut them into sections of 2-3 inches each, planting them horizontally in a well-draining soil mix ensuring they are adequately covered.

repot icon How to Repot Beach Silvertop (Glehnia) plant?

Repotting frequency: Every 2-3 years
1
Glehnia should be repotted when you notice roots circling the container or emerging from the drainage holes. This indicates the plant has outgrown its current space. Another sign is a significant reduction in plant growth which often indicates root overcrowding. Spring or early summer, during the active growing phase, is usually ideal to minimize stress on the plant.
2
Select a pot that is only one size larger than the current one to prevent water retention issues. Opt for a pot with good drainage holes to allow excess water to escape, preventing root rot. The ideal material is terracotta, as it allows the soil to breathe, helping to maintain a balanced moisture level.
3
Glehnia thrives in well-draining soil; therefore, a sandy mix with organic material is ideal. This type of soil mimics its natural habitat, allowing proper aeration and moisture control. The sandy texture ensures that water doesn't linger, reducing the risk of fungal infections and root rot.

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