Swamp coprosma (Coprosma propinqua)

Also known as: Mingimingi, Prickly coprosma

The genus name of Coprosma propinqua comes from the Greek words for “dung” (kopros) and “smell” (osme), referring to its unpleasant scent. The Maori name “mingimingi” is also quite expressive. Nevertheless, it is a useful plant for hedges, windbreaks, and soil reclamation. Its translucent blue berries are eaten by birds. The wood is a source of yellow dye.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Swamp coprosma

Lifespan

Perennial

Plant Type

Tree, Shrub

Plant Height

3 m to 6 m

Spread

2 m

Leaf Color

Dark green

Flower Size

2 mm to 3 mm

Flower Color

Pale green

Images of Swamp coprosma

Quickly Identify Swamp coprosma

To identify Coprosma propinqua, look for its small, opposite leaves which are dark green and leathery. The plant has tiny, inconspicuous flowers and produces small, blue-black berries. Its stems are often wiry and can form dense thickets.

Scientific Classification of Swamp coprosma

Phylum

Vascular plants

Class

Dicotyledons

Order

Gentianales

Family

Madder

Genus

Mirrorplant

Species

Swamp coprosma

Planting and Growing of Swamp coprosma

Care Difficulty

Easy

Watering Schedule

Every 4 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

Terracotta, Plastic

How to Water Swamp coprosma?

When watering Coprosma propinqua, it is crucial to ensure the soil is moist but not waterlogged. Aim to provide about 500 ml of water per session. The plant prefers the soil to dry slightly between waterings but should not dry out completely. This modest amount of water ensures that the roots receive adequate hydration without becoming oversaturated, fostering healthy growth and vibrant leaves.

What are the symptoms of an underwatered Swamp coprosma? ›

What should I do if my Swamp coprosma is not getting enough water? ›

What are the symptoms of an overwatered Swamp coprosma? ›

How to save an overwatered Swamp coprosma? ›

What Are the Sunlight Requirements for Swamp coprosma?

Sunlight Requirements: Partial sun, Full sun

Duration of light: 4-6 hours daily

Coprosma propinqua ideally enjoys partial to full sun, translating to benefits in robust growth and vibrant foliage, essential for sustaining its health and aesthetic qualities.

What is the preferred sunlight exposure? ›

How can you achieve ideal lighting? ›

What are the benefits of ideal lighting? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Swamp coprosma?

Ideal Temperature: 60 ~ 75℉

Coprosma propinqua thrives in a moderately warm environment. An ideal temperature range of 60°F to 75°F is crucial for promoting healthy growth and development. This temperature window ensures optimal photosynthesis and nutrient uptake, leading to vibrant foliage and robust health.

What Soil is Best for Swamp coprosma?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Coprosma propinqua thrives in well-draining soil which prevents waterlogging. This is vital as it reduces the risk of root rot, promoting overall plant health and vigorous growth. This plant prefers soil with moderate fertility. Rich soils can lead to lush foliage, but moderate fertility encourages balanced growth and resilience to environmental stresses. While well-draining, the soil should still retain some moisture to ensure consistent hydration. This balance supports sustained plant growth and vibrant leaf color.

How to Fertilize Swamp coprosma?

Fertilizer type: Balanced

For Coprosma propinqua, use a balanced fertilizer at half strength to avoid nutrient burn. In general, apply about 1/4 cup of liquid fertilizer for each plant per application to ensure it gets the nutrients it needs without overloading.

How to Prune Swamp coprosma?

Pruning Time: Spring, Summer, Autumn, Winter

To maintain a tidy and attractive appearance for Coprosma propinqua, prune lightly each month. Focus on trimming back any shoots that disrupt the desired shape. Use sharp, clean pruning shears to make precise cuts just above a node or bud, encouraging the shrub to grow denser and more compact. For lush and vigorous growth, identify the older branches that seem overgrown or leggy. Cut these branches back significantly to promote the emergence of new shoots. This method rejuvenates the overall plant, enhancing its vitality and robustness. Always ensure cuts are smooth to prevent potential damage or disease. Regularly inspect Coprosma propinqua for any dead or diseased wood. Remove these branches promptly to prevent the spread of disease and improve air circulation throughout the plant. This step is crucial for keeping the plant healthy and reducing the risk of pest infestations. More About Pruning Techniques→

How to Propagate Swamp coprosma plant?

Propagate Time: Spring, Early summer

Start by collecting ripe seeds from the Coprosma propinqua plant. Clean the seeds to remove any pulp or residue to prevent fungal growth during germination.

Fill the seed tray with a well-draining mixture and place the cleaned seeds on the surface. Lightly cover the seeds with a thin layer of soil to ensure proper germination conditions.

Cut healthy, non-flowering shoots from the parent plant about 10-15 cm long. Remove the lower leaves and dip the cut end in a rooting hormone to enhance root development.

More About Propagating Techniques→

How to Repot Swamp coprosma plant?

Repotting frequency: Every 2-3 years

Coprosma propinqua requires repotting when roots start to circle the pot or escape through drainage holes, or when growth seems stunted even with proper care. Spring and autumn are ideal, providing the best balance between seasonal growth and reduced stress.

Select a pot just 2 inches larger in diameter than the current one. Ensure it has drainage holes to prevent water logging. A pot too large too quickly can lead to poor root development and potential plant health issues.

Pick a well-draining potting mix rich in organic matter. This ensures adequate moisture retention without waterlogging, providing an ideal growing environment that mirrors its natural habitat needs.