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Plants That Flower All Year Round in Australia

Written By:
Scott Carroll
Published On:
January 25, 2024
Flowering magnolia

Plants that flower all year in Australia are about more than finding beautiful additions to your garden. They contribute to the area’s ecological health, support biodiversity, break up the monotony of the lawn, and provide essential resources for pollinators and other wildlife. Understanding how to make the most of these plants and match the right plant to the right climate zone is critical to getting the landscape you have always dreamt of.

Understanding Australia’s climate zones

Australia’s diverse landscape has distinct climate zones, offering unique gardening opportunities. In the north, we find the Tropical zone, characterised by warm, humid conditions ideal for a range of vibrant plants. 

Moving south, the Subtropical zone offers a blend of warm, wet summers and mild winters, perfect for a variety of flowering species, while the Temperate zone, covering much of the southern regions, provides a cooler, more varied climate, allowing a different set of plants to flourish. 

Each zone presents its own set of gardening delights and challenges, setting the stage for a rich tapestry of horticultural experiences.

Tropical zone

Plants that flower all year in Australia: Tropical Zone

The Tropical zone in Australia covers the Top End of the Northern Territory, which includes the areas around Kakadu and Arnhem Land. Several amazing flowering plants do well in this area and offer amazing colour and diversity to home gardens in Australia. Our plant experts recommend the following:

Hibiscus (Hibiscus rosa-sinensis)

Hibiscus thrives in Australia’s lush Tropical zones, bringing vibrant colours to our gardens. 

For successful growth, plant Hibiscus in well-draining soil enriched with organic matter. These beauties crave sunlight, so ensure they bask in full sun for at least six hours daily. Regular watering is key, but be cautious of overwatering – Hibiscus prefers soil that’s moist but not soggy.

A balanced, slow-release fertiliser every few weeks will keep them flourishing during the growing season. Remember, Hibiscus is a bit of a diva regarding temperature – they love the warmth and might need protection on cooler nights. For more information, check out our guide on the different hibiscus varieties in Australia here.

Frangipani (Plumeria)

Frangipani is a tropical treasure with its intoxicating fragrance and stunning blooms. 

Thriving in full sun, these plants need at least six hours of sunlight to produce their iconic flowers. Well-draining soil is necessary to prevent root rot, a common issue in wetter conditions. Watering should be moderate – allow the soil to dry out between waterings. 

Frangipani benefits from high-phosphorus fertilisers during the growing season to encourage blooming. Pruning is essential for shaping the plant and encouraging more branches, which means more flowers. 

Be mindful of rust, a common fungal problem, and treat it promptly to keep your Frangipani healthy!

Bougainvillea (Bougainvillea sp)

Bougainvillea, a riot of colour, is perfect for adding drama to tropical landscapes. These hardy plants love the sun and require a location that offers full sunlight for most of the day. They’re not fussy about soil as long as it drains well, making it the perfect plant for a fence line in Australia

Watering should be done sparingly – Bougainvillea’s vibrant display is enhanced when the plant is slightly stressed for water. Fertilise with a high-potassium fertiliser to boost flower production. Regarding pests, keep an eye out for aphids and caterpillars. Regular pruning not only keeps Bougainvillea in shape but also encourages more flowering. 

They can bloom almost year-round in tropical climates, making them a spectacular addition to any garden.

Subtropical zone

Plants that flower all year in Australia: Subtropical Zone

The Sub-tropical zone covers areas around the coastal and inland fringe along the Queensland coast. Many coastal cities are included, with Lady Elliot Island also included in this zone. Many amazing plants thrive in this zone. Our plant experts recommend the following:

Bird of Paradise (Strelitzia reginae)

In the subtropical zones, the Bird of Paradise, known for its striking flowers, thrives with the right care. These plants prefer rich, well-draining soil, ideally with a bit of loam to retain moisture while providing good drainage. 

Watering should be consistent – the soil should be moist but not waterlogged. During the warmer months, increase the watering frequency and reduce it in cooler months. 

To encourage blooming, provide plenty of sunlight; they need at least half a day of sun to produce spectacular flowers. Fertilise with a slow-release, balanced fertiliser during the growing season to support their vibrant growth. Remember, patience is key – new plants might take a few years to bloom.

Camellia (Camellia japonica)

Camellias, with their elegant blooms, are a subtropical delight. They prefer a partially shaded spot, sheltered from the intense afternoon sun, which can scorch their leaves. 

The morning sun with dappled afternoon shade is ideal. The soil should be slightly acidic, well-draining, and rich in organic matter. 

Regular watering is essential, especially during dry spells, to keep the soil evenly moist. Overwatering or poor drainage can lead to root rot, so moderation is crucial. 

Pruning should be done just after blooming to shape the plant and remove dead or weak wood. Fertilise with acid-forming fertilisers after blooming to maintain health and encourage future blooms.

Gardenia (Gardenia jasminoides)

Gardenias, renowned for their fragrant white flowers, require specific conditions to thrive in subtropical zones. They love high humidity, so consider placing them where they can get morning sun and afternoon shade, especially in hotter climates. 

The soil should be well-draining, rich in organic matter, and maintain a slightly acidic pH. Regular watering is crucial to keep the soil consistently moist but not soggy. Mulching helps retain moisture and maintain soil temperature. To encourage blooming, use a fertiliser high in potassium and magnesium. 

Pruning after the main bloom helps encourage bushier growth and more flowers. Watch out for common issues like yellowing leaves, indicating poor drainage or nutrient deficiencies.

Temperate zone

Plants that flower all year in Australia: Temperate Zone

The Temperate zone occupies some stunning continent areas, including New South Wales, Victoria, Tasmania, and most of South Australia. Plants that flower all year long here are diverse and offer many colour variations. Our plant experts recommend the following:

Lavender (Lavandula)

Lavender, known for its soothing fragrance and beautiful blooms, can be a delightful addition to gardens in temperate zones. Lavender thrives in well-draining, slightly alkaline soil. It’s crucial to avoid wet, heavy soils to prevent root rot. 

Full sun exposure is key – aim for at least six hours of direct sunlight daily. When planting, consider adding gravel or sand to improve drainage. Watering should be moderate; allow the soil to dry out between waterings, as Lavender prefers drier conditions. Overwatering is a common pitfall. 

Fertilisation isn’t typically necessary, but a light application of compost in spring can be beneficial. Harvest Lavender when the buds are formed before they fully open for the most potent fragrance. Dry the harvested Lavender in a cool, shaded area for use in sachets, oils, or culinary pursuits.

Rosemary (Rosmarinus officinalis)

Rosemary, a robust and aromatic herb, is well-suited to temperate climates. It prefers full sun and can tolerate drought, making it a low-maintenance choice for gardeners. 

Plant Rosemary in well-draining soil; it doesn’t like wet feet and can suffer from root rot in soggy conditions. Watering should be done sparingly – only when the soil feels dry. 

Rosemary can be planted whenever the soil is warm, typically in late spring or early summer. It’s a fantastic addition to rock gardens, borders, or fragrant ground cover. Pruning is essential to maintain its shape and encourage bushy growth. 

Rosemary can also be grown in containers, making it versatile for various garden settings.

Kangaroo Paw (Anigozanthos)

Kangaroo Paw, unique to Australia, is known for its striking flowers and loves the temperate climate. Perfect for a poolside feature, it requires well-draining soil; consider adding sand or a native plant potting mix to improve drainage. 

Plant Kangaroo Paws in a sunny spot; they need full sun to flourish and produce vibrant blooms. When planting, give them space to allow for air circulation, which helps reduce the risk of fungal diseases. 

Watering should be moderate; allow the soil to dry out between waterings. During the colder months, protect Kangaroo Paws from frost by covering them or bringing container plants indoors. 

Regular deadheading encourages more blooms and keeps the plant looking tidy. Be mindful of snails and slugs, which can be attracted to these plants, and manage them as needed.

Benefits of year-round flowering plants

Once you understand the different Australian climate zones, it is time to find your flowering plants. Here are some reasons why our horticulture experts are so in love with year-round flowering plants and why we feel they are so important to Australian environments:

  • Aesthetics: Year-round flowering plants keep gardens full of colour and vibrancy all year round.
  • Pollinator support: Many flowering plants are a vital food source for pollinators and beneficial insects.
  • Biodiversity: With flowering plants growing year-round, you support diverse local environments.
  • Habitat creation: Year-round flowering plants can serve as habitat and shelter for wildlife.
  • Environmental: Plants help clean the air, prevent erosion, and combat the effects we have on nature.
  • Sustainable gardening: Native plants can flower often and are safe and easy to care for.

Year-round flowering plants in Australia are an important part of our ecology, and we believe in their power to improve garden aesthetics and biodiversity. Their significance comes from their ability to improve plant and animal habitats and our homes and residences.

Caring for year-round flowering plants in Australia

Year-round flowering plants are an important part of Australian landscape and plant management. 

Caring for flowering plants is a delicate balance that must be maintained to ensure the plants have what they need to produce stunning blooms season after season. Whether drought-tolerant hedge plants, flowering shrubs, or smaller flowering plants, these beautiful plants are a wonderful addition to any garden space. 

Our plant experts recommend following these basic care tips to get the most bang for your buck when it comes to flowering plants in our beautiful Australia:

Watering

It is important to check the specific watering needs of each plant as well as to keep the regional and seasonal rainfall patterns in mind. Giving flowering plants enough water ensures they are not stressed and have the energy to keep producing flowers.

Soil and fertiliser

Soil nutrient levels and drainage preferences are something else to consider when growing flowering plants all year. Adding fertiliser to the soil will also boost growth and ensure plants produce larger and healthier blooms during their seasons. For Australian natives, your fertilising needs must shift slightly to cater to their needs. Anything containing a low amount of phosphorus will do the trick! 

Pruning and maintenance

Pruning flowering plants when the flowers start to fade, or at the least deadheading the spent blooms, will encourage new flowers to appear. This is an important part of keeping flowering plants healthy and stimulating new flushes of blooms for as long as possible.

Disease and pest control

In managing diseases and pests in year-round flowering plants, adopting organic and eco-friendly strategies is crucial:

  • Regularly inspect plants for early signs of trouble, such as discoloured leaves or stunted growth. 
  • Use neem oil, baking soda, and water mixture as effective treatments for fungal diseases. 
  • Introduce beneficial insects like ladybugs to combat aphids and mites. Birds are another effective way to combat this, as they are natural pest controllers. 
  • For snails and slugs, use beer traps or crushed eggshells.

Always prioritise preventive measures like proper spacing, adequate watering, and good air circulation to maintain plant health and resilience.

Companions for plants that flower all year round

Companion planting enhances the garden’s beauty and health, especially for plants that flower year-round. 

Marigolds are excellent companions, deterring pests with their strong scent while adding vibrant colour. Lavender pairs well, offering a soothing aroma and attracting beneficial pollinators. 

Nasturtiums, with their bright blooms, are great for repelling unwanted insects. Herbs like rosemary and basil complement the garden’s aesthetics and serve as natural pest deterrents. 

Planting legumes like beans and peas can improve soil nitrogen levels, benefiting neighbouring plants. These companions create a harmonious and healthy garden ecosystem, enhancing beauty and productivity.

Landscaping ideas for all-year flowering plants

 

Incorporating year-round flowering plants into landscaping brings endless possibilities for creating vibrant, ever-blooming gardens. Here are some creative ideas:

  • Cottage garden theme: Embrace a charming, informal look with a mix of flowering perennials like Lavender, Roses, and Geraniums. Intersperse with annuals for continuous colour and add winding pathways lined with low-growing Thyme or Chamomile for a whimsical touch.
  • Formal garden layout: Create symmetry and structure using geometric patterns. Box hedges can frame beds of year-round bloomers like Camellias and Azaleas. Add a central feature like a fountain or statue, surrounded by circular beds of colourful Kangaroo Paws and Salvias.
  • Native plant garden: Focus on indigenous species for a garden that’s not only beautiful but also supports local wildlife. Use plants like Waratah, Bottlebrush, and Banksia for their vibrant flowers and resilience. Group plants with similar water and sun needs for a natural yet cohesive look.
  • Vertical gardening: Use trellises or wall planters with climbing plants like Bougainvillea or Jasmine for small spaces. This approach adds height and interest, creating a lush green backdrop.
  • Mixed borders: Combine shrubs, small trees, and perennials for a layered effect. Hibiscus and Frangipani can serve as focal points, with underplantings of colourful annuals and groundcovers like Alyssum or Lobelia.
  • Rock gardens: Incorporate drought-tolerant species like Lavender and Rosemary among rocks and gravel. This creates a low-maintenance landscape that’s perfect for arid climates.
  • Water-wise gardening: Opt for drought-resistant plants like Sedum or Euphorbia in areas with water restrictions. Use mulch to retain moisture and reduce watering needs.

Each theme can be adapted to suit the specific climate zone and personal taste, creating a unique and flourishing garden that delights year-round.

Final thoughts 

We understand that there are many reasons for sprucing up your landscape and making it look its best. One of Australia’s most challenging parts of landscaping is understanding the continent’s diverse climates. We hope this guide has given you insight into how to find the best flowering plants for your home landscape needs. 

Call us today if you have questions about what plants are best suited for your yard, and let us help you keep your landscape full of colour all year!

FAQs

What are effective methods for propagating year-round flowering plants?

Many year-round flowering plants can be propagated through cuttings, division, or seeds. Choose a healthy stem, cut it at an angle, and plant it in a suitable growing medium for cuttings. Division involves separating a mature plant into smaller parts with its own root system. Seed propagation varies depending on the plant species, with some requiring specific conditions for germination.

What tips can you offer for successful container gardening with year-round flowering plants in small spaces?

Choose containers with good drainage and use high-quality potting soil. Consider the light requirements of each plant and place containers accordingly. Regular watering and fertilisation are key, as container plants may have different needs than those in the ground. Also, select plants that are suitable for the size of the container to avoid overcrowding.

How does climate change affect year-round flowering plants in Australia?

Climate change can alter flowering times, potentially disrupting pollination processes. Increased temperatures and changing rainfall patterns can also stress plants, making them more susceptible to pests and diseases. Some plants may struggle in hotter conditions, while others might thrive. Gardeners may need to adapt their practices by choosing more drought-resistant varieties or altering planting times.