Bursaria spinosa

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TO PLANT WITH YOUR Bursaria spinosa

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Description

The Bursaria spinosa, often referred to as the Australian Blackthorn or Sweet Bursaria, is a native Australian shrub or small tree that stands out with its intricate branching pattern and delicate white flower clusters. Often utilized as a natural hedge or barrier due to its thorny nature, it also plays a pivotal role in attracting native wildlife, especially butterflies. Fragrant blooms, usually in profusion, appear from late spring to summer, releasing a sweet scent and providing a visual spectacle.

Common Name: Australian Blackthorn, Sweet Bursaria
Mature Height (meters): 3-10m
Mature Width (meters): 2-4m
Spacing: 2-3m for hedging purposes
Foliage: Small, elliptical green leaves
Flowering period: Late spring to summer
Form/ Habit: Intricate branching pattern, shrub or small tree
Uses: Hedging, barrier planting, attracting wildlife, feature plant
Evergreen/ Deciduous: Evergreen
Tolerates: Drought, various soil types, coastal conditions
Drought Hardy: Yes
Sun: Full sun to partial shade
Maintenance: Moderate; occasional pruning for shaping

Water requirement: Moderate; more frequent in dry spells, but once established, it's drought-tolerant

Description

The Bursaria spinosa, often referred to as the Australian Blackthorn or Sweet Bursaria, is a native Australian shrub or small tree that stands out with its intricate branching pattern and delicate white flower clusters. Often utilized as a natural hedge or barrier due to its thorny nature, it also plays a pivotal role in attracting native wildlife, especially butterflies. Fragrant blooms, usually in profusion, appear from late spring to summer, releasing a sweet scent and providing a visual spectacle.

Common Name: Australian Blackthorn, Sweet Bursaria
Mature Height (meters): 3-10m
Mature Width (meters): 2-4m
Spacing: 2-3m for hedging purposes
Foliage: Small, elliptical green leaves
Flowering period: Late spring to summer
Form/ Habit: Intricate branching pattern, shrub or small tree
Uses: Hedging, barrier planting, attracting wildlife, feature plant
Evergreen/ Deciduous: Evergreen
Tolerates: Drought, various soil types, coastal conditions
Drought Hardy: Yes
Sun: Full sun to partial shade
Maintenance: Moderate; occasional pruning for shaping

Water requirement: Moderate; more frequent in dry spells, but once established, it's drought-tolerant

Additional Information You Should Know About Bursaria spinosa

1

Height Guide For Bursaria spinosa

2

Why Choose Bursaria spinosa For Your Garden?

3

How To Grow Bursaria spinosa In Different Soil Types

Optimizing Soil for Hardy, Resilient Growth

Ideal Drainage: Bursaria spinosa thrives best in well-drained soil.

Well-Draining Soil: This is excellent for supporting its growth in a variety of conditions.

If you have the following soil, here are some tips for you:

  • Sandy Soil: Ideal for its natural drainage. Enhance with organic matter to improve nutrient availability and support robust growth.
  • Clay Soil: Can be made suitable with proper amendments. Improve with coarse sand and organic compost to enhance drainage and aeration.
  • Loamy Soil: A great choice; ensure it is not overly rich to prevent excessive growth at the expense of form.
  • Peaty Soil: Rich in organics; ensure adequate drainage by incorporating gravel or sand to prevent waterlogging.
4

Planting Your Bursaria spinosa: Ensuring A Strong Start

How to Plant Bursaria spinosa

  1. Location Choice: Opt for a well-drained location, either in full sun or partial shade.
  2. Soil Prep: It's adaptable but prefers slightly acidic to neutral, well-draining soils.
  3. Hole Dimensions: Approximately double the root ball's width.
  4. Planting: Position the plant in the hole, ensuring it's straight, and fill with soil, pressing down gently.
  5. Watering: Water generously post-planting and during the initial growth phase.
5

Watering Requirements After Planting

When you plant a new tree, it's crucial to give it the right start by ensuring it receives sufficient water. Here’s a general guideline for watering your newly planted tree:

  • Immediately After Planting: Water your tree generously right after planting your Bursaria spinosa to settle the soil around the roots and eliminate any air pockets.
  • First Three Months: The initial three months are critical for the establishment of the tree. During this period, the tree should be hand watered twice daily, in the morning and evening. This helps the roots grow deep and strong.
  • Irrigation System: If you have an irrigation system, adjust it to ensure the tree gets adequate water during these first months.
  • Adjusting to Weather Conditions: Always consider the weather conditions and adjust your watering accordingly. In hotter and drier periods, additional watering may be necessary.

Consistent attention to your tree’s watering needs during this initial period will help ensure its healthy growth and long-term success in your garden.

6

Root Ball Guide

Here is our guide for planting your trees with the appropriate root ball dimensions. When planting, we recommend digging a hole that is 10% larger than the size of your pot, and teasing the rootball before planting to promote better root growth.

Root Ball Dimensions:

  • 40cm Pot: 44 x 38.5 cm
  • 45L Bag: 41.8 x 41.8 cm
  • 50cm Squat Pot: 49.5 x 34.1 cm
  • 50cm Pot: 49.5 x 35.2 cm
  • 70L Pot: 55 x 41.8 cm
  • 75L Bag: 55 x 48.4 cm
  • 90L Pot: 59.4 x 44 cm
  • 100L Bag: 50.6 x 52.8 cm
  • 100L Squat Bag: 58.3 x 49.5 cm
  • 100L Pot: 66 x 49.5 cm
  • 150L Bag: 66 x 55 cm
  • 155L Pot: 74.8 x 52.8 cm
  • 200L Bag: 71.5 x 60.5 cm
  • 280L Pot: 91.3 x 55 cm
  • 300L Bag: 88 x 63.8 cm
  • 400L Bag: 99 x 66 cm
  • 500L Bag: 122 x 66 cm
  • 1000L Bag: 146.3 x 71.5 cm
  • 2000L Bag: 176 x 82.5 cm

Follow these dimensions to ensure a smooth planting process and optimal growth for your new tree.

7

Caring For Your Bursaria spinosa

Caring for Bursaria spinosa

  • Watering: Regular watering is recommended during dry periods.
  • Mulching: A layer of organic mulch around the base assists in moisture retention.
  • Pruning: Occasional pruning to maintain the desired shape or remove dead branches.
8

Frequently Asked Questions About Bursaria spinosa

Frequently Asked Questions

  • What attracts butterflies to Bursaria spinosa? The sweetly fragrant flowers of the Sweet Bursaria are known to attract a variety of butterflies.
  • Is it suitable for coastal gardens? Yes, the Australian Blackthorn is tolerant of coastal conditions, making it ideal for seaside gardens.
  • Can it thrive in shaded areas? While it prefers full sun, it can also grow in partial shade.

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