Xanthorrhoea

$13,000.00
$13,000.00
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Description
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Xanthorrhoea species, iconic to Australia, are known for their extraordinary form - a thick, woody trunk crowned with a dense tuft of grass-like foliage. The common name, Grass Tree, is derived from their grass-like leaves, and their remarkable ability to survive fires. They are not only a striking sculptural element in the landscape but are also of cultural significance to Indigenous Australians.

Common Name: Grass Tree
Mature Height: Depending on the species, can range from 1 to 6 meters in height, with very slow growth rates.
Mature Width: The leaf crown can spread 1-3 meters across.
Spacing: Plant at least 2-3 meters apart from other plants, as they need space to accommodate the spread of their foliage.
Foliage: Long, linear, grass-like leaves that form a skirt around the trunk.
Flowering Period: When mature, they produce a spectacular flower spike that can be up to 2 meters in height, with white to creamy flowers that attract nectar-feeding birds and insects.
Form/Habit: A singular trunk with a tufted head of grass-like foliage. The trunk is often blackened by bushfires, hence the name Blackboy.
Uses: Used as a feature plant in gardens and landscaping, their dramatic appearance is a highlight in native and xeriscape gardens.
Evergreen/Deciduous: Evergreen, providing year-round interest.
Tolerates: Very tolerant of poor soils, drought, and fire.
Drought Hardy: Extremely drought-resistant once established.
Sun: Prefers full sun but can tolerate light shade.
Maintenance: Very low; requires minimal pruning and care once established.

Additional Information

  • Soil Preferences: Thrives in well-drained, sandy or gravelly soils. Avoid soils that retain moisture.
  • Watering Needs: Water sparingly; too much water, especially in poorly drained soils, can lead to root rot.
  • Wildlife Attraction: Flowers attract a host of wildlife, including bees, butterflies, and birds.
  • Propagation: Generally propagated from seed but can be slow and requires patience. Division of clumps is possible but can be difficult and should be done by experts.
  • Pests/Diseases: Resistant to most pests and diseases. Root rot can be a problem if the soil is not well-drained or if overwatered.
  • Landscape Design Tips: Plant as a standalone feature or amongst low-lying shrubs to create a varied height landscape. They can also be used effectively in rockeries.

Description

Xanthorrhoea species, iconic to Australia, are known for their extraordinary form - a thick, woody trunk crowned with a dense tuft of grass-like foliage. The common name, Grass Tree, is derived from their grass-like leaves, and their remarkable ability to survive fires. They are not only a striking sculptural element in the landscape but are also of cultural significance to Indigenous Australians.

Common Name: Grass Tree
Mature Height: Depending on the species, can range from 1 to 6 meters in height, with very slow growth rates.
Mature Width: The leaf crown can spread 1-3 meters across.
Spacing: Plant at least 2-3 meters apart from other plants, as they need space to accommodate the spread of their foliage.
Foliage: Long, linear, grass-like leaves that form a skirt around the trunk.
Flowering Period: When mature, they produce a spectacular flower spike that can be up to 2 meters in height, with white to creamy flowers that attract nectar-feeding birds and insects.
Form/Habit: A singular trunk with a tufted head of grass-like foliage. The trunk is often blackened by bushfires, hence the name Blackboy.
Uses: Used as a feature plant in gardens and landscaping, their dramatic appearance is a highlight in native and xeriscape gardens.
Evergreen/Deciduous: Evergreen, providing year-round interest.
Tolerates: Very tolerant of poor soils, drought, and fire.
Drought Hardy: Extremely drought-resistant once established.
Sun: Prefers full sun but can tolerate light shade.
Maintenance: Very low; requires minimal pruning and care once established.

Additional Information

  • Soil Preferences: Thrives in well-drained, sandy or gravelly soils. Avoid soils that retain moisture.
  • Watering Needs: Water sparingly; too much water, especially in poorly drained soils, can lead to root rot.
  • Wildlife Attraction: Flowers attract a host of wildlife, including bees, butterflies, and birds.
  • Propagation: Generally propagated from seed but can be slow and requires patience. Division of clumps is possible but can be difficult and should be done by experts.
  • Pests/Diseases: Resistant to most pests and diseases. Root rot can be a problem if the soil is not well-drained or if overwatered.
  • Landscape Design Tips: Plant as a standalone feature or amongst low-lying shrubs to create a varied height landscape. They can also be used effectively in rockeries.

Additional Information You Should Know About Xanthorrhoea

1

Height Guide For Xanthorrhoea

2

Why Choose Xanthorrhoea For Your Garden?

3

How To Grow Xanthorrhoea In Different Soil Types

4

Planting Your Xanthorrhoea: Ensuring A Strong Start

Planting Your Grass Tree:

  1. Select the Right Site: Full sun with excellent drainage is crucial for healthy growth.
  2. Prepare the Soil: Loosen the soil and ensure it is free-draining. Consider raising the planting area to improve drainage if necessary.
  3. Planting: Plant at the same depth it was in the container. Avoid burying the trunk any deeper than it was previously.
  4. Backfill: Use the same soil removed from the hole, no fertilizers are required at planting.
  5. Water Thoroughly: Water in after planting, but ensure not to waterlog the soil.
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 Xanthorrhoea 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 Xanthorrhoea

Caring For Your Grass Tree:

  1. Watering: Be cautious with watering; overwatering can kill the plant. Once established, rainwater is often enough.
  2. Pruning: Minimal pruning is required. Old foliage can be trimmed to tidy up the plant if desired.
  3. Fertilizing: Generally not required. If necessary, use a slow-release low-phosphorus native plant fertilizer.
  4. Monitoring: Watch for signs of rot at the base which can indicate overwatering. Ensure good air flow around the plant.
  5. Protection: Grass Trees are very hardy but can be affected by extreme frost. Use frost cloth to protect if necessary.

By following these guidelines, your Xanthorrhoea should thrive, adding a uniquely Australian character to your garden for many years, possibly centuries.

8

Frequently Asked Questions About Xanthorrhoea

Frequently Asked Questions:

Q: How fast do Grass Trees grow?
A: Growth is extremely slow, often only a few centimeters per year.

Q: When is the best time to plant Grass Trees?
A: Plant in the cooler months, allowing time to establish before the heat of summer.

Q: How much water does my Grass Tree need?
A: Initially, weekly watering is beneficial. Once established, Grass Trees require very little water.

Q: Can I plant Grass Trees in a shaded area?
A: They prefer full sun but can tolerate partial shade, although growth may be even slower.

Q: When will my Grass Tree flower?
A: Flowering can take many years; some specimens won’t flower until they are at least 20 years old.

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