Blue ash (Fraxinus quadrangulata)
Also known as: Blue Ash
The American lotus (Nelumbo lutea) is a native flowering plant found in the midwestern United States. It thrives in wetlands and ponds, providing a crucial food source for frogs.
In This Article
Attributes of Blue ash
Lifespan
Perennial
Plant Type
Tree
Plant Height
10 m to 25 m
Spread
1.8 m
Leaf Color
Green Blue Yellow Gold
Flower Size
2.5 cm
Flower Color
Yellow Green Purple Lavender
Images of Blue ash
Quickly Identify Blue ash
1
New stems noticeably four-sided, aiding in quick identification.
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Compound leaves with 5-11 leaflets, turning pale yellow in fall.
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Tiny greenish or purplish flowers in dense panicles without petals.
4
Distinctive winged samaras in clusters, facilitating wind dispersal.
5
Robust trunk with squared appearance, gray bark with furrows and ridges.
Scientific Classification of Blue ash
Phylum
Vascular plants
Class
Dicotyledons
Order
Lamiales
Family
Olive
Genus
Ashes
Species
Blue ash
Planting and Growing of Blue ash
Care Difficulty
Easy
Watering Schedule
Every 2 days
Sunlight Requirements
Full sun
Sunshine Duration
6-10 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
How to Water Blue ash?
For Fraxinus quadrangulata, ensure the soil remains consistently moist but not waterlogged. Water until it penetrates deep into the soil, around 500 ml each time, allowing it to reach the roots but ensuring surface drying between waterings.
What are the symptoms of an underwatered Blue ash?
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What should I do if my Blue ash is not getting enough water?
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What are the symptoms of an overwatered Blue ash?
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How to save an overwatered Blue ash?
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What Are the Sunlight Requirements for Blue ash?
Fraxinus quadrangulata ideally requires full to partial sun, translating to 6 to 8 hours of direct sunlight. This range supports its growth and vitality, enhancing its aesthetic appeal.
What is the ideal light exposure for Fraxinus quadrangulata?
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How can I achieve the ideal lighting conditions for this plant?
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What are the benefits of providing ideal lighting conditions?
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What Is the Ideal Temperature Range for Blue ash?
For the optimal growth of Fraxinus quadrangulata, also known as Blue Ash, it's crucial to maintain a temperature range between 60°F and 75°F. This range facilitates proper photosynthesis and supports overall plant health, ensuring the ash tree develops strong, disease-resistant foliage and robust growth. Such conditions are typically found during mild spring and early fall seasons.
What Soil is Best for Blue ash?
Fraxinus quadrangulata, commonly known as Blue Ash, thrives in well-drained soil conditions. Proper drainage prevents root rot and ensures the tree's roots receive adequate oxygen, promoting healthy growth and stability in the landscape. This species benefits from nutrient-rich soil that provides essential nutrients for optimal growth. A fertile soil boosts the tree's resilience to diseases and enhances leaf and wood production. While Fraxinus quadrangulata can tolerate occasional dryness, it prefers soil with moderate moisture levels. Consistent moisture supports vigorous growth, healthy foliage, and a robust root system.
How to Fertilize Blue ash?
Fraxinus quadrangulata requires careful attention to fertilization. The recommended amount of liquid fertilizer is approximately 250 ml per application per tree, ensuring the nutrients reach deep into the soil. For solid fertilizers, apply 100 grams around the base of the tree annually to stimulate healthy growth and root development.
How to Prune Blue ash?
Begin by inspecting the tree and identifying branches that are dead, diseased, or crossing. Start pruning from the base of the tree, using clean and sharp tools. Cut back any crossing branches to prevent rubbing and damage. Make clean cuts just above the branch collar, taking care not to leave stubs. This careful approach ensures the tree's health and encourages new growth in the spring.
How to Propagate Blue ash plant?
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Fraxinus quadrangulata seeds require a cold stratification period to simulate winter conditions. Place seeds in moist sand in a refrigerator for 60-90 days to break dormancy.
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After stratification, sow seeds in seed trays filled with sterile seed-starting mix. Ensure they are not planted too deeply—cover lightly with soil and water gently.
3
Keep the soil consistently moist but not waterlogged. This is crucial for seed germination and should be monitored regularly to prevent drying out.
How to Repot Blue ash plant?
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The ideal time to repot Fraxinus quadrangulata is when you see signs of stunted growth or roots emerging from the drainage holes. These indicators suggest that the plant has outgrown its current pot and requires a new space to expand.
2
Select a pot that is approximately 2-4 inches larger in diameter than the current one. This allows ample space for root development while preventing excessive moisture retention, reducing the risk of root rot.
3
Opt for a well-draining loamy soil mix that retains moisture yet drains efficiently. This type of soil supports healthy root growth, enhances nutrient uptake, and helps in maintaining the right moisture balance.
