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Japanese yew (Taxus cuspidata) is a popular evergreen shrub valued for its lush foliage and versatility in landscape design. Proper fertilization throughout the year ensures healthy growth, vibrant color, and disease resistance. This month-by-month guide provides essential tips for fertilizing your Japanese yew to keep it thriving in every season.
Early Spring (March – April)
As the weather warms, Japanese yew begins active growth. Apply a balanced, slow-release fertilizer with equal parts nitrogen, phosphorus, and potassium. This promotes new growth and strengthens roots after winter dormancy. Ensure the soil is moist before fertilizing to prevent root burn.
Fertilization Tips for March
- Use a balanced fertilizer (e.g., 10-10-10).
- Apply around the drip line of the shrub.
- Water thoroughly after fertilizing.
Fertilization Tips for April
- Repeat the application if growth appears slow.
- Consider adding organic compost for improved soil health.
- Monitor for signs of over-fertilization, such as yellowing leaves.
Late Spring to Early Summer (May – June)
This period supports vigorous growth. Continue fertilization with a balanced or slightly nitrogen-rich fertilizer to promote lush foliage. Be cautious not to over-fertilize, which can lead to weak, leggy growth.
Fertilization Tips for May
- Apply fertilizer every 6-8 weeks if growth is active.
- Use liquid fertilizer for quick nutrient absorption.
- Ensure good drainage to prevent root rot.
Fertilization Tips for June
- Reduce fertilization frequency as growth stabilizes.
- Maintain consistent watering and mulching.
- Watch for pest and disease signs.
Mid to Late Summer (July – August)
During the hottest months, Japanese yew needs less fertilizer. Focus on maintaining soil moisture and health rather than feeding. If necessary, apply a diluted liquid fertilizer sparingly to support ongoing growth.
Fertilization Tips for July
- Limit fertilization to avoid encouraging weak, tender growth.
- Mulch to conserve moisture and regulate soil temperature.
- Monitor for signs of stress or pests.
Fertilization Tips for August
- Apply a light dose of fertilizer if growth appears sluggish.
- Ensure adequate watering during hot spells.
- Prepare the plant for the upcoming fall season.
Fall (September – October)
As days shorten and temperatures cool, Japanese yew prepares for dormancy. Fertilize with a low-nitrogen formula to promote root development and reduce excessive top growth. This helps the shrub store energy for winter.
Fertilization Tips for September
- Switch to a fertilizer with lower nitrogen content (e.g., 5-10-10).
- Apply in early September to support root growth.
- Reduce watering frequency as growth slows.
Fertilization Tips for October
- Stop fertilizing about 4-6 weeks before expected frost.
- Apply a layer of mulch to protect roots.
- Inspect for pests and disease before winter.
Winter (November – February)
Japanese yew generally enters dormancy during winter. Fertilization is not necessary during this period. Focus on protecting the plant from harsh conditions, such as cold winds and frost, by mulching and covering if needed.
Winter Care Tips
- Apply mulch around the base to insulate roots.
- Ensure proper drainage to prevent waterlogging.
- Minimize disturbance to the plant.
By following this month-by-month fertilization schedule, you can maintain a healthy, vibrant Japanese yew throughout the year. Proper nutrition combined with good cultural practices will ensure your shrub remains a beautiful feature in your landscape for years to come.