Iberian meadowsweet (Spiraea hypericifolia)
Also known as: St. John's wort-leaved spirea
The shrub you're referring to is a deciduous type that typically grows to a height of 50 to 100 cm. It features many arching branches that lend the plant a naturally cascading or hanging appearance.
In This Article
Attributes of Iberian meadowsweet
Lifespan
Perennial
Plant Type
Shrub
Plant Height
1.5 m
Spread
90 cm to 1.5 m
Leaf Color
Green
Flower Size
5 mm to 7 mm
Flower Color
White
Images of Iberian meadowsweet
Quickly Identify Iberian meadowsweet
1
Identify Spiraea hypericifolia by its tiny white flowers clustered on arching stems, lanceolate leaves that resemble those of Hypericum plants, and its shrubby growth habit.
Scientific Classification of Iberian meadowsweet
Phylum
Vascular plants
Class
Dicotyledons
Order
Rosales
Family
Rose
Genus
Spirea
Species
Iberian meadowsweet
Planting and Growing of Iberian meadowsweet
Care Difficulty
Easy
Watering Schedule
Every 2 days
Sunlight Requirements
Full sun
Sunshine Duration
4-8 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 Iberian meadowsweet?
Spiraea hypericifolia prefers moist but well-drained soil. It's essential to ensure that the soil is evenly moist, rather than soggy or dry. You should water the plant until the soil feels evenly damp to about 2 inches deep, which generally equates to approximately 500 milliliters per watering session.
What are the symptoms of an underwatered Iberian meadowsweet?
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What should I do if my Iberian meadowsweet is not getting enough water?
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What are the symptoms of an overwatered Iberian meadowsweet?
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How to save an overwatered Iberian meadowsweet?
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What Are the Sunlight Requirements for Iberian meadowsweet?
Spiraea hypericifolia is best suited for full to partial sun, favoring between 6 to 8 hours of good quality light daily. Proper lighting ensures vibrant growth, abundant flowering, and overall plant health.
More About Sunlight Requirements Techniques→
How much sunlight does Spiraea hypericifolia need?
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What are the solutions for achieving ideal lighting?
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What are the benefits of providing ideal lighting?
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What Is the Ideal Temperature Range for Iberian meadowsweet?
Spiraea hypericifolia thrives best in a temperature range from 60°F to 75°F. These conditions facilitate optimal photosynthesis and nutrient uptake, allowing the plant to flourish with abundant blooms. Maintaining this temperature range ensures robust growth and health.
What Soil is Best for Iberian meadowsweet?
Spiraea hypericifolia thrives in well-drained soils that prevent root rot and ensure the absorption of needed nutrients. This allows the plant to grow vigorously and produce beautiful blooms. The plant grows best in moderately fertile soils. Soils rich in organic matter support healthy plant growth by supplying essential minerals and nutrients. While Spiraea hypericifolia requires well-draining soil, it also appreciates soils that can retain moisture. This helps maintain a consistent moisture level, reducing stress during dry periods.
How to Fertilize Iberian meadowsweet?
For Spiraea hypericifolia, it's important to apply fertilizers judiciously to encourage healthy growth. Generally, use a balanced 10-10-10 NPK fertilizer, applying around 1 tablespoon per gallon of water for liquid fertilizers and 1 cup per 10 square feet for slow-release granules.
How to Prune Iberian meadowsweet?
Before you start pruning, inspect the bush to identify dead, damaged, or diseased branches. Removing these will prevent disease spread and encourage healthier growth across the plant. During pruning, it's essential to cut out any crowded branches in the center of the shrub to improve air circulation. This practice helps prevent fungal infections and allows sunlight to reach more of the plant. After the essential pruning, trim the outer parts of the shrub to maintain a pleasing and balanced shape. Focus on uneven areas and ensure a natural look while cutting back growth that disrupts the desired outline.
More About Pruning Techniques→
How to Propagate Iberian meadowsweet plant?
1
Harvest seeds from mature Spiraea hypericifolia plants in late spring. Ensure seeds are fully dry before storing them for autumn sowing.
2
Select healthy, semi-hardwood stems during early summer. Cut 4-6 inch sections just below a leaf node for the best rooting results.
3
In early spring, dig out established clumps. Divide the roots into smaller sections, ensuring each has a part of the root system and shoots.
How to Repot Iberian meadowsweet plant?
1
Spiraea hypericifolia should be repotted when roots begin to circle the pot or emerge from the drainage holes. This indicates they need more space to grow. The ideal time to perform repotting is in early spring when the plant starts its active growth phase. This timing allows the plant to adjust to its new environment and benefit from increased nutrient access with the fresh soil.
2
Choose a pot that is just one size larger than the current one. A pot that is too large can hold excess moisture, which could lead to root rot. The new pot should have sufficient drainage holes to prevent water logging. A ceramic or clay pot can help in maintaining optimal soil moisture and temperature, ensuring a healthy environment for the roots.
3
Opt for a well-draining mixed soil containing some sand or perlite, and organic matter like peat moss. This combination ensures good aeration and effective drainage, reducing the risk of overwatering. The soil should mimic the plant's natural habitat, promoting robust growth and floral abundance.
