The Foam Flower (Tiarella 'Tntia041' STARGAZER MERCURY) is a perennial that features delicate, mounding foliage, and clusters of white blooms with a bright pink center. Easily grown in moist, organically rich, well-drained soils with light shade. Ideal for woodland gardens or along shady foundations. It is a low maintenance plant, requiring minimal fertilizer and no deadheading. Leaves have silver-lined veining with dark purple tips. Unusually shaped flowers remain attractive throughout the flowering season. Provides seasonal interest and a lovely display of texture to any garden or outdoor space.
Read MorePlant Care Essentials:
Plant Profile:
- Scientific Name: Tiarella 'Tntia041' STARGAZER MERCURY
- Size: 0.75 to 1.50 feet
- Plant Family: Saxifragaceae
- Care: Medium
- Drought Tolerant: Yes
- Poisonous To Humans: No
- Plant Type: Shrub
- Light Requirements: part shade
- Pruning Month: March
- Fruits: No
- Tropical: No
- Indoor: Yes
- Flower Color: Pink
- Plant Origin: United States
- Growth Rate: Low
- Poisonous To Pets: No
- Edible Fruit: No
Care Instructions:
Tiarella ‘Tntia041’ STARGAZER MERCURY, commonly known as Foam Flower, is a perennial plant admired for its striking foliage and delicate, star-shaped flowers. This variety is noted for its unique, deeply lobed leaves with dark central markings and clusters of creamy white flowers that bloom in spring. It is an excellent choice for shaded gardens, woodland settings, and borders, adding texture and color throughout the growing season.
Light
Foam Flower thrives in partial to full shade, making it ideal for shaded garden areas. It can tolerate some morning sun, but too much direct sunlight, especially in the heat of the day, can cause the leaves to scorch. For best results, place it in a location with filtered or dappled sunlight.
Water
Water your Foam Flower regularly, keeping the soil consistently moist but not waterlogged. During the growing season (spring through summer), ensure the soil remains evenly moist, especially during dry periods. Reduce watering slightly in the fall and winter. Avoid letting the soil dry out completely, as this can stress the plant and reduce its vigor.
Soil
Foam Flower prefers well-draining, rich, and loamy soil. Incorporating organic matter, such as compost or leaf mold, into the soil will improve its fertility and moisture retention. If planting in containers, use a high-quality potting mix with good drainage to prevent waterlogging.
Temperature
The optimal temperature range for Foam Flower is between 60°F and 75°F (16°C to 24°C). It is hardy in USDA zones 4-9, meaning it can withstand cooler temperatures and light frost. In hotter climates, ensure it is protected from excessive heat, which can cause the plant to wilt.
Humidity
Foam Flower prefers moderate to high humidity levels. It thrives in environments with natural humidity, but if grown indoors or in a dry climate, occasional misting or placing the plant on a humidity tray can help maintain adequate moisture levels around the foliage.
Fertilizer
Feed your Foam Flower with a balanced, slow-release fertilizer in early spring as new growth begins. This will provide the necessary nutrients for healthy foliage and robust flowering. A light application of compost or organic matter can also help maintain soil fertility throughout the growing season. Avoid over-fertilizing, as this can lead to lush foliage at the expense of flowers.
Best Placement Ideas
- Woodland Gardens: Foam Flower is ideal for woodland gardens, where its shade tolerance and attractive foliage can thrive under the canopy of trees. Plant it in groups for a naturalized effect, complementing other shade-loving perennials.
- Shaded Borders: Foam Flower works well in shaded borders, where its low-growing habit can create a lush ground cover. Pair it with other shade-tolerant plants for a layered, textured garden bed.
- Containers: This plant thrives in containers, where its unique foliage and delicate flowers can add interest to shaded patios, balconies, or entryways. Ensure the container has good drainage, and place it in a spot with partial to full shade.
Common Issues
Pests: Foam Flower is generally resistant to pests but can occasionally attract slugs or snails, particularly in damp conditions. Regularly inspect the leaves for any signs of damage, such as holes or slime trails. Hand-picking or using organic slug repellents can help control these pests.
Diseases: Overwatering or poor air circulation can lead to fungal diseases such as powdery mildew, root rot, or leaf spot. Ensure the soil is well-draining and avoid letting the plant sit in water. If you notice discolored or wilting leaves, it may indicate a fungal issue. Improve air circulation, avoid overhead watering, and remove any affected foliage to reduce the risk of spreading disease.
Things to Watch Out For
Watch for signs of stress, such as wilting or yellowing leaves, which may indicate improper watering, low humidity, or excessive sunlight. If the plant’s growth slows or the leaves start to lose their vibrant color, consider adjusting its care routine to better meet its needs. Additionally, Foam Flower can become leggy if it doesn’t receive enough light, so regular pruning may be necessary to keep it looking full and healthy.
Propagation Tips
Propagation Method: Foam Flower is easily propagated through division. To propagate by division, dig up the plant in early spring or fall and carefully separate the clumps into smaller sections, each with roots attached. Replant the divisions at the same depth as the original plant in well-prepared soil.
Best Time to Propagate: The best time to propagate Foam Flower is in early spring or fall when the plant is not in active bloom. This timing allows the new plants to establish roots and grow during the most favorable conditions.
Maintenance Tips
Pruning: Pruning your Foam Flower involves removing spent flower stalks after blooming to encourage a tidy appearance and potentially a second bloom. Additionally, trim back any damaged or leggy foliage to maintain the plant’s shape and vigor. Use clean, sharp scissors or pruning shears to avoid damaging the plant.
Mulching: Apply a layer of mulch around the base of the plant in early spring to help retain soil moisture, suppress weeds, and regulate soil temperature. In colder climates, mulching in late fall can also provide additional insulation for the roots during winter. Be sure to keep the mulch away from the crown of the plant to prevent rot.
Did You Know?
Tiarella ‘Tntia041’ STARGAZER MERCURY features unique star-shaped white flowers and deeply lobed green leaves. This shade-loving perennial is perfect for woodland gardens, borders, or containers, adding a whimsical touch with its delicate, airy blooms.
Popular Questions
This property is mostly wooded and sits high on a hilltop overlooking the Mohawk River Valley. Located right in the heart of Upstate NYs Amish farm CountryThis property is mostly wooded and sits high on a hilltop overlooking the Mohawk River Valley. Located right in the heart of Upstate NYs Amish farm Country
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