Tiarella Plant Care

Are you looking for plantlings for your shaded garden? Then, the Tiarella or foamflower is just the suitable foliage to grow in your yard. When you see this flowering plant with its dainty flowers, you think of a woodland garden.

The plant lights up various nooks and crannies in the landscaping if grown as an outdoor plant. It is fresh and inviting regardless of the humidity and heat. Just make sure that it isn’t too sunny in the garden.

Today, we are going to help you take care of your foamflower plants.

What is Tiarella Plant?

The Tiarella is a charming wildflower that loves growing in the shade. The plant produces sprays of small white flowers on top of the green foliage. Recently, there have been many of these cultivars developed. What better time than now to collect them?

The name foamflower originates from the foamy white-pinkish shades on the long stems in spring. If you want a perfect ground cover that is trouble-free to care for and spectacular, nothing comes close to foam flower. Even after the bloom of six weeks, it remains attractive all year round. Sometimes the glossy leaves have reddish variegation with veins and spots found in the center.

While in mild winter areas, you notice the foliage has a semi-evergreen leaf turning reddish bronze in autumn. You find the plant growing in North America and East Asia woodlands.

The native wildflower spreads fast by runners forming a dense mound of foliage. When mass-planted, they are attractive, and you can combine them with groupings of another shade such as coral bells, hostas, Solomon’s seal, and ferns. While the Tiarella species needs little maintenance, it helps to snip off the spent flower after they bloom to provide it with a neat appearance.

Foam Flower Native Plants Care

Tiarella Plant

Soil Requirement for Tiarella

For your native plant such as the foam flower, it helps to provide a moisture-retaining soil of humusy loam or chalk. The ground needs to drain well as too much water can lead to root rot. So whether you plant your foam flowers in the ground or a container, make sure the pot drains well.

White Flowers Lighting Needs

Tiarella lighting condition

While your foam flower can grow in full shade, it helps to grow them in partial shade as it needs the sun for the best blooms possible. The best sun you can provide your foam flowers is the morning sun. In the Tiarella species, you find two types. First, you get the clumping and then the trailing varieties.

The trailing type grows as a runner creating a dense mat preventing weeds from growing.

Watering Your Tiarella

For your foamflower to thrive, it needs moist conditions. While the white flowers can withstand short droughts, it does need watering during extended droughts. So when grown outside, make sure it has well-draining soil to prevent waterlogging, and the same applies when grown as an indoor plant.

At least when you grow it as a houseplant, you can check the loam using the finger method to determine if the ground is not too wet. During summer, you will need to water your plant more than in winter.

Temperature and Humidity

If you live in the USDA hardiness zones eight and above, you may find that this cold-hardy plant does not enjoy hot summers. Instead, your plant prefers partial to full shade and only needs direct sunlight for up to six hours a day. Yet, it still prefers reasonable temperatures for up to two hours a day. So if you live in colder areas where the humidity is not too high, your plant will thrive.

Fertilizer Needs

If you grow your foamflower in the rights loamy soil, it does not need feeding. Yet, it can still benefit from applying water-soluble fertilizer in the growing season every two weeks.

Propagation of the Tiarella

The easiest way to propagate your foam flower is with seeds or by dividing the rhizomes. As the plant is self-sterile, it helps to plant different species. You notice the first blooms in summer as it attracts butterflies to pollinate.

You will find the seeds maturing fast at the top of the stalk. After six weeks, you notice the seed pods turning brown and splitting open easily to retrieve the black seeds. You can plant them immediately or clean and dry them placed in a cool place.

The best time to divide the rhizomes of the foamflower is in late fall. You can plant the roots about two feet apart as they will fill in the open space. Or you can remove the above-ground runners and replant them again. To help them establish, you can apply a rooting hormone before placing them back in the ground.

USDA Growth Zone

The foamflower is a plant hardy in USDA zones four to nine. The foliage works well as a ground cover, and it also creates a beautiful display in rock gardens, borders, containers, and edgings.

Planting Your Foam Flower

To plant your heartleaf foamflower, the best time to do this is in spring. You can plant the foliage in containers or your garden. When sown in the yard, make sure to keep a distance of 12 inches in the bed or any other desired place. You can plant up to eight of these plants in 10 square feet as it forms a dense carpet.

Tiarella Varieties and Similar Plants

The great thing about the Tiarella is that you can find different species to grow together. Here are some of the species found.

Tiarella polyphylla

Tiarella polyphylla

This is a clump-forming perennial that spreads with stolons and has a hear-shaped scalloped green leaf. Once you have it planted in your woodland garden, it produces a white-tinged pink flower. It is evergreen but can turn reddish in the fall. Similar to the other foamflowers, it needs partial shade with moist and well-drained soil to thrive.

Wherry’s Foamflower

Wherry's Foamflower

The Tiarella wherryi is another herbaceous perennial that forms clumps with a three-lobed purple tinted leaf. It also produces small white or pinkish flowers in late spring.

Tiarella trifoliata 

Tiarella trifoliata

The plant is a perennial herb that grows in spring. The flowers are bell-shaped in white with elongated leafless panicles. It has basal-type leaves.

Tiarella Diseases & Pests

The evergreen foliage rarely gets invaded with pests or diseases. The only nuisance is slugs and snails that can cause problems. Further, the plant thrives on moisture and can only tolerate brief periods of droughts. But what can cause severe pain is wet feet leading to root rot.

The best is to provide your plant with well-drained clay ground.

Frequently Asked Questions

Your Tiarella is low-maintenance foliage that remains undivided for many years in your garden without losing vigor. If your plant becomes tattered due to weather conditions, you can cut them back but not necessary.

In appearance, the Tiarella wherryi and Tiarella cardifolia are similar. Yet, the latter has a southern distribution more tolerant to humidity and heat. The Tiarella wherryi is also a clumper compared to the Tiarella cardifolia that is stoloniferous. Thus, the Tiarella wherryi increases in girth from its underground rhizomes. So it does not initiate runners compared to the other species.

The foamflower is a clump-forming perennial that spreads by stolons (runners) to form dense wide clumps of foliage. The plant remains evergreen in mild winters but can turn to a reddish-bronze shade in fall to winter.

The Tiarella you can find available at your local nurseries, or you can buy them from different retailers online. Still, the excellent news is you need not leave your chair as Plantly sells a wide selection of the species here.

Whether you want to buy, sell or simply reach out to other plant enthusiasts, Plantly is the right place to be!

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