Heucherella Onyx

Foamy Bells

Sorry Sold Out

Glossy chocolate-black foliage. Airy white flowers on dark stems.

Tolerant of both heat and humidity, the glossy chocolate-black foliage stays neat and tidy all season long. Foliage undersides flash violet-red. Airy white flowers on dark stems open from pink buds.

Heucherella Onyx is compact and tidy with vigorous growth. A cross of Heuchera and Tiarella. Foamy Bells form an expanding mound flowering late spring into summer with strong leaf colors and great flowers. Versatile!

Note: This is an archive page preserved for informational use.
Cultural and Growing Info is provided below.

Glossy chocolate-black foliage. Airy white flowers on dark stems.

Tolerant of both heat and humidity, the glossy chocolate-black foliage stays neat and tidy all season long. Foliage undersides flash violet-red. Airy white flowers on dark stems open from pink buds.

Heucherella Onyx is compact and tidy with vigorous growth. A cross of Heuchera and Tiarella. Foamy Bells form an expanding mound flowering late spring into summer with strong leaf colors and great flowers. Versatile!

Code HEON

Patent PP29,926

Plant Type Perennials

Species

Height Short 10" (15" in flower)

Spacing Plant 16" apart

Bloom Time Early Summer to Mid-Summer

Sun / Shade Full Sun to Full Shade

Zones 4-9

Soil Type Normal

Water Needs Medium

Sold In Plantable Pots (3.5x3.5x4")

Special Features

  • Attracts Butterflies
  • Attracts Hummingbirds
  • Dry Shade Tolerant
  • Groundcovers
  • Humidity Tolerant
  • OK in Containers

Heucherella General Information

Heucherella are an interesting cross of Heuchera and Tiarella. Forms an expanding mound flowering in late spring into early summer with strong leaf colors and great flowers. Versatile - excelling in the north, as well as the heat and humidity of the South. If grown in full sun, will need more moisture. Idaho has restricted all potted plant material from being shipped into Idaho at this time.

Heucherella Plant Care

Remove old stems of faded flowers for additional bloom and to tidy up so that the attractive foliage can be appreciated. Can be divided every 3-4 years in early spring. Remove and discard the old woody parts of the crown. In cold climates, winter mulch applied after the ground freezes will help prevent root heaving.

Plantable Pots

Our plants are grown in 3.5x3.5x4” plantable pots. Made from 100% biodegradable coconut husk fibers (coir), these pots have tremendous advantages over plastic pots. With better air exchange, this "breathable" pot fosters robust root growth and reduces transplant shock since you can plant the pots directly in the ground. The pot naturally becomes part of the soil on its own over time—no composting required—and since they're made from a renewable resource that requires very little energy, they're earth-friendly too!

100% Guarantee

We offer a 100% guarantee for all our perennials to reach you in good condition and to grow. If you're not satisfied, we'll reship or refund immediately. Please don't hesitate to contact us if you have questions or concerns—we share your passion for gardening and want your new plants to thrive in your border!

Shipping Details

We use custom, earth-friendly packaging to make sure your order arrives in great condition, and we ship based on the best planting time for your growing zone (see the approximate dates below), unless otherwise indicated at checkout. If you wish, you can indicate a specific ship date during checkout.

Spring

  • Zone 3, 4: Early to Mid May
  • Zone 5: Late April to Early May
  • Zone 6: Mid to Late April
  • Zone 7: Early to Mid April
  • Zone 8: Late March to Early April
  • Zone 9, 10: Late March

Fall

  • Zone 2, 3, 4: Early September
  • Zone 5: Early to Mid September
  • Zone 6: Mid September
  • Zone 7: Mid to Late September
  • Zone 8, 9, 10: Late September to Early October

Trustpilot