Stoplight Foamflower
Heucherella x hybrida 'Stoplight'
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
16 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8, 9
Water
Keep evenly moist
Humidity
Prefers moderate humidity
Lifespan
Perennial
Native To
Cultivated hybrid
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Heucherella, a hybrid between Heuchera and Tiarella, are mounding, evergreen to semi-evergreen perennials grown primarily for their colorful and interestingly shaped foliage. This cultivar features large, maple-shaped, chartreuse-yellow leaves with a dramatic dark red center blotch. Spikes of small, white, star-shaped flowers appear in spring.
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck young plants into well-draining soil in early spring.
- Mist cuttings regularly to maintain humidity and root in 4‑6 weeks.
- Water consistently, keeping soil moist but not waterlogged.
- Apply a balanced fertilizer every 6 weeks during growing season.
- Deadhead spent flowers to encourage new blooms.
- Mulch around the plant to retain moisture and suppress weeds.
Pro Tip
Place in partial shade for vibrant foliage and avoid scorching sun.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Apply fertilizer in spring and summer
- Mulch to conserve moisture
Don't
- Overwater to prevent root rot ❌
- Expose to full, harsh sun 🌞
- Neglect pruning dead or damaged leaves
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Mulch | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Stoplight Foamflower questions
What zones can Stoplight Foamflower grow in?
Stoplight Foamflower is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Stoplight Foamflower deer resistant?
Yes — Stoplight Foamflower is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Stoplight Foamflower bloom?
Stoplight Foamflower typically blooms in late spring to early summer through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Stoplight Foamflower need full sun?
Stoplight Foamflower does best in part shade.
More Heucherella to compare
Sweet Tea Foamy Bells
Heucherella americana 'Sweet Tea'
Copper King Foamy Bells
Heucherella x brizoides 'Copper King'
Peach Tea Foamy Bells
Heucherella x hybrida 'Peach Tea'
Foamy Bells
Heucherella x hybrida 'Silver Streak'
Red Rover Foamy Bells
Heucherella tigridia 'Red Rover'
Pumpkin Spice Foamy Bells
Heucherella tiarella 'Pumpkin Spice'
Keep exploring
Explore the genus
Collections featuring this plant
Grow Stoplight Foamflower with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
