Tiarella – Cutting Edge
Native to North America
This woodland perennial thrives in partial to full shade and humus-rich, moisture retentive soil. It is evergreen in many climates.
Maintenance Category Easy
Water Category Average
Flower Form Border Plant, Container, Cut Flower, Edging Plant, Landscape, Mass Planting
Soil Fertility Average Soil, Fertile Soil
Soil PH Category Acidic Soil, Neutral Soil
pH A - pH 5.5 - 5.8
EC (2:1 Extraction Method) 0.6 - 0.9
Fertilization 150 - 200
Light Requirements Medium
Water Requirements Moderate to Moist
Rooting Out Temperature 65 - 72° Fahrenheit
Growing On Temperature 60 - 70° Fahrenheit
Holding Temperature 40 - 50° Fahrenheit
Planting and Timing Information
Early Spring through Fall Finish. 4" to 1 gallon pots: 1 PPP. 10-12" pots 3 PPP.
Finishing Times [weeks]
4-5" and Quart Pot : 4-6
6" and Gallon Pot : 5-7
7-9" Pot : 7-9
10-12" and Two Gallon Pot : 10-12
Pinching and Growth Regulators
No pinching or growth regulators needed.
Pest and Disease Management
General pest and disease practices as listed in notes.
Removal of spent flowers will extend bloom time.