Heuchera – Primo® Mahogany Monster
Attracts: Butterflies, Hummingbirds
Native to North America
Thrives in part shade but will grow in sun or shade. Plant in humus-rich, well-drained soil. Trim back tattered foliage in early spring. Salt tolerant.
Needs Good Drainage
Maintenance Category Easy
Water Category Average
Flower Form Border Plant, Container, Landscape
Soil Fertility Average Soil, Fertile Soil
Soil PH Category Acidic 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 65 - 72° 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. Preventative sprays to control Botrytis may be necessary under cold, wet, low-light conditions.
Grower Tips for Grower Tips for Dolce
-For best foliage coloration, avoid scorching light. Very high light can scorch foliage.
-Light shade is essential for optimal growth.
-B-9 at 2,500 ppm will help keep Amethyst Myst petioles short under low light conditions.
-To reduce or avoid bacterial leaf spotting use a copper based spray bi-monthly.
-Finished spring plants can be moved outside to take advantage of cool temperatures for holding purposes only.