Alternanthera – Purple Knight – Alternanthera dentata
Containers and landscapes.
Maintenance Category Easy
Water Category Average
Flower Form Container, Landscape
pH A - pH 5.5 - 5.8
EC (2:1 Extraction Method) 0.6 - 0.9
Fertilization 200 - 300
Light Requirements High
Water Requirements Moderate to Moist
Rooting Out Temperature 65 - 72° Fahrenheit
Growing On Temperature 65 - 72° Fahrenheit
Holding Temperature 50 - 60° Fahrenheit
Planting and Timing Information
Spring through Summer Finish. Standard PPP
Finishing Times [weeks]
4-5" and Quart Pot : 4-6
6" and Gallon Pot : 6-8
7-9" Pot : 7-9
10-12" and Two Gallon Pot : 10-12
Pinching and Growth Regulators
Pinching is not needed but may be used to shape and increase branching. PGRs may be needed, a light application may help control growth in small containers. Bonzi or Sumagic are effective. Do not use Cycocel.
Pest and Disease Management
General pest and disease practices as listed in notes.