A sport of H. 'Northern Halo', 'American Halo' features large, intensely blue-green leaves with wide, rippled, creamy-white margins.
Cell Size: 36 cell tray. Depth 3". Volume (max. dry) cubic inches: 7.32
Recommended Finish Size: 1 gallon
Growing Media: Well-draining commercial media
Growing Temperature: 60-70 F (days) 50-60 F (nights)
Soil PH: 5.8-6.2
Soil EC: 0.6-0.9
Finish Time for Spring Sale: 8 - 10 weeks
Growing Info: Pinching not required.
Fertilizing: Constant liquid feed at very low levels of 50-75 ppm N
Moisture Level: Allow plants to dry between ample waterings.
Watch for Pest and Disease: Aphids, mice, slugs
Vernalization Requirements: Beneficial, not necessary.
Supplemental Lighting: Plants require 14+ hours photoperiod.
Growth Regulators: Generally, not needed.
Day Length: Long Day
Other: These plants will benefit from 50% shade cover.
