Trouble-shooting your microgreens
POOR STRIKE RATE, SEEDS FAIL TO GERMINATE OR COME UP UNEVENLY:
• Were the seeds past their expiry date? • Have seeds been exposed to water or excess heat? • Did you use a quality media? • Was the media evenly moist throughout? • Were the temperatures adequate for germination?
SEEDS GERMINATE, THEN WILT AND DIE:
This is probably ‘damping off,’ the main enemy of seedlings, caused by a collection of soil-borne fungi diseases (Pythium, Rhizoctonia and others) which thrive in warm, wet, humid conditions. Seaweed increases resistance to plant pathogens - it can be added to the media as kelp, or watered in as a dilute solution.