Prickly Lettuce
Lactuca serriola L.
Care Specifications & Requirements
Full Sun
Moderate
Easy
Non-toxic to humans, but can be mildly toxic to livestock in large quantities.
Botanical Overview
Prickly lettuce is an annual or biennial weed known for its spiny leaves and stem. It produces small yellow, dandelion-like flowers.
Step-by-Step Prickly Lettuce Care & Diagnostic Protocol
AI Doctor ProtocolCalibrate Light Exposure & Orientation
Place Prickly Lettuce in an area with full sun. If leaf tips turn crispy brown, move away from direct southern sun. If stems become leggy, increase light levels.
Soil Moisture & Drainage Check
Always test soil moisture 2 inches beneath the surface before watering (moderate). Ensure pots have adequate drainage holes to prevent moisture stagnation and root rot.
Pest & Disease Inspection
Examine leaf undersides for webbing (spider mites) or powdery white residue (mildew). If yellowing leaves or dark necrotic spots appear, isolate the plant immediately to avoid fungal spread.
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