Light
Full sun to bright light
AtHomeGrower Plant Facts
Sunflower
Helianthus annuus
Sunflower is a warm-season broadleaf cover crop added to Fill My Space, Plant Facts, Zones, and Plant Care.
Soil mixture
Average to fertile, well-drained soil depending on the species
Soil moisture
Moderate, even moisture during active growth
When to chop or terminate
Terminate before seed set, then use the residue as mulch, compost input, or green manure.
Use in the garden
Tall summer biomass with pollinator support and deep rooting
Plant Diagnoser notes
Watch for yellowing leaves, brown tips, weak growth, pest residue, and soil that stays wet too long. Match symptoms against watering, light, soil drainage, airflow, and pest pressure.
Fill My Space tags
plant-type:cover-crops, category:cover-crops, cover-crops:enabled, fill-my-space:enabled, plant-facts:enabled, plant-care:enabled, tool:zones, cover-crop-group:broadleaf, season:warm-season, light:bright-light, care:easy, environment:outdoor, location:outdoor, suitability:outdoor, zones:4-10, facts:sunflower-cover, plant:sunflower-cover, frost:winterkill, zone:4, zone:5, zone:6, zone:7, zone:8, zone:9, zone:10, Outdoor, Full sun to bright light, Moderate, even moisture during active growth