How to Fertilize Canna Lily
When Should I Start Feeding My Canna Lily?
Begin feeding when new shoots emerge from the rhizome in spring, which happens earlier in warm southern climates and later in regions with a longer frost season.
How Often Should I Fertilize My Canna Lily?
Feed every two weeks during the active growing season with liquid fertilizer. If you are using slow-release granules, one application every 6 to 8 weeks is enough.
Cannas grow fast in warm weather and will visibly slow down if they run out of nutrients. Pale leaves, smaller flowers, and stunted new shoots are signs they need more food.
Stop fertilizing once the first frost kills the foliage or when you cut the stems back in fall. The rhizomes are dormant through winter and do not need nutrients.
What Is the Best Fertilizer for Canna Lily?
Canna Lilies are hungry plants that do best with a balanced fertilizer like 10-10-10 or one that leans toward higher phosphorus and potassium, such as 5-10-10. The extra phosphorus supports their large, showy blooms, and potassium strengthens the thick stems.
Granular slow-release fertilizer works well for in-ground Cannas because it feeds steadily over 6 to 8 weeks. For container-grown Cannas, a liquid fertilizer gives you more control and faster uptake.
Apply at full label strength. Unlike many ornamentals, Cannas can handle and actually benefit from regular, full-dose feeding throughout the growing season.
How Do I Fertilize My Canna Lily?
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