Dark, dry basement storage works for zonal geraniums but not ivy types. Ivy geraniums need light.
Take 5-inch cuttings, strip lower leaves, dip in rooting hormone, and root in moist soilless mix under a loose plastic bag.
Keep the original in the sunniest window. Cut back in February, then start fertilizing. Watch for whitefly—spray with insecticidal soap if seen.
Overwintered ivy geraniums are never as full as greenhouse-grown plants. They bloom later in summer.
Geranium Seed Collection: Zonal vs. Hardy Types
Geranium Propagation from Stem Cuttings
Maintaining an Ivy Topiary: Pruning, Training, and Watering
Ivy Geranium Decline: Diagnosing Water, Fertilizer, and Temperature Issues
Reviving Struggling Ivy Geraniums in Hot Climates
Geranium Decline After Prolonged Rain: Adjusting Watering and Fertilizing
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