How to Root Perennial Petunias from Cuttings

Overview

Petunias grown in ideal conditions can behave as perennials. Propagating from cuttings lets you multiply favorite varieties for spring planting.

Step 1: Sterilize Tools

Dip pruning shears in 1:1 bleach-water to kill bacteria.

Step 2: Timing

Take cuttings in late fall for rooting before spring planting.

Step 3: Prepare Cutting

Snip 5–6 inch stem just above a leaf node. Remove flowers/buds and all but top 4 leaves.

Step 4: Potting Mix

Fill 4-inch pot with light, airy, well-draining mix containing vermiculite. Make 2-inch hole.

Step 5: Rooting Hormone

Pour hormone on paper towel. Dip cutting end, shake excess. Don’t dip directly in container.

Step 6: Plant Cutting

Insert into hole, firm soil so cutting stands upright.

Step 7: Aftercare

Water well. Keep soil lightly moist, not soggy. Place in warm, high-light area.

Step 8: Fertilize & Transplant

Feed with half-strength 10-10-10 water-soluble fertilizer 2 weeks after planting, then weekly. Move to garden in spring.