| Common Name | Vanilla Strawberry Hydrangea |
| Botanical Name | Hydrangea paniculata ‘Renhy’ |
| Plant Type | Deciduous shrub |
| Hardiness Zone | 4-8 |
| Mature Size | 6-7 ft tall, 4-5 ft wide |
| Sun | Full sun to part shade |
| Soil | Moist, well-drained |
| Bloom Time | Mid-summer to fall |
| Bloom Color | White aging to pink to strawberry red |
| Deer Resistant | Moderate |
Why Vanilla Strawberry for Wisconsin
Vanilla Strawberry was one of the first panicle hydrangeas to show strong color change through the season. The flower heads open creamy white in July, then transition through shades of pink to a deep strawberry red by September. Each panicle shows multiple colors at once because the flowers at the bottom age faster than those at the top. Hardy to Zone 4, it blooms on new wood, so Wisconsin winters never cost you a year of flowers.
Planting Instructions
When: Spring or early fall.
Where: Full sun for the most intense color development. Part shade is fine but pinking may be less dramatic.
How: Dig a hole twice as wide as the root ball. Amend heavy clay with compost. Water deeply and mulch.
Care Throughout the Season
Spring: Cut back to 12-18 inches in late winter or early spring. This promotes strong new growth and larger flower heads. Blooms form on new wood.
Summer: Flowers start appearing in July. Keep soil consistently moist for the best blooms. A layer of mulch helps.
Fall: The color show peaks in September. Leave the dried flower heads on for winter interest or cut for dried arrangements.
Winter: Hardy and dormant. The dried panicles look striking with snow on them.
Common Problems in Wisconsin
Floppy stems: Heavy flower heads can cause stems to lean, especially after rain. Hard spring pruning to a low framework helps. Staking individual stems is another option.
Leaf scorch: In full sun during heat waves, leaf edges can brown. Consistent moisture and mulch prevent this.
Companion Planting
Catmint at the base provides blue contrast. Sedum carries the fall color theme. Ornamental grasses add movement alongside the heavy flower heads. Boxwood provides evergreen structure in winter when the hydrangea is bare.
Design and Landscape Uses
Specimen plant, mixed shrub border, foundation planting, or cut flower garden. The multi-color blooms make a single plant look like an arrangement. Plant where you walk past it daily to watch the color transformation. Makes an outstanding cut flower, both fresh and dried.
Fun Fact
The color change in Vanilla Strawberry is triggered by the pigment anthocyanin, which develops as the flowers age. Cooler night temperatures in fall accelerate the color shift. This is the same pigment responsible for fall leaf color in maples. The name Vanilla Strawberry refers to the two-tone appearance: vanilla (white) at the top and strawberry (pink-red) at the bottom of each panicle.
Vanilla Strawberry Hydrangea is available at our Cedarburg nursery.