Alert: Limited Online Availability

Now that summer is here, we have limited our stock for online purchase. Find Monrovia plants at your local garden center. Pre-order for 2023 will be available later this year. ×

We no longer grow this plant.
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Midnight Duchess® Hydrangea

Hydrangea macrophylla 'HYMMADII' PP #18,282

Lustrous dark green foliage densely spaced along the purple-black stems provides the perfect framework for the extremely large mauve-pink lacecap flowers that mature to green. A striking specimen for cottage and woodland gardens. Disease resistant foliage. Deciduous.
There are very few rules in gardening, but perhaps the most important one is to work within your zone. Choosing plants that grow and thrive in your particular climate is the very first step toward having a beautiful garden . Learn More

Your climate might be too cold for this plant:


Filtered sun, Partial shade, Partial sun

Needs regular watering - weekly, or more often in extreme heat.


Due to the seasonal nature of plants, availability at your local garden center is not guaranteed. Give them a call before visiting.

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Botanical Pronunciationhye-DRAYN-jee-uh mak-roh-FIL-uh
Average Size at MaturityFast growing 3 to 5 ft. tall and wide.
Bloom TimeSummer
Design IdeasThis plant is a welcome addition all over the garden. Use in mass or as a specimen in a border or container planting. Accents a woodland, Asian or shade garden with year-round interest of blooms and stems.
Deciduous/ EvergreenDeciduous
Flower AttributeFlowers for Cutting, Showy Flowers
Flower ColorPink
Foliage ColorDark Green
Garden StyleAsian/Zen, Cottage
Growth HabitRounded
Growth RateFast
Landscape UseContainer, Firescaping/Firewise, Woodland Garden, Cutting Garden, Coastal Exposure
Light NeedsFiltered sun, Partial shade, Partial sun
Patent ActAsexual reproduction of plants protected by the Plant Patent Act is prohibited during the life of the patent.
Soil NeedsAll-Purpose Plant Food
Special FeatureAttractive Bark, Dense Habit, Gift Plant, Improved Disease Resistance, Improved Pest and Disease Resistance, Shade Loving, Tolerates Acidic Soil, Year-round Interest
Water NeedsHigh
Watering NeedsNeeds regular watering - weekly, or more often in extreme heat.
Companion PlantsCombine with acid loving Camellias, Evergreen Azaleas and mixed Ferns. Show off the beautiful purple-black stems in a shaded border or woodland setting against yellow flower and foliage plants like Coral Bells, Oregon Grape Holly, and Aucuba.

Provide evenly moist, well-drained soil, rich in organic matter. Follow a regular watering schedule during the first growing season to establish a deep, extensive root system. Feed with a general purpose fertilizer before spring growth. Prune to shape after flowering.

This Plant's Growing Zones: 6-9

USDA Cold Hardiness Zone Map

Your USDA Cold Hardiness Zone:

Your climate may be too cold for this plant