The Diablo Ninebark (Physocarpus opulifolius ‘Monlo’) is a striking ornamental shrub prized for its deep burgundy foliage, peeling bark texture, and airy clusters of soft pinkish-white flowers. This bold cultivar of native ninebark delivers dramatic contrast in the landscape while maintaining the toughness and adaptability the species is known for.
With its rich color, fast growth, and low maintenance needs, Diablo Ninebark is ideal for privacy screens, foundation plantings, and adding depth to mixed shrub borders.
AttributeDetails🌿 Botanical NamePhysocarpus opulifolius ‘Monlo’🏷️ Common NamesDiablo Ninebark, Purple Ninebark🌳 Mature Height6–10 feet🌐 Mature Width6–8 feet📈 Growth RateFast (24–36 inches per year)⏳ Lifespan20–30+ years🧊 USDA Zones3–7❄️ Chill Hours600–900 hours☀️ Sun PreferenceFull sun for best color; tolerates partial shade🧱 Soil TypeHighly adaptable; tolerates clay, loam, and sandy soils⚖️ Soil pHSlightly acidic to neutral (5.5–7.5)💧 Water NeedsModerate; drought-tolerant once established🌸 Flower ColorPinkish-white clusters; late spring to early summer🍒 Fruit TypeSmall reddish seed capsules; ornamental🐝 PollinatorsAttracts bees and beneficial insects🌿 Growth HabitUpright, arching branches with dense, rounded form↔️ Spacing6–8 ft apart for screens or mass planting🏡 Landscape UsesPrivacy hedges, contrast plantings, foundation beds🧹 Maintenance LevelLow
🌸 Supports pollinators with abundant spring blooms
🌿 Native genetics contribute to stronger ecosystem support
🌱 Provides shelter and structure for birds and small wildlife
🌧️ Performs well in poor soils, helping stabilize difficult sites
✅ Pros⚠️ Cons🍷 Deep burgundy foliage adds bold, dramatic color🌥️ Color fades in too much shade🌿 Extremely hardy and adaptable to tough conditions✂️ Can become leggy without occasional pruning🐝 Pollinator-friendly flowers in late spring🍂 May thin out in the center over time🧬 Native species base with strong resilience🌱 Fast growth may require space planning🏡 Excellent for hedging, screening, or focal points🍃 Leaf color can green slightly in extreme heat
🛁 Water thoroughly before and after planting to reduce transplant stress
🕳️ Dig a hole twice as wide as the root ball; plant level with soil line
🌾 Apply mulch to conserve moisture and regulate soil temperature
💦 Water regularly during establishment; reduce once mature
✂️ Prune in late winter or after flowering to encourage dense growth
🧪 Fertilize lightly in spring with compost or balanced shrub feed
The Diablo Ninebark Shrub is a bold, fast-growing native cultivar that combines rugged durability with standout color. Perfect for homeowners who want low-maintenance structure with high visual impact, this shrub delivers season-long interest while supporting pollinators and thriving in a wide range of conditions.
The Diablo Ninebark (Physocarpus opulifolius ‘Monlo’) is a striking ornamental shrub prized for its deep burgundy foliage, peeling bark texture, and airy clusters of soft pinkish-white flowers. This bold cultivar of native ninebark delivers dramatic contrast in the landscape while maintaining the toughness and adaptability the species is known for.
With its rich color, fast growth, and low maintenance needs, Diablo Ninebark is ideal for privacy screens, foundation plantings, and adding depth to mixed shrub borders.
AttributeDetails🌿 Botanical NamePhysocarpus opulifolius ‘Monlo’🏷️ Common NamesDiablo Ninebark, Purple Ninebark🌳 Mature Height6–10 feet🌐 Mature Width6–8 feet📈 Growth RateFast (24–36 inches per year)⏳ Lifespan20–30+ years🧊 USDA Zones3–7❄️ Chill Hours600–900 hours☀️ Sun PreferenceFull sun for best color; tolerates partial shade🧱 Soil TypeHighly adaptable; tolerates clay, loam, and sandy soils⚖️ Soil pHSlightly acidic to neutral (5.5–7.5)💧 Water NeedsModerate; drought-tolerant once established🌸 Flower ColorPinkish-white clusters; late spring to early summer🍒 Fruit TypeSmall reddish seed capsules; ornamental🐝 PollinatorsAttracts bees and beneficial insects🌿 Growth HabitUpright, arching branches with dense, rounded form↔️ Spacing6–8 ft apart for screens or mass planting🏡 Landscape UsesPrivacy hedges, contrast plantings, foundation beds🧹 Maintenance LevelLow
🌸 Supports pollinators with abundant spring blooms
🌿 Native genetics contribute to stronger ecosystem support
🌱 Provides shelter and structure for birds and small wildlife
🌧️ Performs well in poor soils, helping stabilize difficult sites
✅ Pros⚠️ Cons🍷 Deep burgundy foliage adds bold, dramatic color🌥️ Color fades in too much shade🌿 Extremely hardy and adaptable to tough conditions✂️ Can become leggy without occasional pruning🐝 Pollinator-friendly flowers in late spring🍂 May thin out in the center over time🧬 Native species base with strong resilience🌱 Fast growth may require space planning🏡 Excellent for hedging, screening, or focal points🍃 Leaf color can green slightly in extreme heat
🛁 Water thoroughly before and after planting to reduce transplant stress
🕳️ Dig a hole twice as wide as the root ball; plant level with soil line
🌾 Apply mulch to conserve moisture and regulate soil temperature
💦 Water regularly during establishment; reduce once mature
✂️ Prune in late winter or after flowering to encourage dense growth
🧪 Fertilize lightly in spring with compost or balanced shrub feed
The Diablo Ninebark Shrub is a bold, fast-growing native cultivar that combines rugged durability with standout color. Perfect for homeowners who want low-maintenance structure with high visual impact, this shrub delivers season-long interest while supporting pollinators and thriving in a wide range of conditions.
