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When a plant's size is listed by height, it refers to how tall the plant is from the top of the soil line/root ball to the top of the foliage, on average.
When a plant's size is listed in gallons, it refers to the size of the nursery pot it will arrive in. This is reflective of its maturity — larger numbers mean more mature plants.
Approximately 4" in diameter
Approximately 6" in diameter
Approximately 8" in diameter
Approximately 10" in diameter
Approximately 12" in diameter
Approximately 14" in diameter
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Royal Cape® Plumbago adds bold blue blooms to your outdoor space—easy-care, pollinator-friendly, and perfect for sun-filled patios or container gardens.
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Nutrient-rich blend for healthy growth
Boost soil and reduces transplant shock
Sleek, lightweight fiberglass floor planter
Looking for a low-maintenance, high-impact bloomer? Royal Cape® Plumbago delivers stunning clusters of deep blue flowers from spring to fall, attracting butterflies while shrugging off heat and drought.
Give Royal Cape® Plumbago a sunny spot with well-draining soil, and it will reward you with color-packed growth. Ideal for warm climates, this beauty is also an excellent container plant for patios, where it can be overwintered indoors in cooler zones.
Best suited for USDA zones 9-11, but can be grown as an annual or overwintered indoors in colder regions.
Add a splash of rich blue to your landscape with this easygoing, long-blooming stunner!
Your plants will arrive in happy, healthy condition—guaranteed. If not, we replace them for free. Learn more about our guarantee.
We offer free standard shipping on all orders $99+. Orders under $99 ship for a flat $15 fee. View our full shipping policy.
The Sill offers a variety of plant care workshops for beginners, experts, & everyone in between! No questions too small or too silly! View upcoming schedule.
Chat directly via video with a knowledgeable houseplant expert from The Sill team about plant-specific care, repotting tips and tricks, pest identification, and more. Schedule an appointment today.

Looking for a low-maintenance, high-impact bloomer? Royal Cape® Plumbago delivers stunning clusters of deep blue flowers from spring to fall, attracting butterflies while shrugging off heat and drought.
Give Royal Cape® Plumbago a sunny spot with well-draining soil, and it will reward you with color-packed growth. Ideal for warm climates, this beauty is also an excellent container plant for patios, where it can be overwintered indoors in cooler zones.
Best suited for USDA zones 9-11, but can be grown as an annual or overwintered indoors in colder regions.
Add a splash of rich blue to your landscape with this easygoing, long-blooming stunner!
119.00 Live Good Logistics Bloom Time: Spring to Fall Botanical Name: Plumbago auriculata 'Monott' Brand: Monrovia CA-ship Category: Flowering Vine Convictional Drought Tolerant Eligible For Promo Growing Zone: 9-11 outdoors Growth Rate Value: Moderate Live Good Logistics Mature Height Value: 5 ft. Mature Width Value: 6-8 ft. new-arrival relisted rs_AZ rs_OR Subcategory: Plumbago Sunlight Value: Full Sun Vendor: LGL https:files/the-sill_Royal-Cape_-Plumbago_Variant3.png https:files/the-sill_Royal-Cape_-Plumbago_Variant2_c30a1c5f-2dd1-4d5f-a063-462d0c1cbeec.png 42128183853161 1 Gallon / 2-PACK 95.00 119.00 https: https://www.thesill.com/products/royal-cape-plumbago?variant=42128183853161 OutOfStock 1 Gallon 2-PACK 42128183820393 1 Gallon / Single 65.00 https: https://www.thesill.com/products/royal-cape-plumbago?variant=42128183820393 InStock 1 Gallon SingleGifting has never been easier
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