Royal Cape® Plumbago – Vivid Blue Blooms
Royal Cape® Plumbago – The Bluest Bloom in the Summer Garden
True blue is one of the rarest colors in the plant world — and Royal Cape® Plumbago delivers it in abundance. From spring straight through the first frost, this vigorous, heat-loving plant produces an almost continuous cascade of vivid sky-blue flower clusters that are simply unmatched for intensity and duration. Butterflies flock to it. Hummingbirds visit regularly. And through the hottest, driest stretches of summer, when most plants are struggling, Royal Cape® just keeps blooming.
Why Royal Cape® Stands Apart
- Exceptionally vivid blue flowers – The intense sky-blue color of Royal Cape® is deeper and more saturated than standard plumbago varieties — one of the truest blues available in any flowering plant.
- Longest bloom season available – Flowers continuously from spring through hard frost with minimal deadheading — 6+ months of color in warm climates.
- Extreme heat & drought tolerance – Thrives in full sun and high heat; one of the most reliable performers in hot, dry Southern and coastal landscapes.
- Butterfly & hummingbird magnet – A top nectar source for swallowtails, monarchs, and hummingbirds throughout the bloom season.
- Incredibly versatile form – Train it as a sprawling vine on a trellis or fence, let it cascade from hanging baskets and containers, or grow it as a mounding shrub — it adapts to whatever you need.
- Fast-growing – Establishes quickly and fills space rapidly; can reach 3–6 ft. in a single season in warm climates.
- Container-friendly – Thrives in pots; easily overwintered indoors in colder zones for years of enjoyment.
Ideal Uses
- Sprawling ground cover or bank stabilizer in zones 9–11
- Trained on trellises, fences, and arbors as a flowering vine
- Cascading from hanging baskets and large containers
- Mounding shrub in tropical and Mediterranean-style borders
- Butterfly and pollinator garden anchor
- Annual container plant for patios and decks in zones below 9
Picture a July afternoon in your garden — the heat shimmering, most plants wilting — and the Royal Cape® Plumbago covered in clusters of vivid sky-blue, butterflies working every flower head. It’s the plant that thrives when everything else struggles. That’s the Royal Cape® difference.
Growing Guide
- Zones: USDA 9–11 (perennial); zones 7–8 with heavy mulch protection; grown as an annual or container plant in zones below 7
- Light: Full sun — 6+ hours daily for best blooming. Tolerates partial shade but blooms less prolifically.
- Water: Drought-tolerant once established; water regularly during establishment. Reduce watering in winter in zones 9–11.
- Soil: Well-draining; tolerates sandy, rocky, and poor soils. Avoid waterlogged conditions.
- Fertilizer: Feed monthly with a balanced liquid fertilizer during the growing season for maximum bloom production.
- Pruning: Cut back hard in late winter/early spring (zones 9–11) to encourage vigorous new growth and the best bloom display.
- Overwintering: In zones below 9, bring containers indoors before frost to a bright, cool location (50–60°F). Reduce watering; resume normal care in spring.
- Mature size: 3–6 ft. tall and wide as a shrub; can spread wider as a ground cover
Available Options
Choose a Single 1-Gallon plant or save with the 2-Pack — ideal for filling a border run, creating a cascading container pair, or establishing a ground cover planting faster.
Love Blue & Purple Flowering Shrubs?
Pair Royal Cape® with the Blueberry Pie® Butterfly Bush — a compact, deep blue-purple butterfly magnet that blooms on a similar schedule and creates a stunning layered blue border with the same pollinator-friendly, heat-tolerant profile.
Original: $59.95
-65%$59.95
$20.98


Description
Royal Cape® Plumbago – The Bluest Bloom in the Summer Garden
True blue is one of the rarest colors in the plant world — and Royal Cape® Plumbago delivers it in abundance. From spring straight through the first frost, this vigorous, heat-loving plant produces an almost continuous cascade of vivid sky-blue flower clusters that are simply unmatched for intensity and duration. Butterflies flock to it. Hummingbirds visit regularly. And through the hottest, driest stretches of summer, when most plants are struggling, Royal Cape® just keeps blooming.
Why Royal Cape® Stands Apart
- Exceptionally vivid blue flowers – The intense sky-blue color of Royal Cape® is deeper and more saturated than standard plumbago varieties — one of the truest blues available in any flowering plant.
- Longest bloom season available – Flowers continuously from spring through hard frost with minimal deadheading — 6+ months of color in warm climates.
- Extreme heat & drought tolerance – Thrives in full sun and high heat; one of the most reliable performers in hot, dry Southern and coastal landscapes.
- Butterfly & hummingbird magnet – A top nectar source for swallowtails, monarchs, and hummingbirds throughout the bloom season.
- Incredibly versatile form – Train it as a sprawling vine on a trellis or fence, let it cascade from hanging baskets and containers, or grow it as a mounding shrub — it adapts to whatever you need.
- Fast-growing – Establishes quickly and fills space rapidly; can reach 3–6 ft. in a single season in warm climates.
- Container-friendly – Thrives in pots; easily overwintered indoors in colder zones for years of enjoyment.
Ideal Uses
- Sprawling ground cover or bank stabilizer in zones 9–11
- Trained on trellises, fences, and arbors as a flowering vine
- Cascading from hanging baskets and large containers
- Mounding shrub in tropical and Mediterranean-style borders
- Butterfly and pollinator garden anchor
- Annual container plant for patios and decks in zones below 9
Picture a July afternoon in your garden — the heat shimmering, most plants wilting — and the Royal Cape® Plumbago covered in clusters of vivid sky-blue, butterflies working every flower head. It’s the plant that thrives when everything else struggles. That’s the Royal Cape® difference.
Growing Guide
- Zones: USDA 9–11 (perennial); zones 7–8 with heavy mulch protection; grown as an annual or container plant in zones below 7
- Light: Full sun — 6+ hours daily for best blooming. Tolerates partial shade but blooms less prolifically.
- Water: Drought-tolerant once established; water regularly during establishment. Reduce watering in winter in zones 9–11.
- Soil: Well-draining; tolerates sandy, rocky, and poor soils. Avoid waterlogged conditions.
- Fertilizer: Feed monthly with a balanced liquid fertilizer during the growing season for maximum bloom production.
- Pruning: Cut back hard in late winter/early spring (zones 9–11) to encourage vigorous new growth and the best bloom display.
- Overwintering: In zones below 9, bring containers indoors before frost to a bright, cool location (50–60°F). Reduce watering; resume normal care in spring.
- Mature size: 3–6 ft. tall and wide as a shrub; can spread wider as a ground cover
Available Options
Choose a Single 1-Gallon plant or save with the 2-Pack — ideal for filling a border run, creating a cascading container pair, or establishing a ground cover planting faster.
Love Blue & Purple Flowering Shrubs?
Pair Royal Cape® with the Blueberry Pie® Butterfly Bush — a compact, deep blue-purple butterfly magnet that blooms on a similar schedule and creates a stunning layered blue border with the same pollinator-friendly, heat-tolerant profile.






