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Petunia × hybrida 'CannonBall™ Yellow Improved' is a compact, mounded petunia known for its vibrant, bright yellow flowers and tidy, controlled growth habit. The CannonBall™ series is bred for excellent garden performance with minimal maintenance—producing abundant blooms that hold up well to weather, making it a standout choice for containers, hanging baskets, and landscape beds.
Description:
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Dimensions: 6–10 in. tall × 10–14 in. wide
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Sun Exposure: Full sun to part sun
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Water Requirements: Well-drained soil; moderate watering (keep evenly moist but not soggy)
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Hardiness Zones: Grown as an annual in all zones (USDA Zones 2–11)
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Bloom Time: Spring to frost (continuous with minimal deadheading)
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Pruning: Light trim to encourage branching if plants become leggy; mostly self-cleaning
How to Plant:
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Location: Garden beds, containers, hanging baskets, window boxes
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Soil Preparation: Fertile, well-drained soil enriched with compost or balanced fertilizer
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Planting: Space 10–14 in. apart; plant at same depth as in pot
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Watering: Water thoroughly after planting; maintain moderate moisture, allowing the soil surface to dry slightly between waterings
Fun Fact:
The CannonBall™ series is prized for its compact, non-trailing form, making it ideal for tidy container displays where larger, sprawling petunias would overwhelm the space — plus it offers improved weather tolerance, bouncing back quickly after rain.