Rita's Garden Path

New Guinea impatiens (Impatiens SUNPATIENS SERIES)

Discover Impatiens SUNPATIENS SERIES, sun-loving New Guinea impatiens thriving in heat with continuous color from spring to frost.

Scroll down to discover growing tips, care requirements, companion plants, and more

New Guinea impatiens (Impatiens SUNPATIENS SERIES)

Complete Plant Information

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Hardiness Zones
USDA 10 - 12
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Plant Type
Herbaceous perennial
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Plant Family
Balsaminaceae
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Sun Exposure
Full sun to part shade
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Water Needs
Medium
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Maintenance
Low
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Height
1.5' - 4' (46cm - 122cm)
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Bloom Time
Flowers freely
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Flower Color
Pink, coral, orange, salmon, red, lilac, lavender and white
Flower Qualities
Showy
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Tolerances
Rabbit
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Garden Uses
Annual

Overview

The Impatiens SUNPATIENS SERIES represents a monumental shift in impatiens breeding, offering gardeners the vibrant color displays they love without the need for deep shade. Unlike traditional New Guinea impatiens, these cultivars are specifically bred to tolerate, and even thrive in, full sunlight, making them incredibly versatile bedding plants. They are perfect for adding non-stop, large-flowered coverage to hot, humid garden spots where other impatiens would fail.

Developed through hybrid crosses involving wild impatiens, the Impatiens SUNPATIENS SERIES provides larger, bushier plants capable of blooming profusely from late spring right up until the first autumn frost. Gardeners appreciate the low maintenance level combined with the massive visual impact delivered by their broad spectrum of colors. These New Guinea impatiens open up new design possibilities previously unavailable to beds exposed to strong midday sun.

The series encompasses plants known botanically as Impatiens hawkeri variations, noted for their large, spectacular flowers and substantial foliage structure. Whether you are looking for trailing habits for baskets or upright structure for borders, the SUNPATIENS SERIES delivers robust performance, addressing the traditional shyness of New Guinea impatiens toward intense light.

Fast Facts

  • Plant Family: Balsaminaceae
  • Plant Type: Herbaceous perennial
  • Hardiness Zones: USDA Zones 10-12
  • Size at Maturity:
    • Height: 1.5-4 ft
  • Bloom Time: Flowers freely
  • Bloom Description: Pink, coral, orange, salmon, red, lilac, lavender and white
  • Sun Exposure: Full sun to part shade
  • Water Needs: Medium
  • Maintenance Level: Low

How to Grow

Planting Impatiens SUNPATIENS SERIES is best done after all danger of frost has passed, as they are typically grown as annuals in most areas. Select planting locations that offer rich, well-draining soil amended with organic matter to ensure consistent moisture retention. While these New Guinea impatiens varieties are sun-tolerant, incorporating afternoon shade can enhance leaf quality in the hottest climates.

Watering should be consistent, as indicated by their medium water needs. Irregular watering can stress the plants, although established individuals handle heat better than standard impatiens. Fertilize regularly with a balanced, slow-release fertilizer or use a water-soluble feed every two to four weeks to encourage the vigorous, floriferous habit that the SUNPATIENS SERIES is known for.

Maintenance is generally low. Deadheading spent flowers is usually unnecessary as this series typically self-cleans, dropping old blooms cleanly. Pruning is rarely needed but can be employed to shape the plants if they become too leggy late in the season, though avoidance of full shade will naturally encourage a more compact form.

A critical cultural consideration is recognizing this series’ unique adaptation: Unlike traditional New Guinea impatiens which need protection from full sun, SUNPATIENS SERIES impatiens were developed to thrive, as the series name suggests, in full sun. They also thrive in hot and humid summer climates. Full shade should be avoided as it can result in sparse flowering and weak stems.

Landscape Uses

The superb sun tolerance of Impatiens SUNPATIENS SERIES makes them ideal candidates for challenging, high-exposure garden areas. They excel when massed or grouped in beds and borders, providing solid blocks of color that last all season long. Their substantial size also allows them to function effectively as tall ground cover in areas where light levels moderate during the day.

These plants are excellent for softening hardscaping, serving as neat edging along walks or paths where their vibrant flowers draw the eye. Additionally, they perform admirably in containers, window boxes, and hanging baskets, where their mounding and vigorous habits create dramatic, full displays suitable for sunny patios.

Consider companion planting these vigorous New Guinea impatiens with heat-loving annuals that share similar water needs, such as Lantana or Calibrachoa, for mixed container designs. Their upright structure also lends itself well to being placed toward the back of mixed annual displays, offering reliable texture and contrast.

Standout Features

Flower Qualities

  • Showy

Noteworthy Characteristics

The breeding breakthrough behind Impatiens SUNPATIENS SERIES involved hybridizing traditional New Guinea impatiens with wild impatiens, resulting in a plant that handles high heat and sun. Plants exhibit large, 5-petaled asymmetrical flowers covering the foliage from spring until frost, often growing taller and bushier than their shade-loving relatives. These characteristics make the SUNPATIENS SERIES a premier choice for dependable, continuous color in full sun locations.

Tolerances

  • Rabbit

Potential Problems

The Impatiens SUNPATIENS SERIES boasts a low overall disease risk, being reportedly highly resistant to downy mildew—a major concern for standard impatiens varieties. However, gardeners should remain vigilant for signs of impatiens necrotic spot virus, fungal blights, powdery mildew, and various rots, especially in overly damp conditions. Standard pests like aphids, thrips, mealybugs, whitefly, slugs, and snails may appear and should be managed promptly with appropriate horticultural oils or baits.

While these sun-loving varieties resist scorching, monitoring leaf appearance is still important. If placement is extremely hot with reflected heat, minor issues can occur, but general foliage burn seen in other Impatiens is rare in this series. Keeping the plants consistently watered will help them resist pest infestations and maintain their superior vigor.

Frequently Asked Questions

What hardiness zones is New Guinea impatiens suitable for?

Impatiens SUNPATIENS SERIES is hardy in USDA Zones 10 through 12, though it is most commonly grown as a low-maintenance annual elsewhere.

How large does New Guinea impatiens grow?

This plant typically reaches a mature height between 1.5 and 4 feet tall, depending on the specific habit within the series (Compact, Spreading, or Vigorous).

What sun exposure does New Guinea impatiens need?

These specialized plants perform best in full sun to part shade conditions, making them unique among impatiens that usually require deep shade.

When does Impatiens SUNPATIENS SERIES bloom?

This series flowers freely, providing non-stop color from spring until fall frost, featuring shades of pink, coral, orange, salmon, red, lilac, lavender, and white.

Conclusion

The Impatiens SUNPATIENS SERIES offers unparalleled color impact for sunny garden spots, combining the lush appeal of New Guinea impatiens with remarkable heat and sun tolerance. Their low maintenance profile and extended bloom window make them invaluable additions to any summer landscape design. Before planting, confirm your local hardiness zone or plan to treat them as spectacular warm-season annuals for maximum enjoyment.

Companion Planting

When designing beds featuring the sun-loving Impatiens SUNPATIENS SERIES, select companions that share a love for consistent moisture and bright light. Plants like Zinnias (especially dwarf varieties), Marigolds, or Verbena integrate well with the mounding structure of these New Guinea impatiens. For containers, use upright, spiky foliage plants like Dracaena or soft trailing elements like creeping Jenny to complement the flower mass.

Design Ideas for Full Sun Annual Displays

The striking colors available in the SUNPATIENS SERIES—from deep reds to bright whites—allow for high-impact monochromatic or contrasting designs. Use the Compact Series for front borders where you need dense, low color, reserving the taller Vigorous Series for bold vertical accents. Their large blooms ensure they remain focal points even when placed next to bolder architectural plants in full sun.

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