plant named ‘KLEMS21085’

A new Mandevilla plant particularly distinguished by dark red flowers; and a vigorous upright plant habit, is disclosed.

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Description

Genus and species: Mandevilla sanderi.

Variety denomination: ‘KLEMS21085’.

BACKGROUND OF THE NEW PLANT

The present invention comprises a new and distinct variety of Mandevilla, botanically known as Mandevilla sanderi, and hereinafter referred to by the variety name ‘KLEMS21085’. ‘KLEMS21085’ originated from a controlled cross-pollination conducted in December 2015 in Cobbitty, New South Wales, Australia between the proprietary female Mandevilla variety ‘13.21.1’ (unpatented), and the proprietary male Mandevilla variety ‘13.21.5’ (unpatented).

The seeds from the cross were sown and plants were grown for evaluation, where an individual plant designated ‘KLEMS21085’ was selected from the group of plants in Cobbitty, New South Wales, Australia in December 2016.

In March 2016, ‘KLEMS21085’ was first vegetatively propagated by vegetative cuttings in Cobbitty, New South Wales, Australia. ‘KLEMS21085’ was found to reproduce true to type in successive generations of asexual propagation via vegetative cuttings.

SUMMARY

The following are the most outstanding and distinguishing characteristics of this new variety when grown under normal horticultural practices in Cobbitty, New South Wales, Australia.

    • 1. Dark red flowers; and
    • 2. A vigorous upright plant habit.

DESCRIPTION OF THE PHOTOGRAPH

This new Mandevilla plant is illustrated by the accompanying photograph which shows the plant's overall plant habit including form, buds, foliage, and flowers. The photograph is of a plant approximately 13-weeks-old grown indoors in Stuttgart, Germany in May 2019. The colors shown are as true as can be reasonably obtained by conventional photographic procedures.

 DESCRIPTION OF THE NEW VARIETY

The following detailed descriptions set forth the distinctive characteristics of ‘KLEMS21085’. The data which define these characteristics were collected from asexual reproductions carried out in Latina, Italy. Data was collected on sixteen-week-old plants grown in 2025. Color references are to The R.H.S. Colour Chart of The Royal Horticultural Society of London (R.H.S.), 5th edition (2007).

  • Classification:
      • Family.—Apocynaceae.
      • Botanical.—Mandevilla sanderi.
      • Common.—Mandevilla.
      • Designation.—‘KLEMS21085’.
  • Parentage:
      • Female parent.—Proprietary line ‘13.21.1’ (unpatented).
      • Male parent.—Proprietary line ‘13.21.5’ (unpatented).
  • Propagation:
      • Type.—Cuttings.
      • Time to produce a rooted young plant.—8 weeks.
      • Root description.—Limited rhizome production.
      • Rooting habit.—Normal.
      • Number of climbing tendrils.—Absent.
  • Plant description:
      • Plant and growth habit.—Vigorous, upright.
      • Plant height.—80.0 cm.
      • Plant diameter.—25.0 cm.
  • Lateral branch description:
      • Branching habit.—Medium.
      • Length.—30.0 cm.
      • Diameter.—0.5 cm.
      • Internode length.—7.5 cm.
      • Strength.—Strong.
      • Texture.—Smooth.
      • Color.—RHS 146C.
  • Foliage description:
      • Arrangement.—Opposite.
      • Length.—5.4 cm.
      • Width.—3.2 cm.
      • Shape.—Composed.
      • Apex.—Cuspidate.
      • Base.—Obtuse.
      • Margin.—Entire.
      • Texture.—Upper surface: Smooth. Lower surfaces: Smooth.
      • Venation pattern.—Pinnate.
      • Color.—Developing leaves: Upper surfaces: RHS 144A. Lower surfaces: RHS 144B. Fully expanded leaves: Upper surface: RHS 137B. Lower surface: RHS 144A.
  • Petioles:
      • Length.—0.7 cm.
      • Diameter.—0.2 cm.
      • Texture.—Upper surfaces: Smooth. Lower surfaces: Smooth.
      • Color.—Upper surface: RHS 141B. Lower surface: RHS 139D.
  • Flower description:
      • Flower type and habit.—Single.
      • Natural flowering season.—Spring, summer and autumn.
      • Flower longevity on the plant.—10 days.
      • Fragrance.—Absent.
  • Flowers:
      • Appearance.—Glossy.
      • Diameter.—8.2 cm.
      • Length.—6.3 cm.
      • Throat diameter.—2.1 cm.
      • Tube length.—6.1 cm.
      • Tube diameter, at the base.—0.4 cm.
  • Flower buds:
      • Height.—8.1 cm.
      • Diameter.—1.5 cm.
      • Shape.—Tubular.
      • Color.—RHS 46A.
  • Corolla:
      • Arrangement/appearance.—Radial, glossy.
      • Corolla throat.—Large.
      • Corolla shape.—Funnel.
      • Petal lobe length.—5.2 cm.
      • Petal lobe width.—4.8 cm.
      • Petal lobe shape.—Spatulate.
      • Petal apex.—Cuspidate.
      • Petal margin.—Entire.
      • Petal texture.—Upper surfaces: Smooth. Lower surfaces: Smooth. Throat texture: Ribbed. Tube texture: Ribbed. Color: Petal lobe: When opening: When opening: Upper: RHS 53A. Lower: RHS 46A. Fully opened: When opening: Upper: RHS 53A. Lower: RHS 46A. Throat: RHS 2B. Tube: RHS 13A.
  • Sepals:
      • Arrangement/appearance.—Fused.
      • Length.—1.0 cm.
      • Width.—0.3 cm.
      • Shape.—Lanceolate.
      • Apex.—Acuminate.
      • Margin.—Entire.
      • Texture.—Upper surface: Smooth. Lower surface: Smooth.
      • Color.—Inner surface: RHS 1B. Outer surface: RHS 149C.
  • Peduncles:
      • Length.—7.0 cm.
      • Diameter.—0.3 cm.
      • Texture.—Smooth.
      • Strength.—Strong.
      • Aspect.—About 45 degrees to stem.
      • Color.—RHS 146C.
  • Pedicels:
      • Length.—2.1 cm.
      • Diameter.—0.2 cm.
      • Texture.—Smooth.
      • Strength.—Strong.
      • Aspect.—About 45 degrees to peduncle axis.
      • Color.—RHS 42B.
  • Reproductive organs:
      • Stamens.—Quantity per flower: Five. Filament length: Less than 0.5 cm. Filament color: RHS 14B. Anther shape: Elipsoidal. Anther size: 1.0 cm. Anther color: RHS 7C. Pollen amount: Medium. Pollen color: RHS 2D.
      • Pistils.—Quantity per flower: One. Pistil length: 3.0 cm. Stigma shape: Rounded. Stigma color: RHS 7C. Style length: 2.6 cm. Style color: RHS 7C. Ovary color: RHS144D.
  • Fruit and seed set: None observed.
  • Disease and pest/insect resistance: No disease or pest resistance observed to date.

COMPARISON WITH PARENTAL LINES AND KNOWN VARIETY

‘KLEMS21085’ is distinguished from its parents as described in Table 1.

TABLE 1 Comparison with Parental Lines Variety Trait ‘KLEMS21085’ Female parent Male Parent Flower colour Dark red Red Red

‘KLEMS21085’ is most similar to the commercial Mandevilla variety ‘Big Red’ (unpatented). Differences between the varieties are described in Table 2.

TABLE 2 Comparison with Similar Variety Variety Commercial line Trait ‘KLEMS21085’ ‘Big Red’ Earliness Earlier than Big Red Later than ‘KLEMS21085’

Claims

1. A new and distinct variety of Mandevilla plant designated ‘KLEMS21085’ as illustrated and described herein.

Patent History
Patent number: PP37449
Type: Grant
Filed: Jul 18, 2025
Date of Patent: Jun 2, 2026
Assignee: KLEMM + SOHN GMBH & CO. KG (Stuttgart)
Inventor: Graham N. Brown (Bowral)
Primary Examiner: Keith O. Robinson
Application Number: 19/273,135
Classifications
Current U.S. Class: Mandevilla (dipladenia) (PLT/232)
International Classification: A01H 5/02 (20180101);