Knockout
ActiveDahlia Cav. · Dahlia
KEITH RICHARD WILLIAM HAMMETT
Cultivation
Bedding plant displays are a method of using plants in landscaping that requires strict adherence to geometry, ornamental synchrony, and a high level of agronomic care.
Mentioned in descriptions 13 612 varieties reference book.
Bedding displays involve planting in closed contours, which requires varieties with high habit predictability. For formal compositions, ornamental synchrony is important, where selected species have matching developmental stages, as well as an intensive care regimen, including fertilization, formative pruning, and regular deadheading.
When evaluating a variety for these purposes, habit stability is key: plants must be uniform in height and shape, maintaining compactness throughout the season. Important characteristics include duration of flowering, high ornamental performance, and response to pruning, as the variety must quickly recover its structure after thinning.
The choice of a variety for flower beds depends on the planned composition, where it is critical to consider developmental timelines and the potential for expansion in width and height to avoid overcrowding. Agronomic assessment also includes adaptation to lighting and soil type, and in the case of scaling up, an assessment of propagation ease while maintaining varietal traits.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Dahlia Cav. · Dahlia
KEITH RICHARD WILLIAM HAMMETT
Rosa L. · Rose
Wilhelm Kordes,Tim-Hermann Kordes,Margarita Kordes
Escallonia laevis (Vell.) Sleumer · Escallonia
Pépinières Laden S.A.R.L.
Rosa L. · Rose
Wilhelm-Alexander Kordes, Tim-Hermann Kordes, John-Vincent Kordes
Hydrangea paniculata Siebold · Panicled hydrangea
Plant Select N.V.
Rosa L. · Rose
Zary Keith W.|Thousand Oaks, CA, US
Pycnosorus globosus F. L. Bauer ex Benth. · drumsticks
Gavriel Danziger
Zantedeschia Spreng. · Arum-lily
Tim Kapiteyn
Rosa L. · Rose
David J.C.Austin
Rosa L. · Rose
David J.C.Austin
Zantedeschia Spreng. · Arum-lily
Kapiteyn Breeding B.V.
Rosa L. · Rose
DAVID JC AUSTIN
Rosa L. · Rose
David J.C.Austin
Nandina domestica Thunb. · Heavenly bamboo
Magnolia Gardens Nursery
Rosa L. · Rose
David Austin Roses
Rosa L. · Rose
David Austin Roses
Lilium L. · Lily
VOORT| C.A. van der Voort
Rosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
Rosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
Rosa L. · Rose
Rosen-Tantau Mathias Tantau Nachfolger
Lilium L. · Lily
VLETTER FLORIS| Floris Vletter
Rosa L. · Rose
MEILLAND RICHARDIER| Alain Meilland,F-Antibes und Michele Richardier F-
Rosa L. · Rose
W. Kordes Sohne Rosenschulen GmbH & Co KG| DE
Rosa L. · Rose
W. Kordes Sohne Rosenschulen GmbH & Co KG| DE