Summer Festival
ActiveHibiscus syriacus L. · Rose of Sharon
Jacobus Johannes Maria Lambalk
Cultivation
Cultivation in open field conditions requires the selection of varieties adapted to uncontrolled environmental factors and climatic fluctuations. Such varieties are characterized by genetic plasticity, stress tolerance, and a vegetation period consistent with local weather conditions.
Mentioned in descriptions 28 305 varieties reference book.
Varieties for open field cultivation are bred for adaptation to uncontrolled environmental conditions, unlike greenhouse varieties. Their key feature is the ability to provide a stable yield under fluctuations in temperature, humidity, and light intensity, as well as increased resistance to regional disease pressure.
The choice of variety for open field cultivation depends on the phenological characteristics of the plant, where the life cycle must fit within the frost-free period of a specific location. Morphology is an important factor: preference is often given to determinate forms, resistant to wind stress, and the crop's ability to mature uniformly to facilitate harvesting.
Cultivation technology in open field conditions requires taking into account the biological characteristics of the variety, such as the need for insect pollination. Varieties for field conditions possess higher plasticity, which allows them to maintain yield under less intensive care and nutrient management, while greenhouse counterparts often demonstrate reduced productivity and susceptibility to stress under such conditions.
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.
Hibiscus syriacus L. · Rose of Sharon
Jacobus Johannes Maria Lambalk
Hyacinthus orientalis L. · Common hyacinth
P. van Kampen
Gladiolus L. · Gladiolus
Coöperatieve Kwekersvereniging “Horizon” U.A.
Pericallis x hybrida (Scheidw.) B. Nord. · Cineraria
Kiyoshi Miyazaki
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Schroll Management ApS
Lilium L. · Lily
De Jong Beheer B.V.
Callistephus chinensis (L.) Nees · China aster
Sakata Seed Corporation (SCC)
Lilium L. · Lily
Vletter & Den Haan Beheer B.V
Salvia L. · Sage
Syngenta Seeds B.V.
Ixora L. · Ixora
LARSEN GUNNAR^^^KNUDSEN JAN
Rosa L. · Rose
Poulsen Roser A/S
Chrysanthemum L. · Chrysanthemum
Andreas Niederländer
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
Fresh Forward Holding B.V.
Rubus idaeus L. · Red raspberry
Luca Mattivi
Lilium L. · Lily
Vletter & Den Haan Beheer B.V
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Frauke Engel
Fragaria x ananassa Duchesne ex Rozier · Garden strawberry
ABZ Aardbeien uit Zaad Holding B.V.
Hippeastrum Herb. · Amaryllis
Ben van Geest
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Schroll Management ApS
Chamelaucium uncinatum Schauer · Geraldton wax
Goldsash Corporation Pty Ltd. (trading as Helix Australia)
Rhododendron simsii Planch. · Indica azalea
VAN OOST HENDRIK JOZEF
Phlox x procumbens Lehm.
Ushio Sakazaki
Hyacinthus orientalis L. · Common hyacinth
JOHANNES FERDINANDUS MARIA HOGERVORST
Rosa L. · Rose
Poulsen Roser A/S