Arizonica

Arboretum and Nursery

Arizonica Arboretum

Csákvár, Hungary

Countering the deteriorating climate

Our goals

Experiment:
To create and maintain a dendrological collection in close to natural conditions, without irrigation, chemicals (plant protection agents, artificial fertilizers, hormones) or manure, under especially bad conditions.
Science:
To study the environmental and climatic limits of tolerance of woody plants from distant parts of the world, with special regard to conifers.
To select plants tolerant of drought, cold and extreme heat, with low nutrient need and high aesthetic value, and introduce them to nursery propagation.
Economy:
To develop and continuously offer a sustainable range of plants in a cost effective way and retaining the decorative value despite the steadily deteriorating climate.
To disseminate a garden culture that is labour- and cost-saving and spares the diminishing natural resources.
Nature protection:
To cultivate and protect as many endangered species as possible.
Protection of the environment:
To develop methods effective over the long term for the utilisation of areas with poor soil.
Education:
To present biodiversity.
To illustrate ecological flexibility.
To prepare to cope with climate deterioration.
Aesthetics:
To adapt the sub-Mediterranean-semi-arid milieu in the deteriorating climate to the Hungarian landscape and Hungarian gardens ("Pannonian garden").

Both reason and feelings teach us that nature has always been and always will be the basis of our existence. It is our job to explore and preserve its fantastic diversity with its help and a deep knowledge of nature because we know that at the same time we are protecting ourselves. This is why we learn and teach how nature "works". We don't go against it, but find our place in it: we are part of it, not its master.

Arizonica Arboretum

Location and characteristics
The Arizonica Arboretum is located in Northern Hungary, on the south-eastern slope of the Vértes Hills (Latitude 48?12' N, Longitude 18? 51' E), at the foot of Kótló Hill to the north of Csákvár.
Planting started: 1996
Elevation above sea level : 240 - 260 m
Distance from sea: 550 km
Area: 5101 m2
Climate zone: 6b - 7a (USDA)
Absolute minimum temperature: -29.2 C (January 1943)
Absolute maximum temperature: 41.6 C (July 20, 2007)
Mean annual temperature: 10.2 C
Mean annual precipitation: 512 mm; max: 873 mm (1999); min: 310 mm (2000)
Topography: gentle (max 6 %) south-east facing slope, strong exposure to sunshine and wind
Geological conditions:
A weak forest soil with sedimentary stones and patches of white (sea) quartz sand on a substratum of dolomite and soft sandstone.
Nutrient content: on the average one third of the optimal level of the main nutrients (NPK, Fe, P, Ca, B, Mg, Mn). High Cl content, 10 mg/soil kg
Soil pH: 8.3 - 8.6 (strongly alkaline)
Depth of topsoil: 15-35 cm
Water retention capability: very weak
Woody plants in the original vegetation of the surrounding region:
Quercus pubescens, Quercus cerris, Carpinus orientalis , Acer tataricum, Fraxinus excelsior, Fraxinus ornus, Corylus avellana, Tilia platyphyllos, Tilia cordata, Crataegus monogyna, Euonymus europaeus, Rosa canina, Sorbus torminalis, Sorbus vertesensis, Cotinus coggygria, Pyrus sp., Clematis vitalba.
Main cultivated woody plants in the region
Robinia pseudoacacia, Acer pseudoplatanus, Acer platanoides,Pinus nigra ssp. austriaca, Pinus nigra ssp. laricio, Pinus sylvestris, Juglans nigra, Populus sp., Sophora japonica, Thuja orientalis, Picea pungens,Elaeagnus angustifolia, Tamarix tetranda,Buxus sempervirens.