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What is a Frost Resistance Zone?

The USDA hardiness zone is the most widely used system for the lowest endurance of plants at the international level, developed by the US Department of Agriculture. An alternative system has recently been developed in the UK but has a milder climate so it is not used by us. According to the latest data, the territory of Lithuania falls into zones of 5 (Eastern and Central Lithuania) and 6th (Seaside). The settlements of Nida at the Königsberg border are already in zone 7, while certain areas of the districts of Varena and Utena correspond to zone 4. If the plant description has not yet been marked, please let us know and we will record it.

How to prepare plants for winter if the minimum plant resistance zone is lower than at the place of production?

If the plant theoretically persists in zone 4 and your plant grows in zone 5 - nothing needs to be done, the plant is fully resilient and you only need to wish him "good sleep." There may be individual reservations that are not cold dependent. Here are some examples: - If the plant likes shade (e.g.,  Buxus, Taxus) and you plant it in the sun - you will need to protect it from the early spring sun. If the plant likes dry soil (e.g., Lavender) and you are planting it in a ravine - you will need to dig a drainage ditch. - Conversely, if you plant a conifer (such as Thuja or Chamaecyparis) on a hill or slope it may dry out in the dry winter. - if the plant wakes up in early spring (e.g., Actinidia) and you plant it at the forefront of the southern wall of the house, it may die from May. frost. If the plant grows naturally in a shade (e.g., Japanese maple) and you plant it in a corridor of dry cold winds, the tops may freeze. If you fertilize the plants without going deep into the needs of the plant (e.g., after fertilizing with nitrogen fertilizers after Midsummer) - the plant will not be able to woody, prepare for winter, which will result in frosty young shoots, flower buds.

How to prepare plants for winter if the minimum plant resistance zone corresponds to the place of production?

Only young plants or plants growing in poor conditions (poor unsuitable soil, windy and very open areas, drought-prone or fertilized plants, etc.) are easily covered, as well as mulching the roots of those which are superficial and can over-dry (e.g. Magnolia)

How to prepare plants for winter if the minimum resistance zone is one height higher than the growing areas? For example, theoretically a plant overwintering in zone 6 is planted in zone 5?

For the plant to withstand the coldest winters, it is first necessary to ensure the right planting space. Each plant is individual, but most of these plants must be grown: - in soil suited to the plant's needs (specific yield, acidity, humidity, mechanical properties), - in the shelter (especially from dry cold north, northeast, east winds). Otherwise, they are air-permeable to the wind (such as agro foil) and should be in the shade of the morning and midday sun in early spring. Otherwise, shade. - the soil above the roots must be mulched with a layer of permeable material (dry leaves, dry ventilated peat, dry coarse sawdust, etc.). The layer is quite thick, from a few dozen to several tens of centimeters.

How to prepare plants for winter if the minimum resistance zone is higher by 2? For example, should the plant be grown in zone 7 and planted in zone 5?

In the coldest winters, you will probably lose your beloved plant. Still, creative extreme gardeners often prove that anything is possible. Thick breathable materials are used to prevent the plant from drying out or decaying. Occasionally waterproof covers are used additionally. The times of the cover (s) and the opening (s) need to be adjusted, etc. For a plant such as. Gunnera manicata, or banana tree Musa Basjo is probably worth the effort. However, we do not recommend growing the plant in an area outside its minimum temperature range.