How many degrees of frost maintain open roses

How many degrees of frost maintain open roses

Housekeeping Hits: 116

Rose – plant gentle and surprising. It is a pleasure to take care of this flower. He thanks long and abundant blossoming – one pink bush during the season can give more than 20 flowers. But in regions with cold winter of rose need the winter shelter.

What happens to roses when there comes cold weather

For obtaining decorative effect which is expected from roses it is necessary to cover them carefully in cold season. Without it roses can die.

Selection roses have no ability as other long-term bushes, to enter in the winter dormant period. They meet cold weather with new young escapes and flower buds. Frosts force plant to enter dormant period forcedly. But this state reminds nothing hibernation of other bushes. Slightly temperature rises higher than zero, the rose immediately renews sokodvizheniye and continues vegetation. This feature is the main cause of death of roses in the winter.

Roses, in principle, can maintain frosts to - 6 wasps and even short-term fall of temperature to - 12 wasps. But juice in plant freezes at temperature - 3 wasps. They turn into ice which breaks off fabrics of escapes, forming in them microcracks. Old escapes, unlike young not quite ripe, these cracks (frost cracks) are not afraid (that is why before wintering the young escapes of this year on roses need to be cut off). But these cracks are very weak spot for penetration in escape of pathogenic bacteria. Once temperature reaches zero, the sokodvizheniye begins, bacteria become more active, get into plant and infect it. There will be no infection only if roses are covered, the shelter will be dry and temperature drops will not be till spring, till that time when the shelter needs to be removed from roses.

Shelter of roses

For roses it is better to use the air-dry shelter. Begin to prepare roses for wintering and to cover them when air temperature yet positive and are not present night frosts. In midland it is October. Escapes are exempted from leaves, cut off, pletisty bend down to the earth, but do not lie on it. Further over pink bush the shelter is made of wooden boards in the form of tent. Atop the tent is covered with polyethylene film, and faces remain opened till November. In November, plywood hammers faces and the film falls by them too. Inside snow and moisture should not get. Temperature in such shelter, even in hard frosts, steadily keeps all winter near - 8 wasps. Till spring the bushes are in the frozen state. And in case of long thaw the faces of the shelter should be opened. If it is not possible to make the wooden shelter, it is possible to build wire frame for each bush and to cover it with the fiber glass fabric which is doing not pass moisture. It is good to zamulchirovat the soil under bushes in the shelter leaves or fir-tree fir twigs.

Author: «MirrorInfo» Dream Team

Print