There was also some rain here in north Greece a week ago. It's the driest(+warmest) winter I have ever seen(till today).

Unfortunately there is (almost)nothing you can do to postpone your plants'sprouting.I see they are ready to revive and we are just in the winter....Oh no, there is something you can do:
put your plants in the fridge to prevent them from sprouting LOL!!!!
no, just kidding

OK Let's be serious now.
Well there are some measures you can take to protect your plants from imminent frosts:

1)the old method of covering them with nylon

2)you can spray them with pinoline ( a petroleum by-product). It protects the plants to at least -5 C.You can find it in Agriculture pharmacies

3)I have read in a research that ethylene application(don't remember the dosage though) can postpone the sprouting of the buds at least 7-14 days.So it's helpful only in late-spring frosts

4)the days that there is frost you can cover the plants with dry carton or just moving them near the walls where the temperatures tend to be higher at night

5)you can spray them with copper.Copper is said to kill the Agrobacterium?? (species of bacteria) that are responsible for the beginning of the proccess of frozing on the plants.In reality they are not catalysts, they are the cores where water crystals begin to form.It may only help in slight frosts though because reinfection is abundant.

hope it helps
George

yes indeed, cereal crops are suffering from the prolonged drought.I wonder if they produce anything if that goes on.

The trees in some areas here are ready to bloom(such as prune, peach and apricot trees). If that happens so early, then some light frosts can damage them totally(hope it won't take place).

Also vines are almost ready to sprout.

I have an apricot tree in my garden and I think it's unique in the universe.And why? It is EVERGREEN not DECIDUOUS. That winter it didn't drop all its leaves but the most.It still has some very green leaves on it.Very strange, isn't it?

Let's hope God shows mercy upon us and allow it to rain/snow so as to fill the reservoirs.

Greetings
George

We have just come out of a bad freeze here in California, that was especially severe for the inland valleys where most of our Citrus crops are grown. The losses have been in the millions of dollars for both the growers and specialty nurseries that grow many palms, cycads and other tender plants in southern California. The best protection is generally trying to cover plants with sheets or blankets that can form a tent over the plants, or using commercial products such as Freeze Fabric to drape over plants. For especially tender plants, it may also be helpful to provide christmas tree lights or a light bulb on an extension cord under the cover, but be careful of creating a fire hazard.

You might find that plants that have also been stressed from winter drought may or may not suffer as much cold damage as plants actively growing with irrigation. It is generally common knowledge that plants that are not in full growth mode with fresh new shoots are more resistant to freeze damage generally. However, if you tend to get freezing weather in combination with strong cold winds, it may be helpful to heavily water tender plants before such conditions, as cold winds even above freezing can also greatly damage sensitive plants.

Having been to Greece just once, it is certainly beautiful there as well. I know after a 2 week trip all around Crete, I was ready to move there! And Santorini, I am glad I actually got to visit, as the pictures don't do it justice. I am certain one could never get bored visiting all the Greek Islands.

We don't have nearly as many islands along our coast, nor is the climate on the few islands we do have as idyllic, as they are in the open ocean and very wind swept.