They shoud be hardy to Z5. (the recommendation for colder climates is to plant the corms deeper - approx 6")

Many thanks,do they want sun?

Part sun, they will do well under deciduous trees and shrubs. Although I have a clump that is thriving in quite a bit of shade as they begin to bloom late summer due to the angle of the sun then + overhead leaves from a small tree. Good drainage, and it doesn't hurt to let them dry out in early summer when they are dormant...but I break that rule too because I have drip irrigation in the bed where these are planted so they do get supplemental water.

If you aren't familiar with hederifolium, the flowers show up from plants that have been dormant - usually August here, but this year are still in full bloom now. Flowers are followed by foliage that persists all winter well into Spring in this climate.

They are truly beautiful plants, and that was a generous freebie. As Morz said, they like shade here in the south. I think they prefer at least some shade nearly everywhere. The foliage is beautiful even if they never bloom. Try planting a handfull of Snowdrops right behind them. The white blooms are wonderful with the white variegated leaves of the cyclamen. You will want to know that the roots grow out of the tops of the bulbs, so plant them that way: root end up.

If they are happy, they will seed around. They are slower growers but so worth the wait.

they are iffy for me- need very sharp drainage during winter. I've grown them from seed, finally have two clumps that survived and bloomed first time this year- beauty!

I agree, they cannot get wet here in zone 5. I had a huge colony growing on a sloping, sandy hillside in deep shade that was beautiful for years. Then I added hostas and other plants that needed more water, set up sprinklers to run all summer long, and now all of the cyclamen are rotten.

Luckily I have another patch growing under the 24" eaves of my porch. This spot doesn't even get rain water to it, and I never water it any other way and they are great - and growing just at the surface.

I have mine planted on the shady north side of house. I didn't plant them deeply, probably 3" or less. They are blooming now! I like to see their perky flowers and the leaves are quite attractive, staying green even in the snow.

Mine are close to the soaker hose with Astilbees, get watered regularly because wide overhanging eaves don't let rain get in there.

I have not noticed any multiplying, but they are full and bloom reliably here in zone 5. They have been planted about 5 years. Area is sheltered from north wind by wood fence, planted near the unheated corner of foundation. I would love more, can never find any for sale, don't think to order them. Enjoy them, they appear and disappear at the oddest time, always make me smile.