Stratification help!

First of all, I have to write that I'm new of this forum.I imported some seed from China that aren't available or cultivated in our country.I'm posting here after wasting a lot of time online because I didn't quite understand how stratification is really done. I want to know how I can stratify the following seeds :

Rose seeds (Green and Black Roses)
Paulovina seeds
Sakura seeds
Pinus seeds (Bonsai)
Boston Ivy seeds
Cycas Revolta seeds
Araucria seeds

I'm told that there are two types of stratification, Cold and Hot stratifications, which one should I use for the above mentioned seeds.
Pakistan has are four seasons: a cool, dry winter from December through February; a hot, dry spring from March through May; the summer rainy season, or southwest monsoon period, from June through September; and the retreating monsoon period of October and November.

So Now, I want to know how i can stratify these seeds and what materials should I use for the process in the refrigarator.
Also, if you can recommend a site that can tell me about the growing and planting seasons of these above mentioned seeds because I am confused, thanks to a mixture of confusing websites I visited. I'm not sure about the seasons.

 

Welcome to Gardeners Corner

Only stratification i've done was to put Hawthorne seeds in a tray of sand and leave them out over winter.

I'm sure some of the others will help

 

To me Statification means leaving seeds out side, in pots over the winter.
Never bothered with the fridge.

Of the ones I recognise, I'd not even bother stratifying Cycas revoluta, it dont need it.
I've never stratified any thing from warm countries, only places that have a defined cold spell.

 

So what should i do know? How should i know season of growing? Leave cycas but bonsai etc i think are from a cold country

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Before we comment any further you'll need to tell us the exact species. For example the natural habitat of Araucaria stretches from South America at altitude all the way to Australia.
Sorry if this sounds like I'm being difficult but it does make a difference.

 

I'm sorry Zainbintariq, green and black roses do not exist anywhere in the world, so the seeds you have are not genuine.

 

I saw them on internet so many people are selling

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Yes, many people are selling them and sadly there are many people losing money because they have been conned.

I suspect they may have been sold from Ebay. There are also seeds for a multi coloured rose being advertised too which also are not genuine. This has been going on for some while and I'm surprised Ebay hasn't been told to cease trading with these people by the Trading Standards Department.

 

Actually Sheal black roses do exist naturally but only (to the best of my knowledge) in one area of Turkey. It is put down to the chemical composition of the local river which has provided the exact nutrients to turn the flowers black. However they are only true black at the height of summer - the rest of the year they are a very dark red/purple. Furthermore, cuttings taken from the plants grow red anywhere else.
Most black roses are dyed.

 

Which doesn't change the fact they aren't naturally black Longk, it's all due to chemicals.

 

Yes and no. They occur naturally - it is not slight of hand by humans.

I just googled green roses and they exist too. It ain't no beauty though.................

("Viridifolia Green Rose" by Dean Wiles - Flickr: Viridifolia Green Rose. Licensed under CC BY-SA 2.0 via Wikimedia Commons - https://commons.wikimedia.org/wiki/...se.jpg#/media/File:Viridifolia_Green_Rose.jpg)

However............Rosa chinensis viridiflora cannot produce seed as it is asexual.

 

That's ugly! It looks more like an artichoke to me.

 

Here is a link to a thread that I started. In the first post there are two links that may help you but you will need the correct Latin names for the seed that you have.
Hope that helps a bit.

 

Welcome to GC @zainbintariq look forward to watching your progress in the forums