Vroomp, I don't think these were from you. They were very large single fan divisions in a pot. I figure they are purple, not sure light or dark purple. I have Jap. iris that grow in a circle, I think they are probably roof iris - they run. They run outside of their circle too. Then I have another type, again, I think Jap. roof iris but these are supposed to be an "Eco" type from Don Jacobson. They never run and are mannerly. Just wish they'd bloom! GGG

Hi Darlene78, Growing Siberians from seed is very easy. If fact if the seed in viable then it will grow like hairs on a cats back. Most seed that maybe available to you is OP meaning open pollination of seed from bees and other insects etc. Seed that has been hand pollinated is used by different growers only. This is often in very limited amounts as he or she has selected various named varieties to cross in the process of hybridization to create the possibility of future new varieties. So If you have some offers from people posting you some seed ( About a tablespoon or two of seed ) them by all means take that opportunity to give it go. Caesar's Brother is a great variety to try. I will see if i have some still here in New Zealand and will let you know. Only to happy to post some to you if there is seed available. The seed, once harvested when the pods turn a tan or brown colour, are best kept over the summer and fall season stored in a envelope in a dry place. Then prepare your seed in the winter about 3 months' before you are ready for a mid spring sowing. Treat them as like in my blog site similar as for Japanese iris seed. If you sow them in late summer the tiny seedlings will germinate in the fall but may not survive through the winter. Spring sowing I find gives me best results. In Siberian seed,the same as Japanese and all other water loving iris seeds, there is a natural germination inhibitor which needs to be broken down or leached out before any seeds with germinate. I found the easy way is to soak the seeds in a bowl of Luke warm water to start off and leave overnight (12 hours). Then drain seed of water and put the seeds in a small plastic zip lock bag. To the bag add a ratio of 2 tablespoons of moist brown peat moss to one tablespoon of seed. The peat is acidic. This will break down and soften the outer hard seed coating as well as neutralizes the natural inhibitor. If the peat is dry add 3 or 4 tablespoons of water just to make it moist in the bag and lightly mix in with seeds. (Not overly wet please) Squeeze out extra air of the bag and zip lock. If you have several different seeds lots or varieties then put in individual bags, label, and treat the same. Place the small bags in a container or bigger zip lock bag just to keep then all together. Place in the bottom of your fridge or veggie tray ( NOT The freezer ) as per instructions on my blog. Leave undisturbed for 10 to 12 weeks. Then prepare to sown your seed in trays or pots. I take the zip lock bags from the fridge and open the small bag. I add about 5 or 6 tablespoons of dry washed river sand to the moist mixture in the bag and very gently fold into peat/ seed mixture to make the mixture dryer and flow able or easy to sprinkle as evenly as you can into the trays or pots of seed sowing mix. I cut the end of one corner of the bag as to make a large hole like a piping bag to ice a cake and use the bag to then lightly shake out to sprinkle evenly. Cover the seed with dry washed river sand and lightly water in. ( When sand is on the dry side it is easy to handle and spread.) Put tray or pot in a green house or glass house or large inflated plastic bag. Place in a warm sunny position. Germination will begin from 10 to 15 days. Keep moist with a light watering daily but not over watered. Prick out these grass like seedlings into individual pots when 3 to 4 cm (1 1/2 inches) high. Treat as young plants till they are about 20 to 30 cm ( 8 to 12 inches) in height with good green foliage and nice white roots then prepare your ground outside in the garden and you are ready to plant out. Flowering will begin the following year. Here is a link that might be useful: nzataatotarabirch.blogspot.com/

I have found Siberian Iris at local garden centers. I enjoyed those but wanted more variety. This spring I ordered more from Joe Pye Weed's Garden. They have quite an assortment. The plants are small but seem to be growing well despite a horrible first year weather wise. My first planting is now 3 years old. They have become thick round clumps about 3' wide. The clumps are almost perfect circles and look like ornamental grasses. I give them little care because my soil is reasonably rich and acid. They received a good deal of water the first year. I mulch heavily. Original planting in second season.

You could grow them on in the pot. The cold won't worry them, but they need some moisture in the soil - well drained, not wet. When I pot mine, i mix in that silicone jelly stuff that holds water, and some coir peat. Some osmocote fertiliser might be a good idea too. I would sit the pot in a shallow tray of water, so that there is some percolation of water up into the soil. Have they actually increased yet, or are they all single plants? They are surprisingly robust. I planted 3 seedlings out last year, and expected to say goodbye to them. They are clumps this year, of up to 12 rhizomes. I still think they would be safer well cared for in a pot.