Monday, August 25, 2014

Cannas from Seed


I have successfully grown canna lilies from seed for a few years now and am always on the lookout for more canna seed. I love cannas! They are so tropical looking and perfect for filling in holes anywhere! 


Dwarf Yellow
This past winter I started many different canna seeds that I received in a trade. The above pic is a few that I grew from those seed. Some turned out to be large flowering dwarf yellow ones, very nice! One tall peach, beautiful! Several tall with very small yellow flowers but large tropical leaves and, so far, one dwarf gold colour. I will put the ones with small flowers together in bare spots in the new large flowerbed at the front. The nicer ones will go into the courtyard, the pond and various pots. 


I have developed a technique that usually works well. Canna seeds have a coating that has to be opened to allow water to enter and germinate the seeds. This is not so easy to do. Many seeds need scarification (as this is called) but cannas are particularly difficult. The first year I tried several different methods but the only one that worked for me was using a rasp in the drill on high speed and holding the seed to it with a pair of needle nose pliers. This year I have a whet stone that I used with success. 


The seed only needs a very small and very shallow opening in the black coat to germinate. I don't want to harm the seed inside or it will not grow. After this step, I soak them overnight in warm water before planting. If done correctly, they will germinate in about 2-3 weeks in warm temps in potting soil indoors. Many that I have started in this manner in Jan-Feb have grown to bloom in the same season, even in Ontario, especially the dwarf varieties which don't need a long growing season. 


One Peach Canna
Growing cannas from seed is very rewarding! I like all the tender bulbs that go into cold storage for the winter. I can put them where I need them in the spring, filling in holes and covering dying daffodil leaves as they age. Dahlias are another favourite for the same reasons. 

This coming winter I want to grow more cannas. I would love to trade for canna seeds that are not yellow. I have only yellow cannas now. I would like some with red leaves and some with fancy striped leaves and some with large red flowers. If you have seeds from these varieties and would like to trade, please contact me. My seed list will be on my exchange page at Gardenweb, after I have had a chance to update it this fall.




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