There's really no need to scale Chocolate Canary. It produces an abundance of stem bulblets naturally and colonizes rapidly, A package of 3 bulbs will yield about 30 stem bulblets the first year down. The primary reason for scale cloning is normally used for the purpose of making a couple safety backup bulbs of an expensive or rare bulb that cannot be replaced , just in case something terrible happens to the original.
Good points by Rick and Tracey in posts above. Although I think Rick gives a little more credit to Trumpets than they deserve when it comes to developing stem bulblets. Most of my Trumpet/Aurelian hybrids do not produce stem bulblets or do so reluctantly. When I see one that makes bulblets, I'm always suspicious that some Oriental blood has got in there from somewhere and a quick check on bulb color usually backs that up.
Chocolate Canary is a super hardy cultivar and is one of my favorites in a mixed garden with colorful annuals.
