On 09/05/2014 12:26, Andrew May wrote:

I should have been a sack of just the yellow ones - but I wouldn't
guarantee it.

Was the sack sealed when you bought it, or was it open? If open and
bought from a garden centre, it's not unusual for people (particularly
of the young variety...), to pick up bulbs and put them back in the
wrong place!

--

Jeff