Held in the Victorian greenhouse, the event is open from 10am to 4pm daily up to and including Saturday 21 October.
Festival organiser Rose Rankilor said Plant Heritage Guernsey had applied for national collection status, which took many years to achieve, and Plant Heritage UK was expected to give its decision on possible acceptance during November.
Nerine sarniensis, or Guernsey lily as it is more commonly known, was a show-piece, but the collection was about hundreds of other cultivars too.
The Guernsey lily was the first nerine to be cultivated in Europe and is reported to have been first grown in Paris in 1630.
Some people said a trip to the festival was a highlight of their October visit to Guernsey.
They included retired teaching union representative Brian Clegg, and wife Janet, from Bewdley, Worcestershire.
Mr Clegg usually bought a couple of cultivars on each visit to Guernsey but this year it was three and he now had about 50 in total.
‘When we moved house, the first thing I did was to put up a new greenhouse,’ he said. ‘Nerines for me are a bit like fireworks as they sparkle.’
Full story in today's Guernsey Press
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