David Hare-Scott wrote:
My daffodils are in full bloom at present having started about 6 weeks
ago. They are filling the air with amazing perfume and are growing
strongly looking really good. To the best of my knowledge my climate
zone would be 9a based on minimum winter temperature, it is winter here
now but so far it has been quite mild. Many references say they are
suitable for zone 3-8, although some say up to 10. Summer here can be
very hot with 35C (95F) maximum common and 45C (113F) possible at the
extreme.

When do they bloom in colder areas?

What effect might the temperature have on them?

Here's my take on daffodils. They are hardwood woodland flowers, as
such they must develop and flower before the canopy fills in. They are
among the first (if not the first) to flower and seem to last until the
first bit of prolonged warmer weather. I don't recall seeing them being
affected by frosts.

Your variety may be acclimated differently, but that is what I know
about the wild types.

From my observations in 7b and 5b.

Jeff

David