@dave

I'm wondering about these 2 categories. What I consider an annual to me, since I'm zone 6a, may be considered a perennial to someone else who lives in a warmer zone.

How (and what) are you going to determine what is in the annual cat. and what is in the perennial cat.?

Thanks!

Signed,

Could you use the Botanical description "tender perennial" as your indicator for the Perennial Cat? Would a plant that completes its' entire life cycle in a single growing season be the only plants in the Annual Cat?

Perennials that can be grown as annuals are probably appropriate.

To me a perennial is a perennial no matter how it is grown. If someone chooses to grow it outside it's proper zone and replant every year, doesn't change the fact that it is a perennial.

That was my initial thought, too.

what would you put a dahlia photo in: annual, perennial or bulb?

Dahlias are perennials

Since they are also tubers I put them under bulbs (food storage systems). It has been discussed previously and I believe either Bulbs or Perennials was the answer.