is the flower/plant Corydalis an annual or perennial?

Question

And will it grow well in full shade in Southwestern PA.
Please help and thanks in advance

I am in zone 5-6

Answer 1

According to Sunset's Western Garden Guide "Corydalis" is a perennial. Should grow well in Zones 4-9 & 14-24, grows in partial shade, likes moist not soggy soil.

Now their zone map shows Zones 4-9 as being the southern parts of Washington state along the Pacific coast and Zones 14-24 would be the southern part of California & the desert areas of Arizona.

Don't know how this would compare with Southwestern, PA but you might be able to do a comparison. Unfortunately their zone maps cover only to Wyoming.

Answer 2

some mums are hardy to overwinter... others are hothouse mums that are not perennials.... as for 'pinching off'.... I pinch off the top growing part of the leaves (right where new leaf growth is coming at the top most growing part of the plant) but only do so up until the middle of July because then it still has time to make the blossoms. I keep them 'pinched' to about 4" high until the mid-July time.. they will be healthy thick plants with lots of blooms! do you still have the tags that came with the mums you bought? you can check to see if they are hardy in your area, meaning they will overwinter and grow again next year.

Answer 3

Both annual and perennial. Corydalis is a genus with about 300 species of annual and perennial herbaceous flowering plants.

What USDA zone/location it will grow in depends on which species you wish to plant, although many are native to temperate areas.

Sorry I can't be more specific.

Good luck!

Answer 4

Here is a web site. Hope this helps you out. If not go to a local library and barrow a flower book from A-Z.

https://www.rbgkew.org.uk/newviews/language/azlistZ.shtml

Year long gardner. Learning through trial and error.