Passiflora racemosa hardiness

[Tomas]

There are conflicting opinions on the cold hardiness of this plant, does anyone grow it?
My plant unexpectedly survived a winter with -3°C without any damage

[Silas_Sancona]

32 minutes ago, Tomas said:

There are conflicting opinions on the cold hardiness of this plant, does anyone grow it?
My plant unexpectedly survived a winter with -3°C without any damage

Per iNat data, looks like it originates in the same region of  S. Brazil where several Sennas / Cassia cultivated in CA and other parts of the U.S. south survive pretty easily.

Those include:  Cassia leptophylla, a very common tree in Cen/ S. CA.  Senna macranthera ..Which had been sold under the wrong name ( S. splendida ) in CA, and S. pendula ..Another S. American Senna sp. that is widely sold under the wrong name in the Hort. trade  up here.




I wonder if Patrick Worley, a well known Passiflora hybridizer in the 80's / 90's ( might still be actively hybridizing?? ), had tried  growing it in California.

FYI: Species name has been changed.. It is apparently the only species within the Passiflora section Calopathanthus  as well.

[Axel Amsterdam]

On 6/7/2024 at 6:59 PM, Tomas said:

There are conflicting opinions on the cold hardiness of this plant, does anyone grow it?
My plant unexpectedly survived a winter with -3°C without any damage

Hi Thomas, that’s great to hear. Does it flower easily in the Roman summer heat, or is flowering confined to cooling autumn temperatures?

[Tomas]

On 3/8/2025 at 7:14 AM, Axel Amsterdam said:

Hi Thomas, that’s great to hear. Does it flower easily in the Roman summer heat, or is flowering confined to cooling autumn temperatures?

I actually do not remember, but probably it flowers also in spring 

[Axel Amsterdam]

On 3/12/2025 at 1:06 PM, Tomas said:

I actually do not remember, but probably it flowers also in spring 

Can you post a picture of the whole plant Tomas? I think it’s unique to see a var. Buzios in Italy