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Passiflora antioquiensis germination/growing tips | Passiflora antioquiensis clone 1 | Passiflora antioquiensis clone 2

Passiflora antioquiensis

Buy P. antioquiensis at Roseland House UK
 

 
 

Passiflora antioquiensis
(Tacsonia/Colombiana)
Antioquia, Colombia 1860
Min 0°C 32°F
Max 38°C 100°F?
Jan-Nov

This Passiflora antioquiensis seedling is grown from seed kindly supplied by a contact in New Zealand. It is showing the typical distinctive drooping growing tip which is very different from P. x exoniensis, often misidentified as P. antioquiensis. Note one of the leaves is four lobed. I shared this seed widely but it only came up for few people, including Dr Les King, clone 1 & Charlie Pridham at Roseland House clone 2.

P. antioquiensis is from the mountainous cloud forest Antioquia area (from native words meaning the "hill or mountain of gold") of Colombia around Medellin. This is a beautiful area of rolling green hills and distant mountains. It is close to the equator with no distinct seasons, though it tends to be more rainy with afternoon downpours in the latter half of the year. The natural climate for P. antioquiensis is a cloudy wet eternal Spring with daytime temperatures under 29°C/85°F & even in December at night no lower than 6°C/43°F.

It is a fussy plant, but far less so than many imagine, that wilts easily & enjoys high humidity (which reduces transpiration) & needs heavy watering. It will not tolerate a hard frost in UK or too much direct sun or heat when grown in USA. With the lower light intensity in UK however direct sun is not a problem providing that it is well watered at all times. I have measured 90°F/32°C on it and Henk Wouters reports that it will survive over 38° C/100° F. Nevertheless it is better grown in shade. What will finish it and other Tacsonia are the roots overheating in a plastic pot in full sun. If it overheats it will dry out and die very quickly especially if there is insufficient temperature drop at night.  Many Passiflora can come back from being almost totally dried out but Tacsonia do not seem to have evolved needing this ability. It is also difficult to root cuttings as is P. parritae.

P. antioquiensis will only grow well outside year round in a few places outside it's natural habitat. To date in San Francisco at Strybing Arboretum (one clone only) & in Aaron Gilbert's collection, Northland in New Zealand & Dr. Les King advises that it is also grown as a food crop in Madeira. It flowers January to the beginning of winter. It is thought to be dimorphic with one or 3 lobed leaves but it appears that when grown from seed the foliage, particularly when juvenile, can throw up occasional 4-5 lobed leaves. There does appear to be some clone variation. It is easy to grow in Uk over the summer months but will not survive even light frosts. I hardiness tested it last winter & even well protected with fleece in a mild winter of min -3°C 27°F it died.