Monday, 14 August 2017

Iris tuberosa

By Joy Quinn


Iris tuberosa
Iris tuberosa
Another winter flowering iris in the reticulata family Iris tuberosa [hermodactylis].  A native of the Mediterranean region, it is found in the northern Mediterranean littoral and western Europe – the dryish rocky slopes, free draining - and in wind protected spots.

Plant them deeply 8cm or so, in pots or in the garden in autumn.  They will need time to establish before blooming begins so you need to be patient. They grow best in warm sun to partial shade in a sheltered spot.  Wind protection is needed as although the spikes are only about 25cm tall they are fragile and bend easily. 

The mature tubers look like dried little fingers.  The foliage is grass like and the flower spikes appear later and are usually shorter.  The flowers are a translucent green with black falls and a light perfume.  The foliage will die down after spring and the tubers need a good baking.

They are an ideal rockery plant given wind protection and, given time to establish, will increase in number.