Iris dichotoma

[David Nicholson]

I sowed seed of Iris dichotoma (syn. Pardanthopsis dichotoma) from the SRGC Seed Ex. in February 2008 and have two strong seedlings, about 10cm high still in the seed pot. I was wondering if I should re-pot them singly now or leave them in the seed pot until they commence growth again next year. Perhaps I should be thinking about planting them out in the garden. Any help appreciated.   

[Maggi Young]

I think you could indeed be thinking about planting them out, David.
I think Jim McKenney grows this plant....... perhaps he'll chime in....
It can be a bit short-lived, I think. Iwas looking for a reference to see what the currently accepted name is and I happened upon this :

Title: The cultivation of Pardanthopsis dichotoma.
Personal Authors: Anderton, S.
Author Affiliation: Belsay Hall, Northumberland, UK.
Editors: No editors
Document Title: Plantsman

Abstract:
Seed of P. [Iris] dichotoma was sown on 1 April 1982 in a cold greenhouse and the seedlings produced were transplanted into a neutral peat-based compost in 7-cm pots. In 2 weeks true leaf fans were produced. In May the strongest seedlings were transplanted into a starved, sandy island bed in full sun and sheltered from strong winds. By early August the plants were 20 cm tall with flower buds developing. Flowers on 40- to 60-cm stalks were produced in September, with each plant having 20-30 blooms over a 4-week period. Although most flowers set seed the plants did not become exhausted and they flowered well in 1983 and 1984. A good draining soil, not too rich in nutrients, appears to be the most important cultural requirement.

[Lesley Cox]

Jim very kindly sent me some quite old seed, which germinated extremely well, just about every seed I think. I potted them individually when they were about 5cms high and though a few have damped off in our very soggy early winter, most are looking very well. I expect to plant out some in the spring when they're a little bigger.