Scottish Rock Garden Club Forum

Specific Families and Genera => Iris => Topic started by: Pauli on March 01, 2014, 06:42:52 AM

Title: I. unguicularis propagation
Post by: Pauli on March 01, 2014, 06:42:52 AM

I have a big clump of var. cretensis growing in my bulb frame. After some years it is a speedy grower now and grows over Frits and Cyclamens. It is showing buds now. When is the best time to divide it (cut off the edges?). I am not sure - now in spring or after the summer rest when growth resumes?

Title: Re: I. unguicularis propagation
Post by: GordonT on March 01, 2014, 11:21:56 AM

Hello Herbert, The best time to propagate Iris unguicularis is from late summer to autumn, just when growth resumes. Getting the divisions into the ground quickly is also worthwhile. Plants have a better chance to re-establish with actively growing roots.

Title: Re: I. unguicularis propagation
Post by: johnralphcarpenter on March 01, 2014, 08:01:43 PM

I find they are very slow to re-establish. Patience required!

Title: Re: I. unguicularis propagation
Post by: Lesley Cox on March 01, 2014, 10:27:37 PM

I'd go for a time when it's in active growth too, and yes, not the easiest to re-establish the bits, and slow. I had a seed pod on mine this last spring, the first after 20 years.

Title: Re: I. unguicularis propagation
Post by: Pauli on March 02, 2014, 09:17:35 AM

Thanks for your kind help - I will wait till September!