vegetative propagation TOW

Diane Whitehead
Mon, 05 May 2003 23:09:56 PDT
Janis Ruksans' short talk on propagation at the Western Winter Study 
Weekend in Vancouver, British Columbia, Canada,  first weekend of 
March, 2003.

He uses charcoal as a fungicide.  He uses a meat grinder to grind up 
pieces from the fire.

He also uses a light solution of formaldehyde, and cleans his knife 
in a stronger solution of it.

Juno Iris
Broken bits of root can regenerate and bloom the following year. 
Some won't grow if broken accidentally but will be OK if carefully 
cut and put in a box of sand.

1. Many Central Asian frits don't increase much.  (F. stenanthera, F. 
ariana, etc. ) Dig up the bulb and break the two sections.  Dry a 
bit, then cover with pure sand.  One side will have many small 
bulbils, the other side will flower.  You can do this every year.

2. The imperialis group increases well.  Every year each bulb 
produces one, two or three new bulbs, except for F. eduardii which 
has better, brighter colour, but the bulb never increases, and it 
takes 7 to 8 years to flower from seed. 

He was sent several bulbs of a new colour form of F. persica, F. 
Ivory Bells, so he could experiment and see how it could be 
propagated.  He tried every which way and none worked until he sliced 
it horizontally.  The bottom part regrows its missing top, and the 
top produces 20 to 30 small bulbs which will flower in 3 years.  Now 
his price of this is down to $35 U.S.  I forget how much it was 
before he experimented.

This horizontal slicing will work with all frits with large bulbs, 
like F. raddeana and eduardii.  [I'm not sure about this, though, as 
he mentioned earlier in the talk, and also wrote in his catalogue 
that eduardii won't increase vegetatively.  Maybe he is still 
experimenting with it.  Maybe he meant that the horizontal division 
might work with eduardii.]

Scilla bucharica and Muscari - cut 1/3 cut across the bottom.

Diane Whitehead  Victoria, British Columbia, Canada
maritime zone 8
cool mediterranean climate (dry summer, rainy winter - 68 cm annually)
sandy soil

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