But unlike the manufactured F1 types, these new varieties, through rouging and other growing techniques, can be quickly stabilized--often in as little as two or three generations--and will then breed true
The majority of these varieties can only be reproduced by vegetative reproduction, such as cuttings, as seeds do not breed true
and often the exact parentage is unknown - Leyland Cypress being a common example.
Tufted Araucanas, therefore, are always genetically impure, i.e., they don't breed true
and will always produce a percentage of "cleanfaced" offspring.
Digitalis can't be relied upon to breed true
from seed - particularly with so many plants growing wild and entering the gene pool via bees and other insects - but they will do their best to fill the garden with new plants every year.
This establishes that the breed can breed true
. Princess Gem's height at birth was 14 inches and she weighed just 22 pounds.
It is the first blue to breed true
from seed and will be available in next year's catalogue at pounds 1.99 for 40 seeds.
The plants, apart from H ventricosa and a couple of others, do not breed true
from seed so you could well end up with a range of unique plants which could include a few stunners if you are lucky.