I need to try this on my Rosa banksia lutescens
I have a boatload of Rugosa Alba just now popping up. I’m wondering about the possibilities.
Warren: you are going to be responsible for a number of Franken-roses 
BTW, absolutely beautiful rose.
Jeff from the literature I have read it is only effective on Diploids and Triploid. The concentration is 0.013% and becareful, its nasty stuff.
Rugosa would be ok, I apply it at the growth point (cotyledon leaf stage), before true leaves start to form.
[quote=Warren]
Jeff from the literature I have read it is only effective on Diploids and Triploid. The concentration is 0.013% and becareful, its nasty stuff.
Rugosa would be ok, I apply it at the growth point (cotyledon leaf stage), before true leaves start to form.[/quote]
Warren,did that literature explain why it is only effective on Diploids and Triploids(but not on tetraploid)?
And if it is on Triploids, we will get Hexaploids or some other Ploids(We know mixed Ploidy cells should exist ofcourse)?
Thanks Warren. Preen is available and I guess I’ll try that. The label says it’s 1.47% Trifluralin. It doesn’t list the other ingredients, so I hope it’s not Round-Up, 2-4 D or some other herbicide.
Warren,
have you considered trying out your Mutibilis x Mutibilis as a hanging basket? It appears to have most of the desirable characteristics–Low growing, spreading, free flowering, and mutibilis seems like a very tough rose, which a basket rose would require. Or perhaps making an inroad with your Hulthemias for drought tolerance. See Fara’s thread.
Jackie I have n’t thought of putting it in a hanging basket, but I have thought of using it with Eyes for You this year.