Greenhouse propagators

General
1

I have a cool hobby greenhouse where I have been rooting mini and polyantha cuttings the past couple of years. It is 60* in there today (Feb 25) and I noticed a few aphids on the top new growth. In previous years I have not seen aphids in there until April and my action plan is to water spray everything and move it outdoors. This year it is about 4-6 weeks until I can safely put them outside. I did a spray tank of water washing today and will do that again tomorrow.

What do other greenhouse growers do? The rooted cuttings here are looking good.

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2

Is the early morning or early evening the best time to take a cutting for propagation? Like we do when we cut roses to take to a rose show, or for cuttings does it really matter?

3

I’ve done both with similar results. I prefer late mornings hours after I’ve watered.

4

Thanks Jim - good to hear from you. Late morning is what I have been doing. Always enjoyed having your participation in the Tacoma Rose Society meeting via Zoom.

Take care,
John Moe

| JimBeardsley
June 5 |

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I’ve done both with similar results. I prefer late mornings hours after I’ve watered.

5

Do polyanthas still have to abide by the “pencil-thickness” guideline?

I have one that has thin, wiry stems that I’ll prune. Maybe 2-3mm thick but I do not want to waste my time if it’ll just rot

6

I just use the thickest hard wood from the current years growth. I use a 10” came however.

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