Saturday, January 31, 2026

Petunia Haircut

Last summer's petunia was threating to break out of its assigned space by the window and overtake the garage, so it got a haircut today. The last trim was in mid-November when it was moved from the greenhouse to the garage. Most of the foliage in the first image is new since then. The second image shows the pot trimmed back to about where it was 10 weeks ago. After the carnage, I was able to verify that there are three plants in the pot.

I had great hopes for the hormone-treated petunia cutting I took Dec. 31, but it was obviously fading away in the past week. I pulled it and there were no roots. So I'm officially 1-for-2 using rooting hormone on petunias, vs. 0-for-9 without. It's too soon to say on the cutting taken Jan. 26. But the first treated cutting taken Nov. 15 is a roaring success.

It's three more months until I can move these to the greenhouse so I don't believe the two thriving pots need any fertilizer. Based on what has happened so far this winter, the big pot probably will need another haircut in early April, at which time I will hit it with fertilizer. The smaller pot is so lush and green that it might get its first haircut around the same time if not before. I might even repot it.

Before
After
New cuttings. I used plastic cups so I can see if roots develop.
Nov. 15 cutting, growing like crazy. It hasn't produced many blooms lately but is packing on the leaves.

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