I have heard this makes them bush out and makes a sturdier plant with lots more flowers. Also 'pinching back' for the petunias. I don't mind doing it to the petunias, but the Salvia only has that one flower on top. To cut or not to cut - that is the question.
SALVIA AND PETUNIAS. Brand new plants. Just put them in the dirt - should I cut the tops off them?
Yes...pinch the petunias back just a little....it doesn't have be too drastic...just take the main tip off.
As for the salvia...cut back the main stem to the point right under the bottom flower. It won't hurt it. It will actually help the overall health of the plant. Greenhouses/nurseries will over fertilize just so the salvia plant will have that one blooming stem so buyers can see flower color.They want quick results and don't care about a nice bushy plant. Once you cut it back you will see new growth starting with a week and it will branch out so you will have more than just than one straight up flower that you have now. If you keep deadheading the salvia flower tips it will bloom for months.
Reply:what? salvia has a bunch of little flowers at the top. not just one. leave the salvia as is, unless there's dead parts to it, then cut them off. As for the petunias, yes this technique does work, however, you also need good soil mixed with some manure to get optimum growth. The nitrogen in the manure makes plants shoot up like crazy!
Reply:Yes it does help the petunias, but I would not do it to the salvia being as it has only one on top,
Reply:always -you want the initial growth to be in the roots. this is impossible with pretty blooms that need energy.
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