It sounds like your gardenias have grown quite a bit over the years! Pruning can definitely help rejuvenate your plants and encourage fuller growth where it's needed. Here's a quick guide on how to prune your gardenias:
1. Prune after blooming: The best time to prune gardenias is right after they bloom in the summer⁴. This timing allows you to shape the plant without risking the loss of next year's buds.
2. Use sharp shears: Make sure to use sharp pruning shears for clean cuts, which help prevent disease⁶.
3. Don't prune too much: Never cut more than one-third of the plant at a time to avoid shocking the bush⁶.
4. Shape evenly: Trim the plant to maintain its natural shape and remove any dead or overlapping branches to improve sunlight exposure².
For a step-by-step guide and more detailed instructions, check out this helpful [
pruning tutorial]. It covers everything you need to know to get your gardenias back into shape and looking beautiful again. Happy gardening!