Q.Salvias that are doing poorly
Our salvias have become woody and brittle with few flowers. They bloomed nicely when first planted about 3 years ago and were cut back to about 50% when the blooms were done. However, they have never returned to their prior condition, and blooms are skimpy. They seemed to improve only a bit when fertilized with Grow Power.
Downtoearthdigs
Answered on October 20, 2015
Keeping the plant dead headed or trimming the plant back by 1/3 after blooming will help the plant.
Make sure the soil is drying slightly between waterings.
Using a slow release fertilizer in the spring will help the plants through the bloom season. Over fertilizing can lead to lots of leaves and no flowers.
https://www.gardeningknowhow.com/ornamental/flowers/salvia/growing-different-salvia-types.htm
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