Although it’s very cold out in the garden, there are plenty of Salvias flowering. As many of these Salvias from Sth America come from high up in the mountains in cool rainforests, their flowering is predetermined by cool temperatures and short daylight hours..
Unfortunately this year, we’ve had quite a few severe frosts and many large leaf Salvias have been frosted.
If you have planted your Salvia in the wrong position in an exposed situation, then it might have got frosted.
As they love the shade, place these large leaved Salvias under trees or in among other shrubs that will give some shelter. If your Salvia has been frosted, make sure it is well mulched so that it has the chance to send up new shoots from the base.
Leave the unsightly frosted branches until all frosts have cleared. These blackened branches will shelter the new shoots that are now beginning. With a little warm weather and more rain, all Salvias will be bursting with new growth.
I cut my small leaved Salvias down late May, early June. With a bit of moisture from above, a bit of fertilizer and mulch, their growth has rocketed away and they are already back in flower!!. I’ve even had to start cutting back again all the exuberant side shoots.
I’ll begin cutting back my tall growing large leaf Salvias when they produce young side shoots, then taking out the large old canes, leaving all the young shoots to form a good bush that can then be shaped.