Q.Does miracle grow tomato plant food help hostas grow
I saw a you tube video from Funkie Gardens back in Minnesota,I live in the Central Valley in California and the person speaking in the video ,said that foliar spray from this product would
really help my Empress Wu Hosta grow.Normally it only gets about a foot tall.In a fully growing season.Is this for real?

Certified GKH Gardening Expert
Foliar feeding can help if you do so carefully, and according to instructions. Many plant foods, also, have foliar feeding instructions listed on the back.
As for making them taller... This will, mostly, be a genetic constraint. Sometimes you can get a little bit more out of a plant, but the height will largely be set by genetics.
These articles will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-is-foliar-spray.htm
https://www.gardeningknowhow.com/ornamental/foliage/hosta/growing-hosta-plants.htm