Q.sick lavendar plants (Grosso)
my lavender has 2 problems this year. Zhizo type fungi and crown rot in my bigger lavender. Should I add just plane lime??

Fungi growing around your Lavender can indicate your plant is not receiving enough sunlight and with both root rot and the fungi, I would say you are over watering or your soil is poorly draining.
Make sure you are not overwatering your plants.
You may need to transplant your Lavender to a location that is better suited.
Here are some links to refresh you on the care requirements.
https://www.gardeningknowhow.com/edible/herbs/lavender/lavender-in-the-garden-information-and-growing-lavender-tips.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-is-well-drained-garden-soil.htm