Q.Problem with my guara plant.
My guara’s leaves are turning red on the edges and dying starting at the bottom undersid of the plant. Causes?
Depending on the variety that you are growing, I believe this is a normal color pattern for the leaves on your plant.
Check the plant for any signs of pests or spots or marks on the leaves.
If this is a new planting, make sure your are adequately watering. Once established they are generally quite drought tolerant.
A new planting needs time to send the tap root deep into the soil.
Here is a link to refresh you on the care requirements.
https://www.gardeningknowhow.com/ornamental/flowers/gaura/growing-gaura-plants.htm