All About Gardening
Too much fertilizer can end up damaging the root system, which results in burnt looking leaves.
This could be a sign of not enough sun, the wrong fertilizer, or incorrect amount of water.
This is typically a combination of too much sun and not enough water.
This is likely a lack of phosphorus in your soil. It can also occur if you've been trying to change the flowers color.
Lack of water and too much wilting. Adding more mulch can help keep the soil most.