To determine if your cacti have sunburn, look for signs such as discoloration, browning, or yellowing of the skin. Sunburn can also cause the skin to become dry and shriveled. If you notice these symptoms, it is likely that your cacti have sunburn. To prevent further damage, consider moving them to a location with less direct sunlight and providing some shade during the hottest parts of the day. **

Yes, cacti can bloom. Many species of cacti produce beautiful flowers in a variety of colors, shapes, and sizes. The timing and duration of cactus blooms can vary depending on the species and growing conditions. Some cacti only bloom once a year, while others may bloom multiple times throughout the year. **

Both "cacti" and "cactuses" are accepted plural forms of the word "cactus." "Cacti" is the Latin plural form, while "cactuses" is the English plural form. Both are commonly used, so it ultimately comes down to personal preference. **

Cacti are a type of succulent plant that are well-adapted to hot and arid environments. They are known for their unique appearance, with thick, fleshy stems and spines instead of leaves. Cacti are able to store water in their stems, allowing them to survive in dry conditions. They come in a wide variety of shapes and sizes, and are often used as ornamental plants in gardens and landscapes. **

When naming your cacti, you can get creative and choose names that reflect their appearance, personality, or the environment they are in. You could also name them based on their species or origin. Some people like to give their cacti human names, while others prefer more whimsical or descriptive names. Ultimately, the choice is yours, so have fun and choose names that resonate with you and your cacti. **

Cacti typically dry out due to underwatering or inadequate humidity levels. Cacti are desert plants that are adapted to survive in arid conditions, so they require infrequent but deep watering. Ensure that you are watering your cacti thoroughly when the soil is dry and providing them with enough sunlight. Additionally, check the humidity levels in your home, as cacti prefer low humidity environments. **

It appears that your two cacti are showing signs of overwatering. The yellowing and softening of the stems indicate that the roots may be rotting due to excessive moisture in the soil. To remedy this, you should allow the soil to dry out completely before watering again and ensure that the pots have proper drainage. Additionally, you may need to repot the cacti in a well-draining soil mix to prevent further waterlogging. **

Without specific details about the situation, it's difficult to determine if something is harmful for your cacti. However, some common harmful factors for cacti include overwatering, poor drainage, extreme temperatures, and pests. It's important to research the specific needs of your cacti species and ensure they are provided with the appropriate growing conditions to thrive. If you have specific concerns or symptoms of distress in your cacti, it's best to consult with a knowledgeable plant expert for guidance. **