What are the latest principles for caring for French marigolds at home?

1. Light adjustment. The French marigold is a sun-loving plant, and both growth and flowering require ample sunlight; sufficient light also helps prevent the plant from becoming leggy. In hot seasons, avoid direct sunlight and provide shade around midday to cool the plant down. 2. Temperature control. After potting, the temperature can be lowered to 18°C, and after a few weeks it can be reduced to 15°C; before and after flowering it can go as low as 12-14°C. This temperature is ideal for forming a good plant shape, but in actual production it may be difficult to achieve these conditions. So generally speaking, as long as it stays above 5°C it will not suffer cold damage, and it can grow well between 10-30°C. 3. Water and fertilizer management. The key to water management is to use a well-drained medium. Although keeping the medium moist is important, allowing it to dry out appropriately before each watering is necessary; of course, the medium must not be so dry that the plant wilts. For plants grown entirely in artificial medium, apply fertilizer alternately once every 7-10 days. When winter temperatures are low, reduce the amount of fertilizer used. If ordinary soil is used as the medium, a compound fertilizer can be mixed in an appropriate amount as a base fertilizer before potting. When fertility is insufficient, apply additional fertilizer as a top dressing.