Q&A: ทำไมใบโหระพา (Basil) ของฉันถึงมีสีเหลือง? และต้องทำยังไงดี?

English

Q1: I’m growing basil and noticed the leaves in the center are yellow (as pictured). Is this normal?

(From a question by Jennifer Bronson Hano)

A: Yellowing leaves in the center can be an indicator of several issues. Based on the experience of most growers, it’s often related to a nutrient deficiency or the plant adjusting to the grow light. It’s a common issue that is easily manageable!

Q2: When should I start adding Nutrients to my basil seedlings?

A: There are two common approaches used by growers:

1. Feed from Day One: Some growers choose to add nutrients right from the first day and often use a relatively intense light setting. This can help the young plants grow strong and develop very well.
2. Wait for “True Leaves”: Most experts recommend that you should start feeding as soon as the first plant begins to show “True Leaves.” You don’t need to wait for all the plants to have them—the first seedling that shows true leaves is enough of a signal to start feeding!

Q3: How can I fix the problem of yellowing leaves in the center?

A: If your basil is showing yellowing in the center, try these tips:

1. ✅ Increase Nutrients: Adding the appropriate nutrients can quickly correct the yellowing caused by a lack of essential elements.
2. 💡 Adjust the Light (if using a grow light): If you are running your light at a low level, try increasing it to a higher light intensity. This allows the plants to get used to concentrated light early on, which is a successful strategy for many experienced growers.
3. 🌱 Observe ‘True Leaves’: If only the first set of tiny leaves are shriveling, that is normal. However, if the second set of leaves starts to wilt and the plant already has true leaves, quickly increase the nutrients (as per Q2).

✨ LetPot Pro Tip Summary for Yellow Basil!

Yellowing in the center of the basil plant is often a sign of nutrient deficiency and possibly a lack of light intensity. Remember to observe the ‘True Leaves’ to decide the best time to start feeding your young basil plants! They will definitely return to their bright green, healthy color!