Trachycarpus Discoloration

[Leelanau Palms]

Picture is of one of my trachycarpus fortunei, which as been thriving in a pot since 2022. It had a great winter indoors with 2 new spears pushing when it was moved outside about 2 weeks ago. Outdoor temps 60 day, 45 night. Watered regularly. Usual fertilizer program continued. New spear opening with this color pattern. Rest of fronds deep healthy green. Frond is not back lit in the picture. Why does it look this way?

[SeanK]

Two thoughts.

1. It will turn normal in two weeks

2. It is variegated.

[Leelanau Palms]

I was thinking it was a cold related nutrient deficiency but unsure of the details.

[Chester B]

From winter, they can do this.  It will green up once its been exposed to the sun for a couple of weeks.

[Leelanau Palms]

Thanks to you both. They have not done this in the transition to outdoors in prior years. Maybe this year they had more active/faster growth underway when they were moved, and maybe they were moved out earlier (since it's seemed milder). 

[Chester B]

My in ground ones occasionally have a yellow frond in late winter. 

[Leelanau Palms]

The frond color has indeed normalized now. Thanks for the input. Seems warm and sunlight were the trick. Seems others here with trachys in pots going outside had similar issues.