I don't get it, only thing I could think of why it's doing that is the stuff I circled;

1. Bonus - Have no idea how it got in and Idk how to get bonuses
2. Statistics - that's for Stats not traits

https://www.deviantart.com/stormdragon1234/art/What-844317262?ga_submit_new=10%3A1591243276

https://www.sylestia.com/festival/festival_spring/sylesti_garden/?player_id=129061#page_top

From the Overview:

Bonus Growth: For every Enrichment used on a growing Plant, it will receive a Bonus Point. After so many Bonus Points, the Plant will gain a Bonus Tier. There are a maximum of 2 Tiers to be earned. They offer the following rewards:

Tier 1: For both Majestic and Regular/Fabled Plants, they receive a permanent boost to their Base Stats.
Tier 2 (Regular/Fabled Plants): For Regular/Fabled Plants, they receive a bonus Carried Trait.
Tier 2 (Majestic): For Majestic Pets, they receive an even further permanent boost to their Base Stats.


And it's possible other players added Root Strengthener to your Plant. You can check the log at the bottom of the page to see what others have done.

That still doesn't answer my question about why I could put a Specific Trait on my Iridescent Jewel Sylvorpa Plant and not my Berry Fairy Kelpari Plant.

Wouldn't my Iridescent Jewel Sylvorpa Plant be in Tier 1?

For the error that you posted, you must have selected a slot for the Kelpari that doesn't have a proper Butterfly Fairy Trait. For Majestic Seeds, you can only select Trait Slots that have a Restricted Trait of the appropriate Restricted Trait Set; in this case, Butterfly Fairy.

Ok thank you