Keep an eye on it- it should perk up in the warm sunshine.
In the future, fertilizer isn't the solution to droop problems. Those are issues with the relationship between how fast a plant USES water and how fast it UPTAKES water. If you have had a lot of rain, there is a possibility of root rot. Drill extra holes in the sides of your pot to improve drainage so this doesn't happen. The plant needs the soil to dry out fairly well between waterings. I hope you added plenty of perlite to the medium.