spiderwort flowers

Question

Why are my spiderwort flowers a very pale purple this year? The first year I planted my spiderwort they were a deep purple. Last year and this year the flowers are a very pale purple. Anything I can do to bring them back to their rich purple color?

Answer 1

https://www.gardeningknowhow.com/ornamental/flowers/spiderwort/growing-spiderworts.htm

If your Spiderwort is a hybrid cultivator it could convert back to a different color.
There is nothing your can feed them that will change the color.