Hyacinthus comosus. Honest.
The robust bulbous plant Hyacinthus produces two types of luminescent flowers—the lower yellow-brown flowers are fertile, whereas the upper flowers blue-violet bell-shaped flowers are sterile. It prefers to grow on sandy slopes. The annual blue spring garden flower hyacinth with its heady scent and huge bloom must be related to the wild plant. It can be relied on to bloom year after year, giving honest enjoyment to all who pass by.
If you hold nothing back, you are said to be honest. That means speaking the truth, whether the fact be good or bad. Like the Czechoslovakian story of Good King Winceslas. The good king's generous love extended to rich and poor alike as he tried to stop war. The holy martyr died trying to save his people, honest to the end.
Proverb: Honesty is the best policy.