I added your plant script to your bot "Blair" and it works.
In general you can import AIML either as a response (which is heuristically matched) or as a script (which is executed programmatically).
If you add it as a response the bot will avoid using the same response twice in a row, so will find another response.
If you add it as a script the bot will always use the same response.
Also, check that you do not have learning enabled, otherwise you will be corrupting your bot's responses.
Also, you had a "?" in your AIML pattern. In general AIML patterns should not contains punctuation, if they do it will be required for the pattern to match. Normally punctuation is ignored when matching a pattern.