GREP to change character after glyph

Hey there. Here's an example of a typical 1/4 page in a catalogue I design frequently. The text at the bottom is currently  2 paragraph styles (title then body text) and the bold at the end is applied manually. Is it possible for a GREP to make everything that appears after the 'height arrow' in my bold character style? The arrow isn't within the font but shows up as

' ^a ' (including the space either side) when I paste it into the find field.

So basically anything that appears after that arrow should be in my bold character style. Sometimes there's a flowering period, but not always, and sometimes a delivery period. But it's all in bold from the arrow until the end of the paragraph.

Thanks in advance!