Thanks for the fertilizer recommendations. I think I may go for the liquid (not too good with smells!).
I think any design class is the most helpful. The concepts behind the why's (and how to communicate them) are perhaps the most valuable things I learned in school. You can learn the tools and develop the skills and techniques to use the tools on your own by doing. The rest, while nice to learn to be "well rounded," is filler/minor by comparison.
I have another question: Should I trim back the dead stalks/branches on my escallonia? I don't think they're going to come back. Some new sprouts are doing well.
Thanks again, Cheerful!