Avg. Price Per Item: 150g
Avg. Price Per 200 Stack: 30,000g
Avg. Gathered Per Hour: 300
Total Hours to Gather (1,000,000g): 22
Keep in mind, this isn't a gold-per-hour guide. So whatever you do, don't sell a single Starlight Rose until you get 22 full (200) stacks! And even then, you don't just want to throw them all up on the Auction House. That will crash the market and prices with crash. What I recommend, is once a day, head over to the Auction House, look up the prices for Starlight Rose, and take a screenshot. Now you'll want to do this for about a week. Basically what you're doing is building a seven day analysis and with this information you'll notice that Auction House prices rise and fall just like the stock market. But there will be one day where the prices are at their peak, and that's the day you want to sell (in increments of 200).
Discipline, patience, and knowledge is the true path to wealth.