It's not easy being a farmer, even a virtual one. In the popular Facebook game, FarmVille, it takes some serious number crunching to figure out which crops will yield the biggest bucks, taking you from the farm leagues to the big leagues.

Instead of figuring out some complicated math formula to determine which seeds to plant, we'll tip you off with the top 10 cash crops in FarmVille, courtesy of James Vernon's strategy guide.

10. Carrots
Cost: 110 Coins
Growth Time: 12 Hours
Experience Gained: 1
Selling Price: 200 coins
Profit per patch: 75
Coins per hour: 6.25

9. Blueberries
Cost: 50 Coins
Growth Time: 4 Hours
Experience Gained: 1
Selling Price: 200 coins
Profit per patch: 75
Coins per hour: 6.25

8. Coffee/blackberries
Cost: 120 Coins
Growth Time: 16 Hours
Experience Gained: 1
Selling Price: 243 coins
Profit per patch: 108
Coins per hour: 6.75

7. Onions
Cost: 170 Coins
Growth Time: 12 Hours
Experience Gained: 1
Selling Price: 268 coins
Profit per patch: 83 coins
Coins per hour: 6.91

6. Sunflowers
Cost: 135 Coins
Growth Time: 1 Day
Experience Gained: 2
Selling Price: 315 coins
Profit per patch: 165
Coins per hour: 7.17

5. Tomatoes
Cost: 100 Coins
Growth Time: 8 Hours
Experience Gained: 1
Selling Price: 173coins
Profit per patch: 58
Coins per hour: 7.25

4. Sugar Cane
Cost: 165 Coins
Growth Time: 8 Hours
Experience Gained: 1
Selling Price: 239 coins
Profit per patch: 59
Coins per hour: 7.37

3. Grapes
Cost: 85 Coins
Growth Time: 1 Day
Experience Gained: 2
Selling Price: 270 coins
Profit per patch: 170
Coins per hour: 7.39

2. Asparagus
Cost: 220 Coins
Growth Time: 16 Hours
Experience Gained: 2
Selling Price: 357 coins
Profit per patch: 122
Coins per hour: 7.63

1. Peas
Cost: 190 Coins
Growth Time: 1 Day
Experience Gained: 3
Selling Price: 381 coins
Profit per patch: 176
Coins per hour: 7.65

A word of warning: you'll need to be at least level 17 to start planting these cash crops. If you're not quite there yet and want to see the breakout of all FarmVille crops, check out Vernon's complete guide here.