Coins

Crop	Cost	Profit	Coins Made/Hour
Strawberries	10	25	6.25
Soybeans	15	48	2
Raspberries	20	26	13
Eggplant	25	63	1.33
Pumpkins	30	38	4.75
Wheat	35	80	1.11
Squash	40	81	1.69
Rice	45	51	4.25
Blueberries	50	41	10.25
Aloe Vera	50	35	5.83
Cranberries	55	43	4.3
Morning Glory	60	63	5.25
Daffodils	60	75	1.56
Pattypan Squash	65	95	5.94
Peppers	70	92	3.83
Artichokes	70	134	1.4
Cotton	75	132	1.83
Bell Peppers	75	123	2.56
Red Tulips	75	84	3.5
Black Berries	75	42	10.5
Ghost Chili	80	56	9.33
Grapes	85	185	7.71
Pineapple	95	147	3.06
Tomatoes	100	73	9.13
Green Tea	105	86	8.6
Carrots	110	90	7.5
Pink Roses	120	134	2.79
Coffee	120	123	7.69
Watermelon	130	218	2.27
Potatoes	135	210	2.92
Sunflower	135	180	7.5
Cabbage	140	248	5.17
Corn	150	230	3.19
Lavender	160	224	4.67
Sugar Cane	165	74	9.25
Onion	170	105	8.75
Acorn Squash	175	83	8.3
Red Wheat	180	269	3.74
Peas	190	191	7.96
Lilies	195	174	7.25
Broccoli	200	273	5.69
Yellow Melon	205	323	3.36
Asparagus	220	137	8.56

The most profitable crop is the Raspberry. Also, keep in mind that there is a 15 coin cost to plow.