• Choose a sunny spot. Dahlias bloom best in full sun.
• To give your dahlias the best possible start, improve the soil by adding compost and an all purpose (5-10-5) granular fertilizer when planting.
• Dahlia tubers should be planted 4-6" deep. Position the tubers so the sprouts are facing up. If there are no sprouts, plant the tubers horizontally.
• Once your dahlias are 8-10" tall, start fertilizing them with liquid fertilizer every two to three weeks.
• When the first flower buds appear, cut back a couple of the tallest stems. This will help the plant fill out and produce more flowers.