Plant Wee Bit Giddy® Bigleaf Hydrangea in well-drained, fertile soil with partial to full sun exposure. Water regularly to keep the soil consistently moist, especially during dry spells. Apply a balanced, slow-release fertilizer in early spring. Prune after flowering to maintain shape and encourage new growth. Adjust soil pH to influence bloom color: acidic for blue flowers, alkaline for pink. Protect from harsh winter winds and frost.