Dahlia ‘Lavender Perfection’ is a spectacular “dinnerplate” variety known for its massive, fully double blooms that measure 8 to 10 inches (20-25 cm) across. Featuring vibrant lilac-pink to soft lavender petals, these tall 3 to 4-foot plants bloom from midsummer until the first frost. They thrive in full sun and rich, well-draining soil. [1, 2, 3, 4]
Here are some quick, essential facts about growing and caring for them:
- Bloom Type: Formal Decorative (FD)—flat, broad, layered petals that gradually recurve toward the stem. [1]
- Planting Time: Plant tubers outdoors after the last spring frost once the soil has warmed up (e.g., April to May depending on your location). [1, 2]
- Spacing & Depth: Place tubers 2 to 3 inches (5-8 cm) below the surface with the stem facing up, spaced 18 to 24 inches apart. [1, 2]
- Maintenance: Pinch the plant when it reaches 12 to 18 inches tall to promote bushier growth, and provide stakes or support to hold the heavy stems. [1, 2, 3]
- Cut Flowers: Excellent for floral arrangements due to their dramatic size and long-lasting blooms. [1, 2]
Because they are not cold-hardy, you will need to dig up the tubers in late autumn before the first hard freeze and store them in a cool, dry, and dark location if you live in a frosty climate. [1]
