Seattle

The best time to plant Seattle dahlias in northern regions is in late spring, typically in mid-May. This allows for the soil to warm up and for the plants to establish roots before the summer heat sets in. If you do live in an area with mild winters, such as in USDA climate zone 8 or higher, then you can plant Seattle dahlias earlier in Spring. You can even leave them year-round in the ground.

It's important to choose a location with full sun exposure and well-draining soil, as dahlias prefer a warm and dry environment.

Once planted, dahlias should be watered regularly and fertilized every few weeks to promote healthy growth and vibrant blooms. By planting dahlias in the spring, you can enjoy their beautiful flowers throughout the summer and into the fall.

Seattle dahlias can be planted in the spring after the danger of frost has passed. They prefer well-draining soil with a pH of 6.0 to 7.5 and full sun exposure.

Before planting, prepare the soil by adding compost and organic matter. Plant the tubers 4-5 inches deep and 18-24 inches apart, with the "eyes" facing up. Water the tubers thoroughly after planting and keep the soil evenly moist but not waterlogged.

Stake the plants when they are about 12 inches tall to support the stems and prevent them from bending or breaking. Dahlias benefit from regular fertilization throughout the growing season to encourage strong growth and vibrant blooms.

The height of a Seattle dahlia can vary depending on the specific variety of the plant, as well as its growing conditions. Generally speaking, however, Seattle dahlias can grow to be between 3 and 5 feet tall. Some tubers may grow a little biter taller than this, while others may stay shorter.

It's also worth noting that Seattle dahlias typically require full sun, well-drained soil, and regular watering to thrive. By planting Seattle dahlias the right way, and providing the right growing conditions, you can enjoy beautiful, towering dahlias in your summer garden.

Yes, it is recommended to dig up Seattle dahlias before winter to protect them from cold temperatures and frost. Dahlia tubers are not frost-hardy and can be damaged or killed by freezing temperatures.

By digging up the tubers and storing them in a cool, dry place, you can ensure their survival and healthy growth in the following season.
It is recommended to wait until after the first frost to dig up the tubers, as this will signal the plant to begin storing energy in the tubers. After digging up the tubers, they should be cleaned, dried, and stored in a cool, dry place until planting season.

If you live in a warmer area, such as in USDA climate zone 8 or higher, you can leave your Seattle dahlias year-round in the ground.