Flower Bulbs

Flower Bulbs: Frequently Asked Questions

What are the best flower bulbs to plant in spring?
Spring is the right time to plant summer-blooming bulbs like dahlias, calla lilies, asiatic lilies, oriental lilies, gladiolus, ranunculus, and liatris. Unlike fall-planted bulbs such as tulips and daffodils, summer bulbs go in the ground after the last frost, once the soil has begun to warm up.

When should I plant flower bulbs?
Most summer bulbs should be planted in spring after the last frost date in your area, typically between March and May, depending on your growing zone. Planting as the soil warms gives roots time to establish before summer heat arrives.

What flower bulbs are best for cutting gardens?
Dahlias, calla lilies, gladiolus, ranunculus, asiatic lilies, and oriental lilies are all excellent cut flower choices. Many produce long, sturdy stems and blooms that last well in a vase, making them popular for home cutting gardens.

Can flower bulbs grow in containers?
Yes. Many summer bulbs, including calla lilies, begonias, caladiums, and dahlias, grow well in containers. They are great options for patios, balconies, and small outdoor spaces.

What growing zones do summer bulbs work in?
Most bulbs in this collection are suited to growing zones 3–10 outdoors, though specific variety ranges vary. Many can also be dug up and overwintered indoors in colder climates, then replanted the following spring.