by Wendy

Trench Planting Blooms
Trench planting can result in hundreds of blooms with minimal effort.

If you’ve ever visited a botanic garden in early spring, you’re sure to have seen brilliant swaths of blooming Tulips, Daffodils and Hyacinth.

You don’t need a horticultural staff to get this look in your own yard. By trench planting spring-blooming bulbs, you can easily get 100 bulbs planted in under an hour. With just a little time and planning, you’ll have a wonderful spring gift awaiting you.

Trench planting bulbs is pretty simple:

  1. Choose your bulbs. We suggest planting at least 100 blooms for a big impact.
  2. Dig a trench to the right depth for the flower bulb you’ve chosen, between 4-8” deep.
  3. Place the bulbs in the trench, pointy side up.
  4. Cover with soil.

Come spring you’ll be greeted with bright cheery blooms.

Trench planting bulbs is easy, but if you want a little more guidance, we’ve asked our bulb experts for their advice.

Emperor Tulip Mix
Choose all one type of bulb in multiple colors for a cheery look.

Tips For Choosing Bulbs For Trench Planting

Choose Bulbs For Your Zone. Tulips, Daffodils, and Mini Iris are among the most cold-hardy bulbs, and are typically cold hardy in zones 3-7. These bulbs require a dormancy period provided by the cold temperatures of winter. If you’re in a warmer area, zones 8-10, choose Allium, Crown Imperial (Fritillaria), Wand Flower (Ixia) or Spider Lily (Lycoris).

Select fall-planted bulbs that bloom throughout the spring season. “Choose wisely, making sure you have early-spring, mid-spring, late-spring blooms,” advised Hazen Metro, High Country Gardens category manager for bulbs and perennials.

  • Early Spring-Blooming Bulbs include Crocus, Mini Iris and Wildflower Tulips.
  • Mid Spring Blooming Bulbs include Grape Hyacinth (Muscari), Hyacinth, Darwin Tulips and Daffodils.
  • Late Spring Blooming Bulbs: Allium are perfect for late-season blooms.
    • “Our 60 Days of Daffodils mix makes it simple to get Daffodil blooms for 8 weeks and our Fragrant Daffodil mix will bloom from mid to late spring,” said Metro.

      Crocus, Spring Starflowers and Snowdrops pop through the snow in early spring. If you’re using small bulbs, be sure to place them near a walkway so that you can appreciate their delicate blooms. Use larger, bolder-blooming bulbs if the planting will be viewed from a distance.

      Make sure you have enough bulbs. Based on the garden area, you’ll want to plant bulbs at the right density per square foot, depending on bulb size.

      • Smaller bulbs, such as Crocus, Grape Hyacinth (Muscari), and small blooming Allium, are around 16 bulbs per square foot.
      • For larger bulbs, such as Tulips, Daffodils, and Hyacinth, typically 6 bulbs are planted per square foot.
      • Some large bulbs--Globe Master Allium and Crown Imperial (Fritillaria) for example--are planted with as few as 3 bubs per square foot.