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Planting Bulbs in a Lawn

How to Plant and Care for Bulbs Naturalizing in Your Lawn

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Planting Bulbs in a Lawn
© Marie Iannotti (2007) licensed to About.com, Inc.

Planting bulbs to naturalize in your lawn is an easy way to put on a great display of spring color. However while planting the bulbs is easy, there are a few things to consider when planning and caring for bulbs planted in a lawn.


What to Consider When Choosing Bulbs to Plant in the Lawn

  • Early Risers. You want them to be done blooming when it’s time to start mowing.

  • Naturalizers (Perennializing) These bulbs will live and spread for many years, so you don’t have to plant them every fall.

  • Lesser Grades (Small size bulbs) This is one time you don’t need the biggest, most expensive grade bulb. A swath of small bulbs will but on a good show and will have time to mature and spread in your lawn.


Which Bulbs do Well Planted in Lawns

  • Crocus
  • Iris danfordiae (Dwarf Iris)
  • Iris reticulata
  • Muscari (Grape Hyacinth)
  • Scilla
  • Small Daffodils
  • Snowdrops
  • Wood anemone (Anemone nemorosa)

Many catalogs now list bulbs specifically for naturalizing.


Choosing a Spot in the Lawn to Naturalize Bulbs

Don’t plant bulbs in poor lawns or lawns that require and/or receive a lot of maintenance. In a poor site, the bulbs won’t be able to compete with the grass for limited fertility and water. In a highly maintained lawn, the excessive nitrogen fertilizer and water and use of weed killers or pesticides are not good conditions for dormant bulbs.

Bulbs will do best in lawns that can provide the same conditions bulbs like in a flower bed:

  • Good drainage
  • Fertile soil with organic matter.
  • Limited compaction
  • 6 or more hours of sun (at least in the spring, while they’re growing and blooming)
  • About 1" of water per week
  • Limited foot traffic


How to Plant Bulbs in the Lawn

Bulbs can be planted closer than you would normally space them in a garden, but they should be planted a bit deeper; generally plant them 4 times the height of the bulbs. For example: a 1" bulb should be planted 4" deep.

If you are planting a large quantity of bulbs, it is easier to slice into the lawn, as if you were lifting sod. Roll the sod out of the way, place the bulbs and roll the sod back into place.

Apply bulb fertilizer per package directions. Add to each individual planting hole or broadcast the fertilizer over the planting area.

To make your bulbs look like they spread naturally, grab a handful and let them drop from about waist height. Plant them where they land.


Caring for Bulbs in the Lawn

Water your bulbs regularly (at least 1" per week) after planting.

If you fertilize your lawn with a turf fertilizer, you should supplement the area with a bulb fertilizer. Lawn fertilizers are high in nitrogen, which is great for foliage, but the bulbs will need more phosphorous and potassium to keep going and bloom again.

You should not need to deadhead the flower stalks in the spring, after blooming.


When Can I Mow?

That’s the big question when it comes to naturalizing bulbs in your lawn. Even if the flowers stand only a few inches high, the foliage that persists will often shoot up several inches after flowering.

To keep your bulbs thriving, you need to allow the foliage to yellow and begin to die back, before mowing. This usually takes up to a month, for small bulbs.

Some bulbs, like muscari, will send up a second flush of growth in the fall. Again, you should allow this growth to die back normally before mowing, if you want the bulbs to store enough energy to bloom again next spring.


What Can I Do to Make it Look Less of a Mess, While I Wait to Mow?

For the last mowing in the fall, set the mower on its lowest setting. This will not only buy you a week or two before you need to mow in the spring, it will also allow more sun and heat to reach the bulbs.

Plant in swaths or clusters so that you can mow around the whole area. It will still look a bit untidy, but at least it will look intentional.

Related Video
Lawn Care: Fixing Bare Patches
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