June 25, 2015 · Deadhead / Garden Review / GARDENING BASICS

Deadheading

Deadhead your flowers

What is deadheading? Deadheading is removing dead or spent flowers off your plants. This keeps your flower bed fresh looking and well manicured throughout the season.

It is important to deadhead for several reasons. Not only does it improve the looks of your flowers bed, but it can lenghten bloom time and may even give you a second blooming.  By pinching or cutting spent flowers, the plants redirects its energy back to more flower production instead of seed production. The more you discourage seed production the harder the plant will try produce flowers. Deadheading also keeps unwanted perennials from spreading all over your flower bed.

When you deadhead, it stimulates new growth and plants will be stronger, bushier and healthier. For best results cut plants back after they have bloomed for 6 weeks which by this time tend to get leggy with less flowers.

Depending on the type of plants, the general guidelines to deadheading (which may vary with some plants) is accomplished the following ways.

Single individual flowers such as bee balm, delphinium, cosmos, larkspur, phlox, zinnias, Shasta daisies, salvia can be cut back to the strong side buds where they will make new flowers.

With tall individual flowers such as columbine, hollyhocks, foxglove, balloon flowers, gladiolus, faded florets should be pinched off along the stem. This will promote larger flowers as the new buds open. Once all the flowers are finished blooming, cut the stem to a leaf bud to encourage smaller side shoots.When the plant is finished blooming cut the stem down to the base. It may re-bloom later with smaller flowers from the base.

For small bushy plants that produce lots of blooms such as alyssum, lobelia, dianthus, and thread leaf coreopsis, it is best to snip the drying/faded heads with scissors or shears when the blooming season is half over. This is much faster than trying the tedious task of clipping each flower. The plant may look a little scrawny but will recover in time for fall bloom.

As you admire your colorful flowerbed outside, don’t hesitate to pick a bouquet to bring inside to enjoy. It’s good for the plant and good for the soul.

From the reader archive

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10 Comments

  1. Sue - September 3, 2004 at 12:15 pm

    My liatris have already bloomed . Am I supposed to cut the large stalk back or not.

    Yes,you can cut it back. The stalk only blooms once.

    Reply
  2. Rhikki - May 16, 2005 at 3:36 pm

    I am very interested in planting some foxgloves, I was told they are a perennial, but someone told me they are biennial. What is the difference and how do I keep them growing strong

    They are both ,true species of Digitalis are perennials, but the most commonly grown are biennial (blooms every other year). Mine blooms every year(perennial). Foxglove needs rich well drained soil, part shade to sun. If conditions are right they will reseed. All parts of this plant are poisonous.

    Reply
  3. Gail - May 31, 2005 at 3:39 pm

    I just purchased (3) Hymenoxys Acaulis(Angelita Daisy) how do I care for it, does it need to be deadheaded? How do you deadhead it?

    Angelita daisy is a great xeriscape plant that tolerates dry conditions. Great for banks and rock gardens in groups or individual mounds. Grow it in full sun. Don’t overwater it. Yes, they do benefit from deadheading. To keep it blooming all season long, remove the flower spikes/old flower heads before they produce seeds.

    Reply
  4. Becky - June 8, 2005 at 1:27 pm

    When deadheading does it matter if you pinch or cut the flower off.

    No, its usually what is easier. Sometimes the stems are so woody that you can’t pinch the flower head off you have to cut it.

    Reply
  5. Flo - June 22, 2005 at 3:43 am

    Balloon Flowers– Mine are already close to 3 feet tall. Can these be cut back before they bud?

    You can cut them back but it should be done in May to early June and then blooming will be slowed up to 2 weeks. In late June/July -blooming is delayed for 4 wks.

    Reply
  6. Jeanine - July 20, 2006 at 2:01 am

    I am wondering if I should mow my lawn. We have had an extended period of hot and dry weather and I left the lawn long on purpose because I had heard the forcast. It still has not rained and the extended forcast calls for hot and dry weather, but the lawn is getting pretty shaggy. What would be best –to leave it or give up and mow? Will it be more damaging to mow it?

    When the weather is hot and dry it is best to let the grass grow as the long grass blades help to shade the roots and conserve the little moisture you have in the soil. Probably better not to mow but if you can’t stand the looks of it and choose to mow, set the blade on a high and endure the dust storm.

    Reply
  7. Susan - May 26, 2007 at 3:46 pm

    How far down the stem should you deadhead a dianthus?

    Cut the stem down to the first set of leaves, which will send out more growth producing more flowers.

    Reply
  8. Pam - June 11, 2007 at 10:43 pm

    Should I deadhead my Gerbera Daisy and where,
    at the top or base of stem?

    Yes, its a good idea to remove the old flower so that it doesn’t go to seed. Seed production can reduce the number of new flowers. Simply pinch or cut off the stem close to the the base of the stem trying not to disturb the leaves inside the crown or cut off the dead flower head. Works either way. more info on Gerbera daisy

    Reply
  9. Cheryl - June 16, 2007 at 4:36 pm

    Are you supposed to deadhead an spring to fall blooming Clematis?

    If you have a young plant you may want to pinch off the spent flowers to keep them from producing seedheads. Seed production drains a lot of energy from a young plant. By cutting off the seedhead you can get more flowers and sometimes (depending on the variety) a second smaller blooming later in the season. If you have an older established clematis, then deadheading is not necessary unless you find the seedhead unattractive .more on Clematis

    Reply
  10. Bonnie - October 3, 2009 at 2:40 pm

    How do I deadhead a gloxinia? Do I cut the stem all the way off, or do I just cut the top of the stem where the flower sits?

    HI Bonnie
    Cut the stem all the way off. as close to the center without damaging it.

    Reply

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