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phloxy777

Will Candytuft choke my other perennials? Newbie

7 years ago

Hi everyone,

I am starting a flower bed that already has established knockout roses, a butterfly bush, 2 dwarf burning bushes (Which I plan to relocate), creeping phlox (small area), and a few dwarf azaleas.


I have bought the following and plan to plant tomorrow. 8 Iberis Semperverins (Candytuft), 6 Royal Candles (Spike Speedwall Veronica) to go in front of the knockouts. Also, 2 dwarf Garden Phlox, and 1 Foxglove.


I do have a vision but I do want to disperse the Candytuft throughout the garden bed. My question is, is will this Candytuft choke out my other plants? When looking online, all I see are only candytufts and this has me worried that they won't play well with others? Also, will they help with weed control? Thanks so much

Comments (11)

  • 7 years ago

    Thanks... I wasn't sure if I wanted foxglove so I just want to experiment lol. I plant to put it out of the way somewhere.

    Here is the size if my garden bed. It's a rough picture. You can't see the depth and this was when we were painting a few years back so excuse the mess. I am planning to expand the bed outward. There are a lot of things I need to do.

    Do you think I bought too many candytuft?


  • 7 years ago

    Quick answer......yes!! Reread what floral said.....a low but spreading groundcover plant. Here, a single plant of candytuft can cover 9 square feet (3'x3') or more.

    Phloxy thanked gardengal48 (PNW Z8/9)
  • 7 years ago
    last modified: 7 years ago

    @ Gardengal48, thanks for the dimensions...but on the tag and when I look them up, it says that they grow about 18" wide. Also, I thought they were border plants...No? I guess the information I read on the internet is incorrect. I am a newbie so thanks for understanding that :-)

    I've also extended my front bed about 2ft to accommodate. Yes, I love candytuft!

  • 7 years ago

    @ floral_UK, It does make sense to plant in odd numbers for a more aesthetically pleasing garden. I will definitely incorporate that in my new plans. Thanks so much for the advice. Any and all the help I can get is appreciated.

  • 7 years ago

    Lots of sites on the Internet tend to generalize, especially when it comes to mature plant sizes, so I tend to take them with a grain of salt. Figure a flattish circle (roughly) with a 3' diameter....that is a normal size for an established plant of candytuft in my area. Although there is one down the street from me that cascades over a rock wall that is at least 3' across but more than 6' in length :-)

    Phloxy thanked gardengal48 (PNW Z8/9)
  • 7 years ago

    Thanks, Gardengal48. I may need to do some rearranging and giving away as well, lol. I'm glad I asked ;-)

  • 7 years ago

    It does spread but I have found it to be a friendly companion. Seems to mingle nicely vs overpowering. I have mine in different areas but it lives harmoniously with roses, azaleas, hardy geranium, salvias and phlox

    Phloxy thanked oursteelers 8B PNW
  • 7 years ago

    Thank you for responding. I have decided to give a few away. I now have 3 candytuft instead of 8. Maybe in the future I will decide to do some further landscaping but for now... 3 is my limit. They are very beautiful plants

  • 7 years ago

    I have decided to give a few candytuft away and plant more foxgloves. I have also incorporated multiples of odd number plants.

    I recently dug my beds out about a foot and added about 4ft extra on one side... Making just that space a rock garden. I am enjoying my plants much, much more. I can't seem to stay out of the garden picking weeds. It is truly a very fun activity that I can see flourishing.

    The garden plan in my head seems to never stop thinking of new ideas. I am 37. I have always had a soft spot for plants but was a little too intimidating to grow anything. I can't seem to stop obsessing now and researching. There are so many things to learn it blows my mind. I can also see myself in the future having a beautiful design I like, and then a few years later completely changing it. I guess that is the beautiful thing about gardening. It is ever evolving and if I dare say, a bit chaotic. I guess that is the point though, right?

  • 7 years ago

    I don’t know where you are, but I haven’t ever found my perennial candytuft Iberis sempervirens to get much over a foot, but I have long winters and a relatively short growing season and it sometimes needs to do some growing in spring. It plays well with others, so if you still have all 8, you could use some in the bed front of the portico, and some in the beds on either side to create some continuity and year round evergreen present ing all the beds. I am glad you are making the beds deeper; I would want them a minimum of 6’ deep front to back to balance the size of the building.

    Phloxy thanked NHBabs z4b-5a NH
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