Faye
Faye
  • Hometalker
  • Marietta, GA
Asked on Apr 22, 2012

Can anyone tell me why only half of my bearded irises will bloom.

Sue KieneDORLISSusan S
+7

Answered

They're planted in groups but only 1or 2 will blossom. The rest is foliage.
10 answers
  • Joy M
    on Apr 22, 2012

    Could be they are planted too deep. Roots should sow slightly.

  • Susan S
    on Apr 22, 2012

    Iris like to have their rhizomes slightly above soil line so if they're completely underground or heavily mulched that could be part of the reason. I've found the less I mess with 'em the better they like it. I've even thrown some in the woods when I thinned them out and they still managed to live!!

  • Douglas Hunt
    on Apr 22, 2012

    Joy and Susan are correct about iris planting depth. Make sure you are not using a fertilizer that is high in nitrogen, which encourages foliage growth at the expense of blooms. If they continue to be recalcitrant, you may have to pull them out and experiment with other irises to determine the ones that are the best bloomers in your particular garden conditions.

  • Faye
    on Apr 26, 2012

    Thanks guys. I've noticed they are quite under quite a bit of mulch.

  • Susan S
    on Apr 27, 2012

    Yeah - they kinda prefer being able to wiggle their toes in the dirt!! Move the mulch - I am much further north than you and I just let nature take its course - whatever leaves fall in the Iris bed is all the mulching I give them - then in late spring I clean all the dead stuff & rake the leaves and off they go!!! By next week they'll really be busting out!!

  • Douglas Hunt
    on Apr 27, 2012

    Yes, pull off all the mulch, Faye.

  • Faye
    on May 4, 2012

    Thanks guys! my mulch came from having a tree cut down in the back yard and mulch flew everywhere with the stump grinding. Mulch removed!

  • Susan S
    on May 4, 2012

    Good Girl!! You get the GOLD STAR today!! ;~}

  • DORLIS
    on Jul 12, 2015

    I was told by a breeder that they like the top third of their roots in the sun. because of all the rain we have had this year, weeds have overgrown some of them and they did not bloom.

  • Sue Kiene
    on May 14, 2016

    Yes they are pretty picky about having their feet covered. I let someone help me break up a couple of large clumps of irises and I guess I did not make myself clear enough because the ones I moved bloomed this year. The ones he moved did not. Guess what I get to do. Oh well I have lots of healthy green.

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