when do you fertilize irises

Best answer


Early spring

People also ask


  • Should I fertilize my irises?

  • Older iris varieties will likely need less than modern cultivars, as their blooms are smaller and less abundant. If your irises do need some help, fertilize after the plants have have finished flowering. When fertilizing irises, be careful about the type of fertilizer you use.

  • When should I plant my iris bulbs?

  • Plant irises in late summer or early autumn, when overnight temperatures are 40F to 50F ( 4C to 10C) or higher. This gives them plenty of time to settle in before the winter arrives. It鈥檚 better to plant them closer to fall because tall bearded iris bulbs go dormant early to mid-summer.

  • When should I Divide my iris plants?

  • There are a few signs that you should consider dividing iris plants. The first sign that your iris need divided will be decreased blooming. Overcrowded iris rhizomes will produce fewer flowers than uncrowded iris rhizomes. If you have noticed that your iris are blooming less than they have, you may need to transplant the iris in your garden.

  • Are irises easy to grow in June?

  • Despite its divine origins, this June bloomer is rugged, reliable, and easy to grow. Plant from midsummer to fall! Here鈥檚 how to plant properly鈥攑lus, important iris plant care tips. There are some 300 species in the genus Iris. The most familiar irises are the tall (at least 28 inches) bearded irises (Iris germanica).

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