I have Siberian Iiris in my garden and am not sure if this type of iris needs to be cut down after blooming. Can you please advise if I should, when and how short?
After blooming, cut down the bloom stalk. Leave the foliage to go brown; after it has withered, cut it all back to 1 - 2" above ground. Here's an article with general care information: https://www.gardeningknowhow.com/ornamental/bulbs/iris/growing-siberian-iris.htm
I received a set of Siberian irises from my mother-in-law about 27 years ago. Hers were white as far back as I remember. I transplanted them to our home, then to an apartment for a summer, then to our new house (16 years ago). They have always been white. I thinned the patch out last year and moved a few roots to the front of the house. The white ones bloomed about 3 weeks ago, and yesterday the front ones bloomed - only BRIGHT yellow! Nothing pale or bashful about that color. I love it. My question is why? There was some round-up sprayed near there but not on the plant. It does get more shade, northwest exposure versus southeast. I have pictures if you would like to see them. Thank you! Mary McNeill email@example.com
Iris do not change color, but growing conditions can make colors more or less vibrant.
Over spray of a herbicide have been reported to change colors temporarily.
Iris can actually drop seed and sprout new flowers that may not be true to the parent flower due to bee pollination from other iris color.
It is reported that their are a few varieties that will 'sport' and new color.
The variety Honorabile has a history of this rare event.
It is also possible that a garden area had previous rhizomes and you had original yellow Iris that had never bloomed until they were lifted and moved.
They have all flopped to the ground. I don't think I should cut them till they are all yellow, right? This is a large mass that I plan to transplant early next spring but the mass of green leaves laying all over is unsightly.
I would certainly go ahead and trim them back to about 4 inches high. This will clean up the garden bed and still leave enough greens.
My Siberian irises are too tall. I live in northern Florida and they are the same all year long, so not sure how to trim them back?
There is really nothing that you can do to reduce the height of your Iris stalks. You can stake them if they tend to fall over.
Hybridizers do try to produce plants that grow a sturdy stalk. There are also many cultivators that are smaller or even dwarf varieties.
You can dead head the flowers after they are spent and cut down the flower stalks after they have completed blooming.
What is the bst way to plant the rhizome with roots. Should the rhizomes,be vovered with soul? How deep and can several be planted togeter as daffodil bulbs
Cover the rhizomes with 2 to 3 inches of soil and space them about 2 feet apart.
This allows enough space for the iris to spread.
I would plant your Daffodils near the Iris but don't plant them directly next to each other.
You will need to lift and divide both the Iris and Daffodils at times and if they are planted separately, this task will be much easier.
I planted Siberia iris about ten years ago. I seem to remember them in bloom that 1st year, but they have never bloomed since. As usual, this year the green leaves (stalks?)have emerged but that'should all. What can I do? Thanks
Diane, after giving Siberian iris a year or two to settle in, if there are no flowers it's usually because the plants aren't getting enough sunlight. They need at least 6 hours of sun and are happiest with full sun.
If that's not the issue, are they planted in alkaline soil? They prefer neutral to slightly acid pH.
Some of my flowers have changed the color of their blooms, siberian iris changed from purple to yellow, all colors of iris changed to purple and all colors of tiger Lily turned to orange, different colors of canna blooms changed to orange. MY various colors of tulips turned to red. Why is this happening?
There can be different reasons for color changes in flowers, environmental changes and even accidental herbicide drift can cause the flowers colors to change.
Here are some articles with more information.