Iris leaves should be trimmed back when they have brown tips. Cutting the flowering stalk to the rhizome will also discourage rot. The leaves usually don't need to be trimmed because they will carry on photosynthesis for next year's growth.
Yes, you can trim them back to about 3 inches in this shape "^".
yes i think
You should cut the flower stalk but leave the leaves so the iris will rebloom next year.
Iris grow and bloom anywhere from early to late Spring and early Summer. Here in south Louisiana, iris bloom in March and early April. I have one bloom left outside now (April 28th). The usual advice is to remove seed pods as soon as they form; however, I usually let one or two mature and then throw the seeds in the back of the bed to (possibly) grow new plants. Many iris varieties are known as 'walking iris' because they have a tendency to slowly grow away from where they were originally planted. I once had to cut out a thick growth of iris that was nearly impossible to dig up. Now, I try to cut back the iris in the front of the bed with a weed whacker (Weedeater(r)) to discourage spreading. Iris are very easy to grow. The Louisiana Iris likes wet areas, and are often used to dry up a wet spot in the garden.
No, you cannot regrow irises from a cut flower. Irises propagate through their rhizomes, which are underground stems, rather than from cut flowers. To grow new irises, you need to divide the rhizomes of existing plants or plant iris bulbs. Cut flowers do not have the necessary structures to produce new plants.
Iris plants spread by root. In the spring you can see this by noticing that the iris is producing a ring of new sprouts rather than from the center as planted originally. If divided (cut ring into for equal sections and replant) once in awhile the iris will live as long as you want. Each section can be planted in a new location in the garden.
Yes, you can dig up iris plants in late summer or early fall after they have finished blooming. Carefully lift the clumps, cut back the foliage, and store them in a cool, dry place until replanting in the spring. Make sure to store them with good air circulation to prevent rot.
I live just north of Houston Texas and the oleanders here have been cut back. I have seen them cut them back to about 8 inches above the ground and also cut back to about 2 feet in height.
By all means, mow them! Iit will not hurt them as the new 'berry plants' come from root runners under the ground or shoots as some people call them.
After they have flowered. Do not cut below green wood as they do not sprout from brown stems.,
It is used to cut soft tissue.
They don't last long however.