How do I make my Iris's multiply?

Basically leave them alone, and they WILL do it on their own. But to ensure healthy growth for the plant to grow a larger rhizome which will soon cause the plant to multiply, do this: Add compost (read: horse manure, especially, once it's not "hot" anymore) and peat moss, dug into the dirt around your irises. If it's easier, which it may be, lift your irises and amend the flowerbed with some organic material. They are hungry little plants, and seem to prefer manure to any other fertilizer.

Then, when your plants are becoming crowded in the flowerbed, you'll want to do this:

"PLANTING: Plant root divisions in the early spring or just after blooming. Early fall planting is successful in all but the most northern sections of the country. Divide clumps (as shown in diagram) and plant single rhizomes, spacing them 8 to 18 inches apart according to effect desired. Spade planting hole about 10 inches deep and work 1 tablespoonful of fertilizer into the soil in the bottom of the hole. If the soil is heavy, some drainage material such as gravel or broken pottery should be placed in the hole. Fill the hole with the loose soil and place the root section so that it will not be covered more than 1 inch deep. Most Beardless Irises can also be propagated from seeds."



Happy Gardening!

How do I make my Iris's multiply?
try this site

http://www.auburn.edu/~chambvj/iricare.h...

What time of the year should irises be divided?

Bearded irises typically continue underground growth for a month or more after spring bloom season, then enter a dormant period, which is a good time to divide. This is in July in the northern USA, extends to mid August in much of the middle section, and as far as early September for parts of the south. Replanting at this time gives the plants time to grow in the fall and develop good root systems.



Siberian Irises and Japanese Irises often work well replanted a month or so later, since they are planted deeper. Dividing these beardless varieties soon after bloom season works well in areas where heat and drought is not expected over the following month or two. Spring division can also work well in areas where the soil is not too wet to work during that period. They also require regular watering for the remainder of their establishment year.







6. How do I divide them?

Dig up the clump, being careful to include at least a few inches of roots with it. Shake off or remove excess soil. Most clumps can be pulled apart by hand, but with some well established and matted Siberian Iris clumps, you may need a pair of pitchforks to pry portions apart. You'll notice that the fan is connected to a bulge in the rhizome, and then there are necks and bulges corresponding to previous growth periods (one per year in many cases). As a general rule, save only the fan and its associated rhizome part, discarding previous growth. Wash them off to minimize transfer of soil-borne diseases. If they are beardless, keep them wet from the time you dig them until replanting. Bearded ones can be dried, and even do better with a drying out period in that it can minimize fungus problems. Cut the leaves back to 6 inches (shorter on SDBs, longer on vigorous TBs). If you're doing multiple clumps, it helps to write the variety name on a leaf with a permanent marker until it is replanted in its new mapped and/or labeled location.



7. How do I replant them?

Choose a sunny spot, one with good drainage if you are planting dry-land varieties such as bearded ones. It's best if the rhizomes can be replanted within a few days, but two weeks will do little harm, and there have been cases where they have survived a year in a cool dry place. Soak the rhizomes and roots for a few hours before replanting. If soft rot may be a problem, include some agricultural streptomycin in the soaking solution. (You can use a little household bleach [10 parts water : 1 part bleach] instead, but be sure to rinse it off before planting.)



Dig a hole with a hill in the middle. The object is to plant the rhizome on a firm base of earth with no air space underneath and with the roots spread out and extending down and out. Fill in the soil, pack it down well, and water very well. If you are planting bearded irises, their tops should be barely covered with good soil. (If your soil tends toward clay, leave the tops of the rhizomes exposed.) No extra watering should be necessary. If you are planting beardless irises such as Siberian Irises or Japanese Irises, they should be two or three inches deeper. Keep beardless irises well watered for the remainder of the growing season
Reply:don't have to do anything. they'll multiply on they're own.
Reply:Get a male Iris and leave them alone in a room with candles and soft music.
Reply:By sowing baby seed?

:-)
Reply:They will multiply on their own. How long have they been in the ground? If it is just a year you will probably see quite a few new ones next spring. Before you know it you will be giving them away they will multiply so fast.
Reply:I leave mine alone and they multiply every spring.
Reply:Divide them in the fall. Dig them up and the bulbs will have "babies" attached. Separate the offspring and replant using a bulb fertilizer such as bone meal.
Reply:Agree they will multiply year after year....