Irises forum→Container culture and increases

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Name: Travis
Seattle (Zone 8b)
wendit
May 27, 2020 11:55 AM CST
My question is: when TB's are grown in adequately sized containers, do you find they typically have more increases per rhizome? Any container culture tips are welcomed. Zone 8b, PNW
[Last edited by wendit - May 27, 2020 12:05 PM (+)]
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Name: Evelyn
Sierra foothills, Northern CA (Zone 8a)
Garden Procrastinator Irises Bee Lover Butterflies Plant and/or Seed Trader Region: California
Cat Lover Deer Bulbs Foliage Fan Annuals Seed Starter
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evelyninthegarden
May 27, 2020 12:12 PM CST
Travis ~ Welcome! to the Iris Forum? Hurray!

I'm no expert, but the larger the container for tall beardeds, the better the result. For one year, and only one year, they can grow and bloom in a gallon container. That is my emergency strategy until I make room for them. I do have some growing in various sizes of large pots and they are thriving.

"Luck favors the prepared mind." - Thomas Jefferson
Name: daphne
san diego county, ca (Zone 10a)
Million Pollinator Garden Challenge
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shizen
May 27, 2020 2:59 PM CST
@wendit Welcome! travis to the iris forum.

my experience in this location (10a) has been, irises in large pots do increase better. i grow mine in 15- 20 gal. size pots because i really don't have much in-ground space to grow. i have very sandy soil with nutrient poor soil. i also grow them in smaller containers, but have to repot every year for the 3+ gallon containers. that said there are a few problems for me:

1. because of my long season growing area, my irises increase quite substantially. which in turn, requires more frequent repots (seems that most others on the forum maybe able to leave their irises in 15-20 gal. containers for up to 3 yr. i've found that after 1 1/2 years mine are too packed. this makes extracting the iris for repotting even more difficult.)

2. it's quite expensive to buy 20-30 bags @ $15/bag even at warehouse stores.

3. difficult for me to wrestle the iris from the larger pots my age and stature Hilarious!


on the positive side:

1. easier to control its nutrition and water needs

2. results in better than average bloom rate

3. higher elevation, easier to see blooms

all things weighed and being equal i will always have a few in pots as long as i have help at repotting. i have really cut down on the quantity of pots, and have promised self to do more because the work involved is slipping beyond my ability to keep up. Green Grin!

hope this helps, travis, and good luck in your venture. it's a very rewarding one, or there wouldn't be so many passionate, enthusiastic members on this forum with iris virus.
[Last edited by shizen - May 27, 2020 8:51 PM (+)]
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Name: Evelyn
Sierra foothills, Northern CA (Zone 8a)
Garden Procrastinator Irises Bee Lover Butterflies Plant and/or Seed Trader Region: California
Cat Lover Deer Bulbs Foliage Fan Annuals Seed Starter
Image
evelyninthegarden
May 27, 2020 6:20 PM CST
Daphne ~ That is why I only have a few in large pots. I am going to have a "heck of a time" extracting Lady in Purple! It really needs a place in the ground.
"Luck favors the prepared mind." - Thomas Jefferson
Name: Travis
Seattle (Zone 8b)
wendit
May 28, 2020 6:58 AM CST
Thanks for the greetings and the input. I have a few new introductions coming and my desire is to multiply them quickly to share with family and for myself. Also containers would allow me to bring them under the awning when it starts raining in the fall, hopefully avoiding some leaf spot and soggy roots. I have a couple 10 gal pots that I'm going to try.

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