Hardening off?

greenhousechik(z5b MI)May 29, 2008

My Dahlias are in an unheated greenhouse. Do I need to harden them off before planting outside? Temps can get down to 35 in the greenhouse at night and I keep it at 90 degrees during the day. I didn't harden them off last year but I'd like to make sure. I have 175 in pots with pro-mix. Most are ready to go into the ground. TIA!

GreenhouseChik

Thank you for reporting this comment. Undo
jroot(5A Ont. Canada (near Guelph))

Hardening off involves not only the temperature, but also and primarily the degree of radiation from the sun. Yours will probably harden off faster than those started indoors, but I think that the glass in greenhouses also diminishes the amount of radiation the plants receive indoors.

If I were in your shoes, I would harden them off for a few days in filtered light outside. I had almost as many pots are you have so I know the anguish of moving them all.

Fortunately, I think we are over the risk of frost here in Southern Ontario, but I will still be watching with care.

John

    Bookmark   May 29, 2008 at 5:13PM
Sign Up to comment
More Discussions
Found Dahlias
I found some dahlias bulbs that my father used to grow....
JJRoo
new guy at the forum
Hi every one I'm new to the forum but I've been reading...
rayagain
large booms
I would like to kmow a variyey which will produce a...
paul584
Devistating dahlias this year :/
Hi guys! It has been awhile since I have been on....
keriann_lakegeneva
MDS Annual Tuber Sale at Bachman's
Saturday, April 11th, 7:00 a.m. to 2:00 p.m. MDS Annual...
salvidordahlia
Sponsored Products
Pediment Gray Anya Table Lamp
Lamps Plus
Crystal Lamps: 29.5 in. Josie Oil Rubbed Bronze Table Lamp with Crystal Shade GT
Home Depot
Lights Up! Linen Shade Nikki Antique Bronze Table Lamp
Lamps Plus
SLV Lighting | Elsu Pendant Light
$396.00 | YLighting
Medallion White 42-Inch Ceiling Fan
$136.00 | Bellacor
Echeveria Succulent Silk Plant
Overstock.com
Ware Stretch N Scratch Cat Scratching Post - 11007
$104.99 | Hayneedle
Oakland Living Patio Umbrellas Mississippi 9 ft. Tiltable Patio Umbrella in
Home Depot
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™