Which seeds can be frozen?

takadi(7)May 18, 2009

This is an offshoot from a thread where a user saved and successfully germinated seeds she froze from the 70's.

Knowing this, are there any rules to freezing seeds? Which seeds can or can't be frozen?

Thank you for reporting this comment. Undo
remy_gw

Hi,
Any seed can be frozen. It must be properly dry before freezing. Purchased seed will be dry enough since it has been in storage for awhile. Seeds from the garden take a little time.
Smaller seeds will probably be properly dry in a week or two. Larger seeds though can be deceiving. Like beans can be dry, but the moisture content may not be low enough for freezing. To check for readiness, taking a few out side, putting them on a hard surface like a driveway, and hitting them with a hammer. If they smush, they aren't dry enough. If they shatter, they are dry enough to freeze.
Once in the freezer, they should be kept in a moisture proof airtight container. When taking them out of the freezer, you must let the container come to room temperature before opening. If you don't do this, you will kill the seed. It is also not a good idea to be taking the in and out a lot because seeds don't like lots of temperature swings.
So this method is good for very long term storage, and when you are only going to take the seeds out once a year for planting. If you are planning on trading seeds, this is not a good method.
Remy

    Bookmark   May 18, 2009 at 8:22AM
Thank you for reporting this comment. Undo
Chemocurl zn5b/6a Indiana(zone 5/6)

Question Remy...not all can be frozen, can they? Tropicals shouldn't be, should they? I just responded to another thread saying that not all, can, or should be frozen. Should I go eat my words?

Sue

    Bookmark   May 20, 2009 at 7:01PM
Thank you for reporting this comment. Undo
remy_gw

Sue,
Except for tropicals that should stay moist and be fresh sown like citrus, they can be frozen. If you think about it, tomatoes and peppers are tropical plants, many annuals that self-seed over the winter are actually tender perennials : )
So my statement above really should be amended because northern spring emphemerals need to to stay moist though they can be frozen(Though I just had success wintersowing with seeds of Dicentra exima(Fernleaf Bleeding Heart) that someone sent me that were in dry storage.) and some tropicals need to stay moist and should not be frozen.
Though I'm not sure why someone would be freezing tropical ornamentals. Most people freezing seeds are doing it for edibles.
Remy

    Bookmark   May 20, 2009 at 9:49PM
Sign Up to comment
More Discussions
New at this....How do I harvest parsley seeds
I have a healthy flat leaf parsley plant in my herb...
realtorrose
Ruellia/Mexican Petunia
There has to be a trick to saving these. I know they...
poisondartfrog
seeds sprouted in paper towel show mold on paper towel
I saved my zinnia seeds last year and decided to sprout...
kimpa
Named variety Echinops true from seed?
Hi, I've been given some seedheads of what I think...
perennial2014
Chaenomeles (Quince) shrub- info please
Hi guys! Yesterday I cracked open the fruit from my...
christinmk z5b eastern WA
Sponsored Products
Uttermost Set of 4 Fendrel Squares Decorative Wall Mirrors
Lamps Plus
Osgood Iron Pendant by Arteriors
$672.00 | Lumens
Potter
Lumigado
Gama Sonic Outdoor Lighting. Flora 12.5 in. Wall Mount Outdoor Antique Bronze 6
$89.99 | Home Depot
Tripod Legs with Platform Wood Base Brown Shade Table Lamp
ParrotUncle
Vigo 31" Moderna Trio Single Bathroom Vanity - Wenge
Modern Bathroom
Luceplan | Hope Floor Lamp
YLighting
Miris T-2711 Elliptical Pendant Light
Lightology
© 2015 Houzz Inc. Houzz® The new way to design your home™