How cold can seedlings get?
grow-anything
14 years ago
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daylilyfanatic4
14 years agoengineeredgarden
14 years agoRelated Discussions
when can my seedlings go in the cold frame
Comments (4)It's been a couple of years since I've used my cold frame, but I remember putting my seedlings into mine as early as end March/early April. I would say now would be a good time to put them in your cold frame. I don't have a 'scientific' method, exactly, but I just put my trays in, and kept the lid ajar if it was a warmish day out; then closed the lid at night. I did this until the seedlings were hardened off, and there was no longer a risk of freezing temps; then I took them out of the cold frame, and put them in a sheltered spot (outside) until I could plant them out. Just remember to keep them watered....See MoreHow cold is too cold for onion seedlings?
Comments (2)Depending on the variety they should be able to handle those temps. I am up here in Ontario Canada and last night my Redwing and Cortland seedlings were exposed to -6.5C (20F) in my unheated greenhouse. They are in cell packs and the grow medium just about froze solid and they survived and appear to be fine now. I don't know if this will adversely affect them later in their growth ie. bolting or thick necks, I guess I'll find out. We are having another very cold night tonight so I brought them inside, I don't want to push my luck. They are about 9 weeks out from seed in 100 cell packs, about 2 - 4 seedlings per cell. Hope this helps....See Morehow cold can my Amaryllis get?
Comments (5)Inside living area is just fine, unless you live in a refrigerator. My hipps are kept outside, uncoverd, in plastic or clay pots and I only cover once or twice a year due to below freezing temps. During the last few weeks our temps have dropped to the mid to upper 30s several times (cold!!! LOL) and I notice leaf damage on about 1/3 of the plants but no permanent damage. On many of the plants where damage is noticeable, new leaves are already emerging. Note: I live in central Florida. Here, well established hipps living in ground routinely tolerate freezing to slightly below freezing temps (overnight) without permanent damage, and without being covered year after year. Good luck Mike...See MoreHow cold can it get
Comments (4)Depends if you normally get a warm period after the frosty days. We always get a few cold days at beginning of october or sooner, sometimes they will lead to frost. And then, always, without fail, at least 2 weeks of really nice weather to make you feel sorry. If no good weather is expected, there's no point in not picking, when it's so cold, all you get is increased cracking, and no otherwise progression. Tomato fruit can handle some actual ice forming on them (I have seen it happen in my garden), and the warmer the days are the better they recover. Also survival depends on how much sugar they have accumulated (in leaves and fruit)....See Moregrow-anything
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