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Q.I Have A Large Number Of Lupine Plugs In My Greenhouse. Can I Plant Them Out? If Not, How Do I Over-winter Them?

Zone GL545UU | sheilacork added on September 11, 2020 | Answered

I am concerned that if they are planted out now they may die

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Certified GKH Gardening Expert
Answered on September 11, 2020

Your climate is, most, similar to our USDA zone 9. Lupines are very cold hardy, down to our USDA zone 4. There won't be too much concern with the cold harming them.

Assuming that your Lupines are suited for your area (that is, if they are able to survive with the lack of the cold temperatures that they like through the Winter), they will do quite well. Just make sure that the temperatures are mild for a few weeks after planting, so that they can establish.

As long as it is not overly hot, they will be fine to plant.

Here is an article to offer more information on these flowers:


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