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That depends really on how big they have got -but around September time will be fine.
Hi Melanie, I too got the T & M plug perennials. I have had mine growing in pots now for about 4 weeks and they have put on lots of growth and have doubled in size. I will keep mine in my cold greenhouse to overwinter and like Christopher says I will plant them out in the spring when i know they will have a much better chance of surviving. It is a lot to ask of a very young plant to cope with the wet and cold winter. I want to be sure they will flower next year so don't want them struggling.
They did arrive as very small plugs but i thought they were very good value for money and was pleased with them.
T and M plants are tiny, but have good root systems. Either autumn or spring will do
Don't forget that if they are young tender plants the slugs and snails will not be able to resist them. So the stronger and tougher the plant is the better chance of surviving those little blighters!
I have the same 36 plugs and they are currently potted into large plug pots. I plan on planting them out around October, once they have grown and about the same time I will take out a lot of the annuals I have currently in the bed. Hope this helps
I would pot them on this year with a view of putting them in the ground in early spring. That gives them the best chance of surviiving as you should have reasonable sized plants by then. Am guessing that you got cell sized perenials (1 inch tall). They should grow over the next few months. Add lots of grit into the pots of Lavender and keep a watch for slugs as they love Delphinium and will eat the Digatalis.
My perennial plants arrived at the end of May- tbh I was surprised how small they were. I've just kept potting them on. Here's the foxglove & delphs now. Agree with diggingdoris,watch out for slugs and snails.
Will plant these out Sept/October
I grew some delphiniums, I think they were the same variety from seed & I've still got them in pots maybe 5" square.. I want them to get large enough to stand a chance against slugs/snails.
So I'll be potting them on once more & keeping them until they're big enough next year to go in, I'm guessing late spring.
Thanks for the information, the foxgloves are nearly the same size as the ones in the garden that were grown from seed earlier this year.They seem to relatively free from slug/snail damage.
Interesting that you are going to over winter the delphiniums, I was wondering if they would survive. The ones I have had in the garden, didn't stand a chance this year.
If I overwinter them will they keep growing green foilage? I thought as perennials they would die back in the winter, when the frost arrive, and then come through again & flower the next year. Would they behave that way overwintered in a cold frame or potting shed?
I think they are fully hardy perennials, once they're not tiny baby plants. I'm hoping so anyway, although I don't know exactly what - temperature they are okay up to.
I'm in the south so was probably going to just put them next to the sheltered wall of the house overwinter, like I do my osteospermums, rather than in the greenhouse, so I don't have to worry about watering them. I'd expect them to just disappear below ground as if they were in the ground.
If there is doubt as to their hardiness I could put them in the greenhouse of course. It's unheated in the winter but would offer some protection.
Have potted up all my little plants and will leave them there until next year, Not sure if i will put them in the greenhouse or tuck them in a corner of the gardenwhere they will be clear from any frost or snow. Still trying to find room in the garden for the lavenders i got last year, think i might have to dig up a bit more of the lawn. Hate mowing the grass anyway.
HELP, the leaves on mine are going red! They are still in small pots.
Its s.urprising how quick they grow so check the size pots they are in. I repotted only 2 weeks ago and they already need bigger pots. Glad something likes the rain