This discussion has been closed.
Posted by hawk1987 (U15136165) on Thursday, 9th February 2012
Thinking of buying an unheated greenhouse to sow flower seeds for bedding plants for summer, and wanted to know what varieties of flowers I can grow, when to sow the seeds and if I can, whether to sow them in propagators inside the greenhouse.
Link to this forum: Growing flowers form seed in unheated greenhouses
You can grow virtually any flowers from seed -some take longer to flower than others but if you want definite flower for this year than annuals are the way to go
You have basically two types hardy annuals that can take frost or half-hardy annuals that cant-the half hardies appreciate a bit of heat to get going but not always necessary- hardy annuals will usually germinate with or without heat
You can also sow biennials that will not flower until the following season or perennials that will last in some cases for "ever" but again you may not get much until at least the following year
Having said all that germination of seeds is one thing having the facilities to grow them on is another-cold green house ? hold off for a few weeks yet there is no rush and follow the instructions on the seed packets.
This may not answer all of your questions-so come back if you wish to ask more about specific plants and how-to etc
Link to this forum: Growing flowers form seed in unheated greenhouses
Hi, thanks for the info..so i could grow petunias and other annuals from about march in trays in unheated greenhouse and not have any problems?
Link to this forum: Growing flowers form seed in unheated greenhouses
I have had very mixed results growing bedding plants from seed without heat. I often find my plants are so small that they do not flower till August and I have given in by then and bought plants from the garden centre.
I would stick to hardy annuals myself.
Can I ask how much gardening experience you have?
Link to this forum: Growing flowers form seed in unheated greenhouses
They are half-hardy so you will need to protect from frost and they will need heat to get them started-you could start them off indoors than grow them on in the greenhouse.
It really all about timing and the conditions where you are-start to early and they will not get the right growing on-conditions-it is tricky to say exactly when to start -I wont be doing any sowing till around mid-march.
Light levels and temperature are the vital ingredients
The other solution is to buy in seedlings or plug plants via mail-order where the companies have done the hard work for you-these usually arrive at the optimum time for growing on.
Costlier obviously but virtually guaranteed results.
Is this helping?
Link to this forum: Growing flowers form seed in unheated greenhouses
Hi, i have got good experience with growing vegetables and had an allotments since i was young..never grown flowers from seed
Link to this forum: Growing flowers form seed in unheated greenhouses
hawk,
I would purchase a heat mat and clear plastic dome if you want to start Petunias and other flowers. I can get the mat,tray and dome for about 30 dollars. I start all my flowers from seed. Over here our last frost date is June 1. So I start my Petunia seeds in the middle of March and they are just starting to bloom when it's time to plant them outside.
Link to this forum: Growing flowers form seed in unheated greenhouses
If you can grow veg flowers will be easy, Have fun with them.
Link to this forum: Growing flowers form seed in unheated greenhouses
Welcome to the new Gardening Board. If this is your first time, then make sure you check out the
or  to take part in a discussion.
The message board is currently closed for posting.
Weekdays 09:00-00:00
Weekends 10:00-00:00
This messageboard is .
Find out more about this board's
Â鶹¹ÙÍøÊ×Ò³Èë¿Ú © 2014 The Â鶹¹ÙÍøÊ×Ò³Èë¿Ú is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.